May 2025
M T W T F S S
 1234
567891011
12131415161718
19202122232425
262728293031  

ISRO Missions and Discoveries

125 Years of Kodaikanal Solar Observatory (KoSO) 

Why in the News?

The Department of Posts has released a commemorative postage stamp to mark 125 years of the Kodaikanal Solar Observatory (KoSO)—one of India’s oldest and most significant astronomical research centres dedicated to studying the Sun.

About the Kodaikanal Solar Observatory (KoSO):

  • Founding: Established in the late 19th century, KoSO was established in 1899 after atmospheric surveys by Charles Michie Smith.
  • Location: It is located in Kodaikanal, Tamil Nadu, in the Palani Hills, chosen for its excellent sky conditions.
  • Early Observations: Initially focused on observing sunspots, solar prominences, and solar radiation.
  • Modern Equipment: Now equipped with the H-alpha telescope (for flares and prominences) and WARM (for high-resolution sunspot imaging).
  • Institutional Role: Became part of the Indian Institute of Astrophysics (IIA) in April 1971.
  • Scientific Importance: KoSO contributes to understanding the Sun’s effect on Earth’s climate and space weather.

Important Observations / Discoveries:

  • Evershed Effect (1909): Discovered by John Evershed, it was the first observation of radial gas outflows in sunspots, a key finding in solar physics.
  • Historic Solar Archive (1904–2017): Created one of the world’s longest continuous solar datasets.
  • Digitization: First Indian observatory to digitise solar data (since 1984); currently maintains a digital archive of 1.48 lakh images (~10 TB).
  • Wider Scientific Work: Extended research into cosmic rays, radio astronomy, ionospheric physics, and stellar astrophysics over the decades.
[UPSC 2016] Discuss India’s achievements in the field of Space Science and Technology. How the application of this technology has helped India in its socio-economic development?

 

Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024

Attend Now

North-East India – Security and Developmental Issues

50 years of Sikkim’s integration with India

Why in the News? 

May 16 is observed annually as Sikkim Day, marking the historic occasion in 1975 when the Kingdom of Sikkim formally became a state of India.

About the Kingdom of Sikkim

  • Foundation: The Kingdom of Sikkim was established in 1642, when three Tibetan lamas crowned Phuntsong Namgyal as the first Chogyal (monarch).
  • Namgyal dynasty: It ruled Sikkim for 333 years, maintaining a Buddhist monarchy until 1975.
  • Treaty of Tumlong (1861): It made Sikkim a British protectorate, where the Chogyals retained internal authority while the British handled external affairs.
  • Other key treaties shaping Sikkim’s status: These included the Treaty of Titaliya (1817), Calcutta Convention (1890), and Lhasa Convention (1904), which defined borders and reaffirmed British influence.

How did Sikkim join India?

  • Post-1947 Status: After India’s independence, Sikkim did not join India like other princely states, due to its unique British treaty status.
  • Nehru’s Approach: While Sardar Patel and B.N. Rau wanted Sikkim to accede, Jawaharlal Nehru opted for a Standstill Agreement to preserve the status quo.
  • Indo-Sikkim Treaty of 1950: This treaty made Sikkim an Indian protectorate, with India managing defence, foreign affairs, and communications.
  • Role of Sikkim National Congress: Led by Kazi Dorji, the SNC became the key pro-democracy and pro-merger party.
  • 1973 Agreement: After widespread protests, a tripartite agreement was signed between the Chogyal, the Government of India, and the Sikkimese parties.
  • Democratic Transition: In 1974, elections were held, and a new constitution reduced the monarch’s powers.
  • Referendum of 1975: In April 1975, over 97% of voters supported abolishing the monarchy and merging with India.
  • Merger with India: In May 1975, the 36th Constitutional Amendment was passed, and Sikkim became the 22nd state of India. It added Article 371F to provide special provisions for the state of Sikkim.

Back2Basics: Article 371F of the Indian Constitution

  • Constitutional Origin: Added by the 36th Amendment Act (1975) when Sikkim became the 22nd state of India.
  • Objective: Protects Sikkim’s unique history, culture, and legal system during integration.
  • Legislative Assembly: Sikkim must have at least 30 MLAs, fewer than other states under Article 170.
  • Parliamentary Representation: Sikkim has 1 Lok Sabha and 1 Rajya Sabha seat, with the Assembly electing the MP.
  • Governor’s Role: Governor holds special responsibility for peace, equity, and development.
  • Pre-Merger Laws: Existing laws and judgments before 1975 remain valid unless changed by Parliament.
  • Presidential Powers: President can modify laws and extend central laws to Sikkim within two years post-merger.
  • Land and Job Rights: Only 1961-registered Sikkimese can own land or hold state government jobs.
  • Tax Exemption: Original Sikkimese were exempt from income tax.
  • Recent Controversy: The Finance Bill, 2023 expanded the term “Sikkimese”, raising concerns over erosion of indigenous rights.

 

[UPSC 2007] Which one of the following is the correct chronological order of the formation as full States of the Indian Union?

Options:

(a) Sikkim-Arunachal Pradesh-Nagaland-Haryana

(b) Nagaland-Haryana-Sikkim-Arunachal Pradesh *

(c) Sikkim-Haryana-Nagaland-Arunachal Pradesh

(d) Nagaland-Arunachal Pradesh-Sikkim-Haryana

 

Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024

Attend Now

Liquor Policy of States

Drinking to death: On illicit liquor cases

Why in the News?

Recently, in Majitha, Amritsar district of Punjab, 21 people aged between 26 and 80 died and 10 others were critically hospitalised after allegedly drinking spurious liquor.

Note: Hooch tragedies refer to incidents where people die or fall seriously ill after consuming illicit or spurious liquor.

What systemic issues contribute to recurring hooch tragedies in India?

  • Poverty and Social Vulnerability: Poor, daily wage earners often turn to cheap illicit liquor as a coping mechanism. Eg: Victims in the 2023 Punjab hooch tragedy were mostly from low-income backgrounds.
  • Easy Availability and Misuse of Methanol: Methanol, an industrial chemical, is cheap, easily pilfered, and often used in spurious liquor despite being highly toxic. Eg: Bootleggers dilute methanol to create hooch, as seen in several mass poisoning incidents.
  • Weak Regulatory Oversight and State Capacity: Lax control over methanol transport and lack of inter-state coordination enable theft and illegal use. Eg: No central framework exists to monitor methanol movement, despite repeated incidents.
  • Corruption and Nexus Among Stakeholders: A deep-rooted nexus between bootleggers, local politicians, and police often shields the culprits. Eg: In many hooch cases, police are suspended post-tragedy, but no long-term accountability follows.
  • Ineffective Legal Enforcement: Laws like the Poison Act are rarely used, and convictions are rare due to weak evidence or delayed trials. Eg: In the 2015 Malvani case, only 4 out of 14 accused were convicted after 9 years.

Who is primarily accountable for spurious liquor deaths?

  • Bootleggers and Illicit Manufacturers: They produce and distribute toxic brews, often using dangerous chemicals like methanol for profit. Eg: In the 2023 Punjab hooch case, bootleggers used methanol-laced liquor that killed at least 23 people.
  • Corrupt Law Enforcement Agencies: Police often ignore illegal activities due to bribes or political pressure, enabling the supply chain to flourish. Eg: After the Punjab incident, several police officers were suspended for negligence.
  • Regulatory Authorities and State Governments: Weak oversight of methanol distribution, lack of tracking mechanisms, and poor implementation of prohibition laws lead to repeated failures. Eg: States lack robust frameworks to monitor industrial alcohol movement, allowing diversion.
  • Local Politicians and Political Nexus: Some politicians support or protect bootleggers for electoral or financial gains, compromising public safety.

What are the legislations to regulate spurious liquor or illicit alcohol in India? 

  • The Poisons Act, 1919: Regulates the manufacture, possession, sale, and transport of poisonous substances like methanol, which is often diverted to make illicit liquor. Eg: Methanol is classified as a Class B poison under this Act, but its diversion is a key issue in hooch tragedies.
  • The Essential Commodities Act, 1955: Controls the production and distribution of essential goods, including alcohol ingredients, to prevent hoarding and illegal diversion. Eg: Used to regulate methanol supply and prevent pilferage that fuels illicit liquor trade.

Why has the legal framework failed to ensure convictions in illicit liquor cases?

  • Weak Application of Existing Laws: Cases are often booked under prohibition laws or general criminal provisions, but not under stronger laws like the Poison Act or organized crime statutes, leading to weaker prosecution. Eg: In the 2015 Malvani hooch tragedy (Mumbai), 105 people died, but the court acquitted 10 out of 14 accusedafter 9 years; none was convicted under the Poison Act.
  • Poor Evidence Collection and Investigation: Police often fail to collect scientific and documentary evidence, link the entire supply chain, or prove intent and causation beyond reasonable doubt. Eg: In multiple cases, including the 2023 Bihar hooch incident, forensic reports were delayed or inconclusive, weakening the case in court.
  • Lack of Inter-State Regulatory Mechanism for Methanol: Methanol, used industrially, is not illegal in itself. Without a centralised tracking system, tracing its diversion becomes difficult, weakening the case against suppliers. Eg: Bootleggers source methanol from authorised dealers across states, making it hard to fix legal liability on any single actor.

What policy measures can prevent methanol diversion into the illicit liquor trade? (Way forward)

  • Centralised Methanol Monitoring Framework: Establish a nationwide tracking system for methanol production, transport, and sale using barcoding or GPS tracking. Eg: Like the track-and-trace system for pharmaceutical drugs, methanol consignments can be monitored to prevent theft or leakage.
  • Tighter Regulation and Licensing of Dealers: Enforce strict licensing norms for methanol dealers with regular audits and surprise inspections; cancel licences for non-compliance. Eg: Some states classify methanol as a Class B poison and regulate it under the Poison Act.
  • Criminal Liability for Supply Chain Negligence: Amend laws to hold manufacturers and transporters accountable for diversion due to negligence or collusion, with higher penalties and jail terms. Eg: In the Punjab hooch tragedy (2020), weak action against upstream suppliers limited accountability—stronger legal deterrents can close such gaps.

Mains PYQ:

[UPSC 2024] Explain how narco-terrorism has emerged as a serious threat across the country. Suggest suitable measures to counter narco- terrorism.

Linkage: Criminal activities linked to trafficking dangerous substances for profit and the security threats they pose, similar in nature to the illicit methanol trade described in the article.

Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024

Attend Now

Foreign Policy Watch: India-Pakistan

Terror, treaties, and civilisations: Indus through the centuries

Why in the News?

On April 22, a terrorist attack in Pahalgam, Kashmir, killed 26 civilians. In response, the Indian government took several diplomatic steps, including suspending the Indus Waters Treaty (IWT).

Why is the Indus Waters Treaty crucial for India-Pakistan ties?

  • Framework for Water Sharing: The IWT provides a clear, legally binding agreement on how the Indus River and its tributaries are shared, reducing the risk of water conflicts between India and Pakistan. Eg: India controls the eastern rivers (Ravi, Beas, Sutlej), while Pakistan manages the western rivers (Indus, Jhelum, Chenab), helping avoid disputes over water access.
  • Endurance Amid Political Tensions: Despite wars and terrorist attacks (e.g., 2008 Mumbai attacks, 2019 Pulwama attack), the treaty has endured for over six decades, maintaining a vital channel of cooperation between two hostile neighbors. Eg: Even after the 2019 Pulwama terror attack, the treaty remained a key framework for managing shared water resources.
  • Diplomatic Leverage and Stability: The treaty serves as a strategic tool in diplomatic relations, with India occasionally using it as leverage while ensuring continued water flow, preventing escalation into broader conflict. Eg: After the 2023 Pahalgam attack, India announced suspension of some treaty provisions as a diplomatic response.

How does climate change affect the Indus Basin?

  • Glacial Melt and Water Flow Variability: The Indus Basin depends heavily on glacier-fed rivers, with about 80% of water coming from glacial melt. Climate change accelerates glacier melting, causing short-term floods and long-term water shortages during dry seasons.
  • Rising Water Demand and Scarcity: Growing population and agricultural needs increase pressure on limited water resources, worsening water scarcity in the basin, especially in Pakistan, where water availability has dropped below critical levels. Eg: Irrigation losses in Pakistan exceed 50% in some areas, threatening food security.
  • Impact on Agriculture and Livelihoods: Reduced and unpredictable water flow due to climate change affects crop yields and fisheries, destabilizing rural economies dependent on the Indus Basin.

How did colonial irrigation projects influence post-independence water disputes?

  • Extensive Canal Systems Built by British: The British developed large canal networks for irrigation, creating shared water infrastructure across regions. Eg: The 1915 Triple Canal Project linked major tributaries, affecting river flows between future India and Pakistan.
  • Altered Natural River Flow: British dams and barrages controlled floods and irrigation but changed river courses, leading to downstream access issues. Eg: Barrages on the Indus and its tributaries shifted water availability patterns.
  • No Formal Water Sharing Post-Partition: At independence, India and Pakistan inherited interconnected irrigation but lacked agreements on water distribution. Eg: This led to conflicts over the use of eastern and western rivers after 1947.
  • Regional Water Imbalances: Colonial irrigation prioritized certain areas, creating uneven water distribution that fueled disputes. Eg: Punjab’s canal systems served both countries but became points of contention.

What lessons can India draw from other river treaties? (Way forward)

  • Promote Cooperative Water Management: Successful treaties often emphasize joint management and data sharing to build trust and avoid conflicts. Eg: The Mekong River Commission involves multiple countries collaborating on water usage and flood control.
  • Include Climate Change Adaptation: Modern treaties factor in environmental changes and sustainable usage to address future water challenges. Eg: The Nile Basin Initiative incorporates climate resilience strategies for water-sharing among East African nations.
  • Establish Dispute Resolution Mechanisms: Effective treaties have clear, impartial conflict resolution processes to handle disagreements peacefully. Eg: The Danube River Protection Convention includes mechanisms for arbitration and mediation among European countries.

Mains PYQ:

[UPSC 2020] In what way have the science-based technologies triggered off striking changes in agriculture?

Linkage: Genome editing is a science-based technology that represents a significant advancement capable of triggering changes in agriculture by developing improved crop varieties.

Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024

Attend Now

[16th May 2025] The Hindu Op-ed: Does Article 21 include right to digital access?

PYQ Relevance:

[UPSC 2022] The Rights of Persons with Disabilities Act, 2016 remains only a legal document without intense sensitisation of government functionaries and citizens regarding disability. Comment.

Linkage: Welfare schemes for vulnerable sections of the population by the Centre and States and the performance of these schemes; mechanisms, laws, institutions and Bodies constituted for the protection and betterment of these vulnerable sections.

 

Mentor’s Comment: On 30 April, 2025, the Supreme Court’s directive to revise digital KYC norms to ensure accessibility for persons with disabilities (PwDs), recognizing digital access as a fundamental right under Article 21. It highlights legal safeguards like the RPwD Act 2016, challenges faced by PwDs in current KYC processes, and the Court’s emphasis on inclusive, accessible digital infrastructure for marginalized groups.

Today’s editorial discusses the Supreme Court’s order to update digital KYC rules to make them accessible for persons with disabilities (PwDs). This topic is useful for GS Paper II (covering governance, the Supreme Court’s role, and issues related to vulnerable groups like PwDs).

_

Let’s learn!

Why in the News?

Recently, ​​the Supreme Court of India directed the revision of digital Know Your Customer (KYC) norms to ensure they are accessible to persons with disabilities (PwDs), especially the visually impaired.

What KYC changes did the Supreme Court direct for PwDs?

  • Mandated Accessible Digital KYC Processes: KYC procedures must include accessible design features like screen-reader compatibility, audio cues, and simplified verification steps.
  • Alternative Identity Verification Methods: KYC systems must allow thumb impressions, signatures in accessible formats, and alternative ways to verify identity without facial recognition or selfies. Eg: An acid attack survivor unable to use facial recognition can verify their identity using thumb impression linked with Aadhaar and OTP verification.
  • Uniform Accessibility Standards Across Institutions: All regulated entities (banks, telecom, SEBI, etc.) must follow a standardized, inclusive KYC frameworkrather than creating their own tests Eg: Every bank and mobile provider must adopt unified, accessible KYC apps that meet 2021 and 2022 ICT Accessibility Standards, ensuring consistency and inclusion.

Which laws protect the rights of PwDs in India?

  • Constitution provision: Guarantees equality, dignity, and non-discrimination through the Preamble, Fundamental Rights(Articles 14, 15, 21), and Directive Principles (Article 38). Eg: Under Article 21, the Supreme Court reinterpreted the right to life to include digital access for PwDs.
  • Rights of Persons with Disabilities (RPwD) Act, 2016: Adopts a social-barrier model of disability and mandates measures for accessibility, inclusion, and equal opportunity. Eg: Section 42 requires the government to ensure accessible electronic media, including sign-language, audio descriptions, and captions.
  • UN Convention on the Rights of Persons with Disabilities (UNCRPD): India is a signatory and is obligated to promote, protect, and ensure full human rights and freedoms of PwDs. Eg: The RPwD Act, 2016 was enacted to give domestic effect to the UNCRPD’s principles like accessibility, dignity, and non-discrimination.
  • Information and Communication Technology (ICT) Accessibility Standards (2021, 2022): Prescribe technical standards for websites, apps, and digital services to be screen-reader friendly, with audio/video guidance. Eg: Despite these standards, most KYC platforms lack audio prompts or camera alignment assistance, which the SC directed to be rectified.

Why do banks and other financial and government institutions mandate collecting KYC details?

  • Ensures Security: KYC helps identify and verify customers, reducing risks of money laundering, fraud, and terrorism financing. Eg: Under the Prevention of Money-laundering Act, 2002, banks are required to verify identities and report suspicious transactions to the Financial Intelligence Unit.
  • Availing Financial and Telecom Services: KYC is a regulatory requirement to access services like bank accounts, SIM cards, demat accounts, insurance, and pension schemes. Eg: A person must complete KYC to open a bank account or activate a mobile number.
  • Enables Access to welfare schemes:  Digital KYC links individuals to Aadhaar-based Direct Benefit Transfers (DBTs), ensuring targeted delivery of welfare schemes. Eg: Students must complete e-KYC to receive national scholarshcips or access Aadhaar-linked subsidieslike LPG or pensions.

How do current KYC methods exclude PwDs?

  • Visual Verification Disadvantage: Steps like reading flashing codes, aligning for selfies, or signing on paper are inaccessible to those with visual impairments or disfigurements. Eg: A blind user cannot complete video-KYC if the app lacks screen-reader prompts or audio guidance for camera positioning.
  • Lack of Alternative Biometric Methods: Common alternatives like thumb impressions are not accepted as valid signatures, and PAN cards aren’t issued with them. Eg: A visually impaired person using thumbprint verification may be denied KYC approval due to lack of signature or photo verification.
  • Non-Compliant Digital Infrastructure: Most KYC apps and portals violate ICT Accessibility Standards by lacking features like text-to-speech, audio cues, or accessible form inputs. Eg: A KYC website without voice feedback or keyboard navigation makes it impossible for a person using assistive tech to complete the process independently.

Why did the SC link digital access to Article 21?

  • Digital Access is Integral to the Right to Life and Dignity: The Court held that in today’s digital era, access to essential services through digital means is part of living with dignity and autonomy. Eg: Denying blind users the ability to complete KYC digitally affects their right to life under Article 21 by limiting access to banking or welfare services.
  • Ensures Substantive Equality:  The Court emphasized substantive equality, noting that equality is not just about treating everyone the same, but removing barriers for the disadvantaged. Eg: People with visual impairments face unique hurdles with video-KYC, which violates their equal access to services guaranteed under Articles 14 and 21.
  • Bridges the Digital Divide:  The judgment recognized that digital exclusion impacts not just PwDs, but also rural citizens, elderly people, and linguistic minorities, deepening socio-economic inequality. Eg: During COVID-19, the Court earlier ruled that digital vaccine portals must be accessible, reinforcing the idea that public digital infrastructure must be inclusive.

Way forward: 

  • Adopt Inclusive Digital Design Standards: Ensure all KYC platforms follow universal design principles with features like screen-readers, voice prompts, and alternative authentication methods.
  • Mandate Regulatory Oversight and ComplianceRBI, SEBI, and DoT must monitor and enforce accessibility standards across all regulated entities to guarantee equal digital access for PwDs.

Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024

Attend Now

Article 143 of the Indian Constitution

Why in the News?

The Tamil Nadu CM has criticised the Presidential Reference under Article 143 as a “desperate attempt” to weaken State powers, following a Supreme Court ruling that set timelines for Governors and the President to act on State Bills.

Article 143 of the Indian Constitution

Recent Invocation:

  • The Presidential Reference asked whether the Supreme Court could impose timelines on:
    • Governors under Article 200 (assent to State Bills)
    • The President under Article 201 (Bills reserved for Presidential assent)

What is Article 143 of the Indian Constitution?

  • Article 143 empowers the President of India to seek the advisory opinion of the Supreme Court on any question of law or fact that is-
    • of public importance
    • Likely to arise or has already arisen
  • This provision defines the Supreme Court’s advisory jurisdiction, exclusive to the President.
  • Sub-clauses and Legal Operation:
    • Article 143(1): The President may refer any matter to the Supreme Court for its opinion. In the first case, the Supreme Court may tender or may refuse to tender its opinion to the president.
    • Article 143(2): Allows the President to refer disputes arising from pre-Constitution agreements, including state-related matters, for the Supreme Court’s opinion. The Supreme Court must tender its opinion to the President.
  • Nature of the Reference: The Supreme Court’s opinion is advisory and NOT legally binding since it is NOT a judicial pronouncement.
  • President’s Response: It is NOT binding on the President; he/she may follow or may not follow the opinion. However, it facilitates the government to have an authoritative legal opinion.
  • Types of Questions Referred: Article 143(1) allows the President to refer questions of law or fact.
    1. Legal questions: Constitutional interpretation, rights, and executive powers.
    2. Factual questions: The 1993 Ram Janmabhoomi-Babri Masjid reference asked whether a temple existed at the disputed site.
  • Judicial Interpretation: The Supreme Court has clarified that Article 143 is broad in scope and not limited to questions that have arisen; potential or likely questions can also be referred.

Executive’s Control of Presidential Reference: 

  • Although Article 143 vests the power in the President, the real decision to refer is taken by the Union Council of Ministers under Article 74(1). 
  • Article 74(2) bars the Court from inquiring whether such advice was given.

 

[UPSC 2010] Consider the following statements:

The Supreme Court of India tenders’ advice to the President of India on matters of law or fact

1. on its own initiative (on any matter of larger public interest).

2. if he seeks such an advice.

3. only if the matters relate to the Fundamental Rights of the citizens.

Which of the statements given above is/are correct?

Options: (a) 1 only (b) 2 only * (c) 3 only (d) 1 and 2 only

 

Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024

Attend Now

Wildlife Conservation Efforts

India assembles First Chromosome-Level Genome of the Yak

Why in the News?

Specialists from the Indian Council of Agricultural Research (ICAR) have successfully assembled the first-ever chromosome-level genome of the Indian yak (Bos grunniens).

India assembles First Chromosome-Level Genome of the Yak

About the Indian Yak (Bos grunniens):

  • The Indian yak, often referred to as the ‘ship of the Himalayas’, plays a crucial role in the high-altitude economies of India.
  • Features: It is known for its resilience and adaptability to extreme environments. It provides meat, milk, and manure and is a vital mode of transportation.
  • Habitat: It inhabits the regions above 7,000 feet in Ladakh, Sikkim, Arunachal Pradesh, and Himachal Pradesh.
  • Conservation Status: It is assessed as Vulnerable under the IUCN Red List and included in CITES Appendix I and Schedule I in the Indian Wildlife (Protection) Act, 1972.

Significance of the Research:

  • Mapping Method: The study used long-read sequencing and advanced bioinformatics to map yak genes with high precision.
  • Feature Identification: The genome will help identify genes for cold tolerance, disease resistance, and milk production.
  • Comparative Applications: It will allow comparative studies with other bovine species to discover valuable genetic traits (alleles).
  • Breeding and Conservation: The data will support better breeding strategies and the creation of conservation plans for yaks.
  • Livelihood Impact: This research supports sustainable development and could improve the livelihoods of Himalayan yak herders through targeted livestock improvements.
[UPSC 2017] According to the Wildlife (Protection) Act, 1972, which of the following animals cannot be hunted by any person except under some provisions provided by law?

1. Gharial 2. Indian wild ass 3. Wild buffalo

Select the correct answer using the code given below:

Options: (a) 1 only (b) 2 and 3 only (c) 1 and 3 only (d) 1, 2 and 3*

 

Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024

Attend Now

Innovations in Sciences, IT, Computers, Robotics and Nanotechnology

Scientists create 2D Metal Sheets using High-Pressure Technique

Why in the News?

A team of researchers from top Chinese scientific institutions has reported a major breakthrough in the creation of atomically thin 2D metal sheets using a novel high-pressure sandwich method.

About the 2D Metal Created:

  • Definition: 2D metals are only one or two atoms thick, so electrons can move in just two dimensions.
  • Quantum Confinement: Electrons in 2D metals are restricted to specific energy levels, similar to how they behave in atoms.
  • Scientific Interest: Metals like bismuth, tin, and lead in 2D form are being studied for their electrical, magnetic, and quantum properties.
  • Applications: Their special properties make them useful for quantum computing, sensors, and advanced electronics.

Technologies Involved:

  • Quantum Dots: These are tiny semiconductors where electrons are tightly confined, creating quantised energy states.
  • Quantum Confinement: In quantum dots, electrons can’t move freely in any direction, leading to discrete energy levels.
  • Link to 2D Metals: In 2D metals, electrons are confined in two dimensions, changing conductivity, magnetism, and optical behaviour.
  • Process: Chinese scientists created 2D metals by sandwiching metal powder between two MoS₂-coated sapphire layers.
  • Steps involved: The structure is heated, twisted, and pressed to form ultra-thin sheets, then cooled and peeled off.
  • Material Choice: MoS₂ and sapphire were chosen for their strength, smoothness, and low chemical reaction with metal.

Note: 

Quantum confinement occurs when a particle like an electron is trapped in an extremely small space, such as a nanoscale material. This restriction changes its energy levels, making them discrete instead of continuous. As a result, the material’s properties—like color and conductivity—can change with size.

 

[UPSC 2012] Graphene is frequently in the news recently. What is its importance?

1. It is a two-dimensional material and has good electrical conductivity.

2. It is one of the thinnest but strongest materials tested so far.

3. It is entirely made of silicon and has high optical transparency.

4. It can be used as ‘conducting electrodes’ required for touch screens, LCDs and organic LEDs.

Options: (a) 1 and 2 only (b) 3 and 4 only (c) 1, 2 and 4 only* (d) 1, 2, 3 and 4

 

Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024

Attend Now

ISRO Missions and Discoveries

Chandrayaan-5 (LUPEX Mission) enters Preliminary Design Phase

Why in the News?

India and Japan have begun the preliminary design phase of the Chandrayaan-5 mission, also known as LUPEX (Lunar Polar Exploration).

Back2Basics: Legacy of Chandrayaan Missions

  • Chandrayaan-1 (2008): First mission, focused on mineral and chemical mapping.
  • Chandrayaan-2 (2019): Orbiter mission with 98% success.
  • Chandrayaan-3 (2023): Achieved a historic soft landing on the Moon’s south pole.
  • Chandrayaan-4 (Upcoming, 2027):
    • It is a planned lunar sample return mission by ISRO, expected to launch around 2027, with the landing site near Statio Shiv Shakti at the lunar south pole.
    • The mission involves five modules launched on two LVM-3 rockets, later docked in Earth orbit to form an integrated spacecraft.
    • A robotic arm and drill will collect 2–3 kg of surface and sub-surface lunar samples for return to Earth.
    • The Re-entry Module (RM) will re-enter Earth’s atmosphere with the samples using ballistic re-entry, marking India’s first attempt at sample return.
  • Chandrayaan-5 / LUPEX: Aimed at deeper exploration with global participation.
  • Manned Lunar Mission: Prospected lunar landing by 2040.

About Chandrayaan-5/LUPEX Mission:

  • It is a collaborative mission between ISRO and JAXA.
  • Approval: Cabinet approval for the mission was granted on March 10, 2025.
  • Launch: It will carry a 6.5-tonne payload and launch aboard Japan’s H3 rocket in 2027–28.
  • Collaboration: The lander is being developed by ISRO and the 350-kg rover by JAXA.
  • Duration: The mission is expected to last 100 days, with a possible extension of one year.
  • Mission Goals and Objectives:
    • Explore water and regolith in the lunar south pole’s Permanently Shadowed Regions (PSRs).
    • Drill into the Moon’s surface, analyse soil samples, and perform in-situ experiments.
    • Assess water content, quality, and analyse surface volatiles using advanced instrumentation.
    • Exploration of the far side of the Moon.

Scientific Collaboration and Instruments:

  • A total of 7 scientific instruments will be onboard the mission.
  • ISRO’s Contribution: Development of the lander; creation of one sensor in a major four-sensor instrument.
  • JAXA’s Contribution: Development of the rover and three sensors in the same instrument; Rover is designed to climb 25° inclines and operate on a complex battery charging protocol.
  • ESA (European Space Agency): Developing a mass spectrometer.
  • NASA: Contributing neutron spectrometers.
[UPSC 2009] In the context of space technology, what is Bhuvan, recently in the news?

Options: (a) A mini satellite launched by ISRO for promoting the distance education in India (b) The name given to the next Moon Impact Probe, for Chandrayaan-II (c) A geoportal of ISRO with 3D imaging capabilities of India* (d) A space telescope developed by India

 

Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024

Attend Now

Why UK is tightening immigration rules, how Indians will be affected

Why in the News?

Recently, the United Kingdom (UK) has announced new plans to change its immigration rules to reduce the number of people moving to the country.

What are the key immigration reforms proposed to control net migration?

  • Raising Skilled Worker Visa Threshold: The requirement for the ‘skilled worker’ visa will be raised from the senior secondary level (A-level) back to the degree level. (The previous Conservative government lowered it to A-level in 2020.)
  • Ending Social Care Visas: The UK will no longer issue social care visas to foreign workers, reversing the post-COVID-19 expansion that allowed easier entry for care workers.
  • Reducing Graduate Visa Duration: The graduate visa, which allows international students to stay and work after completing their studies, will be shortened from 2 years to 18 months (3 years for PhD holders).
  • English Language Requirement for Dependents: Dependents of visa holders will now have to meet English language proficiency requirements to promote social integration.
  • Increasing Settlement Period: The minimum qualifying period for ‘settlement’ (permanent residency) will be increased from 5 years to 10 years.

Why has the UK decided to discontinue social care visas for foreign workers?

  • Increased Migration and Pressure on Services: The rise in social care visas after COVID-19 led to a large influx of foreign care workers, which added strain to public services and housing. Eg: Over 114,000 additional health and care worker visas were issued between 2021 and 2023, mainly to South Asian and African nationals.
  • Reducing Low-Skilled Migration: The government plans to reduce low-skilled migration by raising visa requirements, such as increasing the skill level from A-level to a degree. Eg: Social care sector.
  • Promoting Domestic Workforce Development: There is a push to invest in training and apprenticeships for UK residents instead of relying on imported cheap labour. Eg: PM Starmer highlighted the need to focus on local skills development rather than importing workers in sectors like social care.

Who are the major beneficiaries of the UK’s visa ?

  • South Asian Nationals: A large number of work visas were issued to workers from India, Pakistan, and Bangladesh. Eg: Many Indian care workers received health and care visas between 2021 and 2023.
  • Sub-Saharan African Nationals: Significant numbers of care workers came from countries like Zimbabwe, Ghana, and Nigeria. Eg: The visa route helped fill care sector jobs with workers from these African nations.

How have Indian students and workers been affected by recent changes in UK visa policies?

  • Shorter Post-Study Work Visa: Graduate visa reduced from 2 years to 18 months, limiting job opportunities for Indian students. Eg, many now have less time to build careers in the UK.
  • Higher Skill Requirements: Skilled worker visas now require a degree-level qualification, excluding some mid-skilled jobs. Eg, Indian engineers and healthcare workers face stricter eligibility.
  • English Language Rules for Dependents: Dependents must meet English proficiency requirements to promote integration. Eg, Indian families may find it harder to join relatives.
  • Longer Residency for Settlement: Permanent residency eligibility increased from 5 to 10 years. Eg, Indians must wait longer to settle permanently.
  • Increased Tuition Costs: Proposed 6% fee levy on international students raises study costs. Eg, this could discourage Indian students from studying in the UK.

Way forward: 

  • Enhance Domestic Skill Development: Invest significantly in vocational training and apprenticeships to reduce dependency on low-skilled foreign labour and create local employment opportunities.
  • Balance Migration Policies: Implement targeted immigration reforms that maintain the UK’s competitiveness in attracting global talent while ensuring sustainable public service capacity and social integration.

Mains PYQ:

[UPSC 2023] Indian diaspora has scaled new heights in the West. Describe its economic and political benefits for India.

Linkage: The tightening of immigration rules in Western countries like the UK directly impacts the size, composition, and potential “scaling of new heights” of the diaspora, and thus implicitly affects the economic and political benefits for India.

Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024

Attend Now

Economic Indicators and Various Reports On It- GDP, FD, EODB, WIR etc

Under control: On the latest inflation data 

Why in the News?

Retail inflation dropped to 3.16% in April, marking its lowest level in nearly six years. This shows that prices are rising more slowly, bringing relief to consumers and policymakers.

What caused the recent fall in retail and wholesale inflation in April?

  • Sharp Drop in Vegetable Prices: Retail inflation was driven down by a nearly 11% drop in vegetable prices. Eg: Wholesale potato prices fell by 24.3% compared to April last year.
  • Falling Crude Oil and Fuel Prices: Crude oil and natural gas inflation hit a 22-month low of -15.55%. Eg: Petrol prices contracted by 7.7%, and diesel by 5.04% at the wholesale level.
  • Government Measures to Control Prices: Actions like open market foodgrain releases, buffer stock management, and eased imports helped stabilize supply. Eg: These steps helped prevent food shortages and kept overall food inflation at 2.55%, a 22-month low.

Why is the contraction in vegetable prices considered partly due to the base effect?

  • High Inflation Last Year (Base Effect): In April last year, vegetable inflation was very high, in the range of 27%-30%. Eg: A sharp rise last year creates a high base, making even stable or slightly falling prices this year appear like a large drop.
  • Statistical Comparison Distortion: Inflation is measured year-on-year, so a high base can exaggerate the percentage fall in the current period.Eg: If tomato prices were ₹100 last year and are ₹90 now, it shows a 10% fall—but last year’s ₹100 was unusually high.
  • Not Solely Due to Supply Improvement: The large fall in prices this year is not only because of better supply or government action but also due to last year’s spike. Eg: Last year’s shortages due to unseasonal rains had led to higher prices, inflating the base.

How have government actions helped in easing inflation?

  • Strengthening Buffer Stocks: The government has maintained adequate buffer stocks of food items like rice, wheat, and pulses to manage supply shocks. Eg: Releasing pulses from buffer stocks during price spikes helped stabilise market supply and reduce inflationary pressure.
  • Open Market Sales to Regulate Prices: Through open market operations, the government released surplus food items into the market to control prices. Eg: Open sale of onions and tomatoes by agencies like NAFED helped bring down retail prices during seasonal spikes.
  • Relaxation of Import Restrictions:  The government eased import norms and reduced import duties on key commodities during shortages. Eg: Reduction in import duties on edible oils and pulses led to higher supply and reduced food inflation.

What policy actions are expected from the RBI and the government based on the latest inflation data? (Way forward)

  • Likely Cut in Interest Rates by RBI: With inflation easing, especially retail inflation falling for six consecutive months, the RBI’s Monetary Policy Committee (MPC) may cut policy rates to support growth. Eg: The RBI might reduce the repo rate in the upcoming June review to boost borrowing and investment.
  • Reduction in Fuel Prices by Oil Marketing Companies: With crude oil inflation hitting a 22-month low, the government is expected to direct public sector oil companies to cut petrol, diesel, and LPG prices. Eg: Despite a 42% fall in global crude prices over three years, retail fuel prices remained almost unchanged; a correction is now anticipated.

Mains PYQ:

[UPSC 2024] What are the causes of persistent high food inflation in India? Comment on the effectiveness of the monetary policy of the RBI to control this type of inflation.

Linkage: “India’s Easing Inflation and Policy Implications” discusses the latest inflation data, noting the easing of both retail and wholesale inflation, largely driven by a contraction in vegetable and pulse prices.

Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024

Attend Now

Foreign Policy Watch: India-Pakistan

[15th May 2025] The Hindu Op-ed: Operation Sindoor — a reshaping of confrontation

PYQ Relevance:

[UPSC 2021] How is S-400 air defence missile system different from any other system presently available in the world?

Linkage: Air defence systems are vital in modern warfare like Operation Sindoor for controlling the skies and protecting against enemy air strikes, including missiles.  

 

Mentor’s Comment: Operation Sindoor is no longer just a conflict between two countries. It shows how wars are now fought around the world, with new technology, smart strategies, and control of information changing the way military battles happen.

Today’s editorial explains how Operation Sindoor has changed the way military conflicts happen. This information is useful for preparing GS Paper II (International Relations) and GS Paper III (Defence).

_

Let’s learn!

Why in the News?

The recent India-Pakistan standoff shows an important change in how wars are fought in today’s world.

How has Operation Sindoor reshaped the nature of military confrontation?

  • Unmanned Aerial Vehicles (UAVs)/Drones: India used SkyStriker Kamikaze drones for precision strikes, while Pakistan deployed 300–400 Turkish-made Songar drones across 36 locations, marking a shift to unmanned, low-risk, and high-impact warfare.
  • Swarm Drone Technology: The large-scale use of drone swarms by Pakistan showcased how mass deployment of inexpensive, expendable drones can overwhelm enemy defences and replace traditional air force formations.
  • Layered Air Defence Systems: India’s defence relied on a combination of Akash, QRSAM, S-400 (Russia), and Barak-8 (India-Israel) systems, reflecting a transition from fixed missile platforms to multi-layered, dynamic defence networks.
  • Real-time Digital Integration Systems: The Akashteer system allowed India to digitally integrate radar inputs for real-time threat assessment and response, enabling smarter and quicker decision-making in combat.
  • Integrated Air Command and Control System (IACCS): IACCS enabled seamless coordination between the Army, Navy, and Air Force, turning joint operations from theory into an operational reality and enhancing battlefield synchronization.

How have drones transformed India’s aerial warfare strategy?

  • Unmanned Combat: India has shifted from relying on costly manned fighter jets to using drones, enabling precision strikes with minimal risk to personnel. Eg: Deployment of SkyStriker Kamikaze drones for targeted attacks during Operation Sindoor.
  • Swarm Warfare: The ability to deploy large numbers of inexpensive drones allows India to overwhelm enemy defences through swarm tactics, increasing operational effectiveness. Eg: Use of multiple expendable drones to saturate Pakistan’s air defence systems.
  • Intelligence and Precision: Drones provide real-time reconnaissance and intelligence gathering, improving accuracy and reducing collateral damage in strikes. Eg: SkyStriker drones probing Pakistan’s air defence and conducting precise strikes with minimal human risk.

Why is information warfare crucial in the India-Pakistan standoff?

  • Strategic Weapon Beyond Propaganda: Information warfare has evolved from mere propaganda to a powerful strategic tool that can influence perceptions and morale. Eg: Pakistan circulated doctored videos and fabricated claims to manipulate international and domestic opinions.
  • Psychological Impact on Morale: It aims to weaken the enemy’s resolve by creating confusion, fear, and doubt among both military personnel and civilians. Eg: Disinformation campaigns targeting India’s morale during the standoff.
  • Control of Narratives: Controlling information flow helps shape global and domestic narratives, influencing diplomatic support and international response. Eg: Both India and Pakistan using social media to project their respective versions of events.
  • Creation of Strategic Ambiguity: Manipulating information can create uncertainty and complicate the opponent’s decision-making process. Eg: Use of conflicting reports and misinformation to keep adversaries guessing about actual military capabilities and intentions.

What are the three key doctrines outlined by the Prime Minister in his first speech on Operation Sindoor?

  1. Decisive Retaliation on India’s Terms: India will respond firmly and appropriately to any terrorist attack, delivering a befitting response strictly on its terms and taking action against all sources of terrorism.
  2. No Tolerance for Nuclear Blackmail: India will not tolerate nuclear blackmail and will strike precisely and decisively at terrorist hideouts operating under the shield of nuclear threats.
  3. No Distinction Between Terrorists and their Sponsors: India will treat the government sponsoring terrorism and the terrorist masterminds as the same, continuing decisive steps to counter state-sponsored terrorism and protect the nation.

Way forward: 

  • Enhance Indigenous Innovation: Accelerate the development and deployment of homegrown advanced technologies like AI-enabled drone swarms, next-gen air defence, and electronic warfare to maintain a strategic edge over Chinese-origin systems.
  • Strengthen Joint Operations & Intelligence Sharing: Improve seamless integration among armed forces and boost real-time intelligence to swiftly counter emerging threats from adversaries using sophisticated foreign defence platforms.

Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024

Attend Now

Police Reforms – SC directives, NPC, other committees reports

Principled Criminalization and the Police as Pivot

Why in the News?

Recently, the Supreme Court of India gave an important decision in the case of Imran Pratapgarhi v. State of Gujarat (2025 INSC 410). The judgment focused on balancing the fundamental right to freedom of speech with the police’s duty to register a First Information Report (FIR).

What is the significance of procedural criminal law in ensuring principled criminalisation?

  • Prevents Abuse of Power: Procedural criminal law enforces checks on state power by ensuring investigations, arrests, and prosecutions follow due process and protect fundamental rights (e.g., right to life and liberty under Article 21 of the Indian Constitution). Eg: In Imran Pratapgarhi vs State of Gujarat, the Supreme Court quashed the FIR because the police violated the procedural requirement under Section 173(3) of BNSS, thereby infringing upon the right to free speech.
  • Filters Out Malicious Prosecutions: By setting guidelines (like preliminary inquiries), procedural law prevents unnecessary or politically motivated criminal cases from being registered and escalating into full investigations or arrests. Eg: Section 173(3) allows police to conduct a 14-day preliminary inquiry in certain cases before registering an FIR, thereby avoiding the criminalisation of non-serious or false complaints.
  • Enhances Accountability: Police have significant discretion in the criminal process. Procedural law regulates this discretion, ensuring it is used transparently and fairly, preventing arbitrary or biased action. Eg: Without proper procedural checks, police may over-police minor infractions while ignoring more serious offences, leading to imbalanced enforcement of law.

Why did the Supreme Court quash the FIR against Imran Pratapgarhi?

  • Violation of Procedural Safeguards: The police failed to conduct a mandatory preliminary inquiry before registering an FIR, as required under Section 173(3) for offences punishable with less than seven years. Eg: The alleged offence related to a poem posted on social media, which falls within this category. The police were required to first assess whether a prima facie case existed — they did not.
  • Protection of Freedom of Speech: The FIR was filed for the alleged posting of an “inflammatory” poem, but the Court noted it was an exercise of free speech under Article 19(1)(a) of the Constitution. Eg: Criminal proceedings against protected speech must pass a higher threshold. The Court emphasized that misuse of law to curb free expression violates constitutional freedoms.
  • Prevention from Frivolous Criminalisation: The Court found that the police had acted in a hasty and unjustified manner, triggering criminal law machinery for what could be a frivolous or politically motivated complaint. Eg: The judgment cited the intent of Section 173(3) — to avoid over-criminalisation in cases involving less serious offences, especially those entangled with fundamental rights.

How does Section 173(3) of the Bharatiya Nagarik Suraksha Sanhita aim to prevent unnecessary criminalisation?

  • Section 173(3) of the Bharatiya Nagarik Suraksha Sanhita (BNSS) aims to prevent unnecessary criminalisation by allowing police to conduct a preliminary inquiry within 14 days before registering an FIR for cognisable offences punishable with 3 to less than 7 years.
  • This ensures that only cases with prima facie merit proceed, acting as a safeguard against frivolous or politically motivated complaints and police overreach.

Who plays a central role in the actual implementation of criminalisation?

  • The police play the central role in the practical application of criminalisation. They are the first responders—detecting crime, registering FIRs, investigating, and arresting suspects.
  • The discretion exercised by the police significantly affects how criminal laws are enforced, and whether they lead to over-criminalisation or under-criminalisation. Therefore, how the police interpret and act under procedural law (e.g., Section 173(3)) directly influences the legitimacy and fairness of the criminal justice system.

Way forward: 

  • Strengthen Police Training and Accountability: Enhance training on procedural law and human rights for police to ensure responsible use of discretion, coupled with strict accountability mechanisms to prevent misuse and overreach.
  • Improve Legal Safeguards and Oversight: Institutionalise mandatory preliminary inquiries and judicial oversight in sensitive cases to protect fundamental rights and prevent frivolous or politically motivated criminalisation.

Mains PYQ:

[UPSC 2013] Discuss Section 66A of IT Act, with reference to its alleged violation of Article 19 of the Constitution.

Linkage: This reflects the broader theme of how laws that define behaviour as potentially punishable (part of the criminalisation process) are scrutinised based on their impact on fundamental rights, a dynamic echoed in the article discussion of the Imran Pratapgarhi case where police action (governed by procedural law) affecting freedom of speech was reviewed by the Supreme Court.

Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024

Attend Now

Genetically Modified (GM) crops – cotton, mustards, etc.

How did India develop genome edited rice?

Why in the News?

Union Agriculture Minister Shivraj Singh Chouhan recently said that India is the first country in the world to create rice varieties using genome editing technology.

What are the new varieties?

A team of researchers from different institutions, led by the Indian Council of Agricultural Research (ICAR), developed two new rice varieties — DRR Dhan 100 (called Kamala), made from the high-yielding Samba Mahsuri rice, and Pusa DST Rice 1, made from the Maruteru 1010 (MTU1010) variety.

What are the benefits of the new rice varieties Kamala and Pusa DST Rice 1?

  • Higher Yield: Both varieties produce more rice per hectare than their parent strains. Eg: Kamala yields 5.37 tonnes/ha vs. Samba Mahsuri’s 4.5 tonnes/ha; Pusa DST Rice 1 yields 3,508 kg/ha, which is 9.66% more than MTU1010’s 3,199 kg/ha.
  • Drought Tolerance: Kamala is more resilient to drought, ensuring stable harvests during water shortages. Eg: Farmers can harvest good crops with less water in drought-prone areas using Kamala.
  • Early Maturity: Kamala matures 20 days earlier, reducing resource use and allowing faster crop cycles. Eg: Early harvest saves water and fertilizer, enabling farmers to grow a second crop sooner.
  • Salinity and Alkalinity Resistance: Pusa DST Rice 1 tolerates coastal salinity and alkaline soils better than its parent, boosting yield in tough environments. Eg: It yields 30.4% more under coastal salinity and 14.66% more under alkalinity than MTU1010.
  • Reduced Environmental Impact: Early maturity of Kamala lowers methane emissions from rice fields, helping fight climate change. Eg: Shorter growing period means less methane released compared to traditional rice varieties.

Why are there objections to the genome-edited rice varieties?

  • Lack of Transparency: There is concern that the genome-edited rice varieties were announced without adequate field-level data being shared publicly, making the scientific claims appear premature. Eg: Venugopal Badaravada, a former ICAR governing body member, criticized the lack of transparency and was later expelled, raising concerns about institutional accountability.
  • Regulatory Concerns: Critics argue that exempting genome-edited crops (especially SDN-1 and SDN-2) from GM regulations is legally questionable and may bypass biosafety evaluations. Eg: The Coalition for a GM-Free India stated that de-regulating gene editing is “outright illegal” under India’s current biosafety framework.
  • Seed Sovereignty and Intellectual Property Rights (IPR): Activists fear that the gene-editing tools used are patented, which could threaten farmers’ seed rights and give control to private corporations. Eg: Concerns were raised about IPR entanglements with the technologies used in Kamala and Pusa DST Rice 1, potentially compromising India’s food and seed sovereignty.

When will the new rice seeds be available for farmers?

The Indian Council of Agricultural Research (ICAR) anticipates that certified seeds of these varieties will be available to farmers within two years, following the completion of necessary processes such as Intellectual Property Rights (IPR) registration and seed multiplication.

Way forward: 

  • Ensure Transparent Evaluation: Conduct multi-location field trials and publicly share performance data to build scientific credibility and public trust.
  • Safeguard Farmer Rights and Regulatory Oversight: Develop a clear IPR policy and establish robust, independent biosafety review mechanisms to protect seed sovereignty and address legal concerns.

Mains PYQ:

[UPSC 2020] In what way have the science-based technologies triggered off striking changes in agriculture?

Linkage: Genome editing is a science-based technology that represents a significant advancement capable of triggering changes in agriculture by developing improved crop varieties.

Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024

Attend Now

Solar Energy – JNNSM, Solar Cities, Solar Pumps, etc.

India eases Solar Panel Efficiency Norms for Off-Grid Rural Projects

Why in the News?

The Ministry of New and Renewable Energy (MNRE) has lowered the efficiency requirement for off-grid solar panels to make rural electrification easier and more affordable.

About India’s Off-Grid Solar Programme:

  • About: The programme was launched by the Ministry of New and Renewable Energy to provide solar energy access in regions without reliable grid electricity.
  • Mission Framework: Implemented under the National Solar Mission (2010), it aimed to install 2,000 megawatt-peak (MW-P) of off-grid and decentralised systems by 2022.
  • Phased Implementation:
    1. Phase I (2010–2014) targeted 200 MW-P capacity.
    2. Phase II (2014–2017) expanded to 500 MW-P with a focus on lighting, pumps, and study lamps.
    3. Phase III (2018–2021) emphasised solar streetlights, study lamps, and solar plants for public institutions.
  • Restructuring: Solar pumps were moved to the Pradhan Mantri Kisan Urja Suraksha evam Utthaan Mahabhiyan scheme (PM-KUSUM), and solar home lights were integrated into the Saubhagya Scheme.
  • Key Applications: Included solar home lighting systems, streetlights, lanterns, study lamps, power packs, and water pumps for irrigation and drinking.

India’s Progress in Off-Grid Solar Energy:

  • Installed Capacity: As of April 2025, India’s total solar capacity reached 107.95 gigawatts, with 4.98 gigawatts from off-grid systems.
  • Capacity Growth: From 2016 to 2024, solar installations grew from 172.45 gigawatts to 216.86 gigawatts.
  • Recent Trends: In 2024, adoption rose as solar appliances became more affordable in remote and underserved regions.
  • Impact: The programme has been vital for electrification in areas where grid expansion is limited by geography, cost, or infrastructure.

Tap to know more about India’s Solar Capacity and its Global Position.

[UPSC 2020] With reference to solar water pumps, consider the following statements:

1. Solar power can be used for running surface pumps and not for submersible pumps.

2. Solar power can be used for running centrifugal pumps and not the ones with piston.

Which of the statements given above is/are correct?

Options: (a) 1 only (b) 2 only (c) Both 1 and 2 (d) Neither 1 nor 2*

 

Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024

Attend Now

Labour, Jobs and Employment – Harmonization of labour laws, gender gap, unemployment, etc.

[pib] Changes in Periodic Labour Force Survey (PLFS) from 2025

Why in the News?

The Ministry of Statistics and Programme Implementation (MoSPI) has announced major changes to the Periodic Labour Force Survey (PLFS).

About Periodic Labour Force Survey (PLFS):

  • Purpose: To measure employment and unemployment nationwide.
  • Conducted by: National Statistical Office (NSO) under the MoSPI, it has been active since 2017.
  • Estimate 3 core indicators: Labour Force Participation Rate (LFPR), Worker Population Ratio (WPR), and Unemployment Rate (UR).
  • Frequency: It provides Quarterly estimates for Urban areas and Annual estimates for both Rural and Urban areas.
  • Methodology: Employment is measured using 2 reference periods — Usual Status (activity in the last 365 days) and Current Weekly Status (activity in the last 7 days).
Note:

  • Labour Force Participation Rate (LFPR): It is defined as the percentage of persons in labour force (i.e. working or seeking or available for work) in the population.
  • Worker Population Ratio (WPR): It is defined as the percentage of employed persons in the population.
  • Unemployment Rate (UR): It is defined as the percentage of persons unemployed among the persons in the labour force.
[UPSC 2022] In India, which one of the following compiles information on industrial disputes, closures, retrenchments and lay-offs in factories employing workers?

Options: (a) Central Statistics Office (b) Department for Promotion of Industry and Internal Trade (c) Labour Bureau * (d) National Technical Manpower Information System

 

Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024

Attend Now

Innovations in Sciences, IT, Computers, Robotics and Nanotechnology

Scientists at CERN Create Gold from Lead

Why in the News?

In a recent breakthrough at CERN’s ALICE (A Large Ion Collider Experiment), scientists observed that near-collisions of lead ions in the Large Hadron Collider (LHC) can result in the formation of gold atoms and other novel nuclei.

How was Lead converted into Gold?

  • In ultra-peripheral collisions at the Large Hadron Collider, lead atoms passed close without touching, creating strong electromagnetic fields.
  • These fields released photons that caused some lead atoms to lose 3 protons and 2 neutrons, transforming them into gold-203.
  • Between 2015–2018, 86 billion gold atoms were created—just 29 picograms—scientifically important but not commercially valuable.

About the Large Hadron Collider (LHC):

  • The LHC has been working since September 2008 and is the world’s largest particle accelerator.
  • Development: Between 1998 and 2008 in collaboration with over 10,000 scientists, and hundreds of universities and laboratories across more than 100 countries.
  • Location: It lies in a 27-kilometre tunnel under the France–Switzerland border, near Geneva, and is operated by CERN.
  • Purpose: It smashes protons or lead atoms together to help scientists study the smallest building blocks of the universe.
  • Working Mechanism: About 9,600 magnets guide particles in a circle using strong magnetic fields.
  • Speed: Particles travel at 99.999999% the speed of light, creating conditions like the Big Bang.
  • Particles Studied: The LHC focuses on quarks (which come in six types) and gluons, which hold quarks together using the strong nuclear force.
  • Members: 24 countries spans across the Europe. Japan and US are Observer.
  • India and LHC: 
    • India signed a cooperation agreement with CERN in 1991 and joined its Large Hadron Collider project in 1996; it became an Associate Member in 2016 after gaining Observer status in 2002.
    • India also helped design LHC components such as superconducting magnets, cryogenic systems, and accelerator protection systems.

About the ALICE Experiment:

  • ALICE is designed to study heavy-ion collisions, mainly using lead atoms.
  • Objective: It recreates matter similar to that formed just after the Big Bang, helping us understand the early universe.
  • Detection Range: ALICE can study both large particle blasts and rare, low-energy events with high precision.
  • Size and Setup: It weighs 10,000 tons, measures 26 × 16 × 16 metres, and sits 56 metres underground.
  • Members: As of 2024, ALICE includes over 1,900 scientists from 174 institutes across 39 countries, including India.
  • India’s Contribution: Key instruments like the Photon Multiplicity Detector for ALICE and the Hadron Outer Calorimeter for CMS.

 

[UPSC 2009] In the year 2008, which one of the following conducted a complex scientific experiment in which sub-atomic particles were accelerated to nearly the speed of light?

Options: (a) European Space Agency (b) European Organization for Nuclear Research* (c) International Atomic Energy Agency (d) National Aeronautics and Space administration

 

Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024

Attend Now

Judicial Appointments Conundrum Post-NJAC Verdict

Justice B.R. Gavai takes charge as 52nd CJI

Why in the News?

Justice B.R. Gavai has been sworn in as the 52nd Chief Justice of India (CJI).

About the Chief Justice of India:

  • The CJI is the head of the Supreme Court and the highest-ranking judicial officer in the country.
  • As the “Master of the Roster,” the CJI has the exclusive authority to:
    • Constitute benches
    • Allocate cases among judges
    • Decide the schedule of hearings
  • The CJI leads the judicial and administrative functions of the Supreme Court.
    • Holds administrative control as recognised in State of Rajasthan v. Prakash Chand (1997).
  • The CJI is referred to as “first among equals” among Supreme Court judges.

Powers and functions of the CJI:

  • Judicial Functions:
    • Assigns judges to the Constitution Benches. (Article 145)
    • Handles interpretation of important legal and constitutional matters. (Article 145)
    • Exercises judicial leadership by steering jurisprudential direction. (Article 145)
    • Exercises judicial authority in matters of national significance. (Article 136)
    • Protects fundamental rights through the Supreme Court’s original and appellate jurisdiction. (Article 32)
  • Administrative Functions:
    • Maintains court roster and case listing. (Derived from judicial precedent and administrative conventions)
    • Supervises court staff and administration. (Based on administrative authority of the CJI)
    • Ensures smooth functioning of the Supreme Court. (Supreme Court Rules, 2013)
    • Holds disciplinary authority over subordinate judicial officers. (Administrative powers acknowledged in precedents)
    • Engages in administration of justice at the highest level. (Overarching responsibility under Article 145)
  • Advisory Function:
    • Provides advisory input when consulted by the President. (Article 143)

Appointment and Terms:

  • Article 124 of the Constitution empowers the President of India to appoint the CJI.
  • Traditionally, the senior-most judge of the Supreme Court is appointed.
  • Exceptions to this practice:
    • 1973: Justice A.N. Ray appointed over 3 senior judges.
    • 1977: Justice M.H. Beg appointed over Justice H.R. Khanna.
  • Qualifications as outlined in Article 124(3):
    • Must be a citizen of India, and:
    • Served at least five years as a High Court judge, or
    • Practised at least ten years as a High Court advocate, or
    • Deemed a distinguished jurist by the President.

Selection Procedure:

  • Governed by the Memorandum of Procedure for Appointment of Supreme Court Judges.
  • The Union Law Minister seeks the outgoing CJI’s recommendation.
  • The recommendation is processed as follows:
    • Sent to the Prime Minister by the Law Ministry.
    • Prime Minister advises the President.
    • President of India appoints the new CJI.
  • No specific timeline is defined — the recommendation must be made at the “appropriate time”.

Tenure and Removal:

  • CJI serves until the age of 65 years.
  • Can only be removed through removal under Article 124(4):
    • Requires approval by both Houses of Parliament.
    • Must be supported by:
      • A majority of total membership, and
      • A two-thirds majority of members present and voting.
    • Grounds for removal: Proven misbehavior or incapacity.
[UPSC 2021] With reference to the Indian judiciary, consider the following statements:

  1. Any retired judge of the Supreme Court of India can be called back to sit and act as a Supreme Court judge by the Chief Justice of India with the prior permission of the President of India.
  2. A High Court in India has the power to review its own judgment as the Supreme Court does

Which of the statements given above is/are correct?

Options:  (a) 1 only  (b) 2 only (c) Both 1 and 2 * (d) Neither I nor 2

 

Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024

Attend Now

[14th May 2025] The Hindu Op-ed: Ecology is the world’s permanent economy

PYQ Relevance:

[UPSC 2024] The groundwater potential of the gangetic valley is on a serious decline. How may it affect the food security of India?

Linkage: The concept that ecological health (groundwater levels) is fundamental to human survival and security (food security). It highlights how the depletion of a natural resource affects a critical aspect of the economy and human well-being, demonstrating the link between ecology and a “permanent economy” that sustains life.

Mentor’s Comment: The phrase “Ecology is the permanent economy” means much more than just a catchy line. It reminds us of a basic truth: human well-being depends on the health of nature. We cannot grow our economy without using natural resources, and we cannot keep our economy stable without protecting them. Today, as we face big problems like climate change and loss of wildlife, we need to seriously think about whether we truly understand and follow this idea.

Today’s editorial discusses the idea that “Ecology is the permanent economy”. This topic is useful for GS Paper III in the UPSC Mains Exam, especially for questions related to the economy and environment.

_

Let’s learn!

Why in the News?

Understanding the idea that “Ecology is the permanent economy” will help us see that a healthy environment is essential for our survival, a strong economy, and protection against climate change.

What does the phrase “Ecology is the permanent economy” signify in relation to human prosperity and ecological health?

  • Foundation of Human Survival and Economy: Ecology provides essential resources like air, water, food, and fertile soil — the base of all economic activity. Eg: Agriculture depends on healthy soil, pollinators, and water cycles. Degraded ecosystems lead to crop failures and food insecurity.
  • Long-term Economic Stability Requires Ecological Balance: Sustainable use of natural resources ensures continued economic benefits without exhausting the environment. Eg: Overfishing depletes fish stocks, harming both marine biodiversity and the fishing industry. Conservation efforts like fishing quotas help restore balance and maintain livelihoods.
  • Ecological Health Mitigates Climate and Disaster Risks: Ecosystems act as buffers against natural disasters and climate change impacts, protecting both lives and infrastructure. Eg: Mangroves protect coastal areas from storms and floods. Their destruction increases disaster vulnerability and economic loss.

How has human evolution led to a disconnection from nature?

  • Shift from Nomadic to Settled Life: Early humans lived in close contact with nature, relying on it for daily survival. With agriculture and settlements, dependency became indirect. Eg: Nomads hunted and gathered in forests, while modern societies buy packaged food, unaware of its natural source.
  • Urbanisation and Infrastructure Development: Rapid urban growth has replaced natural landscapes with concrete, isolating people from natural surroundings. Eg: Children growing up in cities often have limited exposure to forests, rivers, or wildlife.
  • Technological Advancements: Machines, internet, and artificial environments have reduced daily interaction with the natural world. Eg: Air conditioning replaces the need to adapt to seasons; virtual reality replaces outdoor experiences.
  • Consumerism and Resource Overuse: The pursuit of material comfort leads to overexploitation of nature without regard for ecological balance. Eg: Excessive mining or deforestation for products like electronics or furniture disrupts ecosystems.
  • Loss of Traditional Knowledge and Practices: Indigenous ecological wisdom is being lost as modern lifestyles dominate, weakening the cultural connection to nature. Eg: Practices like rainwater harvesting or sacred groves are being forgotten in many regions.

What impact has this had on biodiversity?

  • Habitat Destruction: Expansion of urban areas, agriculture, and infrastructure has led to large-scale loss of natural habitats. Eg: Deforestation in the Amazon rainforest has destroyed habitats for countless species, pushing many toward extinction.
  • Species Extinction: Disruption of ecosystems and overexploitation of species has accelerated extinction rates. Eg: The dodo bird and the western black rhinoceros became extinct due to hunting and habitat loss.
  • Invasive Species Introduction: Human activities have introduced non-native species that outcompete or prey on native species. Eg: Introduction of Nile perch in Lake Victoria led to the decline of hundreds of native fish species.
  • Pollution and Climate Change: Industrial waste, plastic pollution, and greenhouse gas emissions degrade ecosystems and affect species survival. Eg: Coral bleaching caused by ocean warming has severely damaged coral reef biodiversity.
  • Disruption of Natural Cycles: Unsustainable development alters food chains, migration patterns, and breeding cycles. Eg: Light pollution in cities affects nocturnal species like sea turtles, which rely on natural darkness for nesting.

Why is balancing environmental protection and economic development crucial for long-term sustainability?

  • Ensures Resource Availability for Future Generations: Overexploitation today can lead to resource depletion, affecting future livelihoods. Eg: Sustainable forestry in countries like Sweden ensures timber is harvested without degrading forests.
  • Prevents Environmental Degradation: Economic development without ecological concern leads to pollution, soil erosion, and climate change. Eg: Unchecked industrialisation along the Ganga River caused severe water pollution, harming both people and biodiversity.
  • Supports Climate Resilience: Ecosystem protection helps buffer against climate impacts like floods, droughts, and heatwaves. Eg: Mangrove conservation in the Sundarbans protects coastal areas from cyclones and sea-level rise.
  • Boosts Green Economic Opportunities: Investing in renewables and green technology creates jobs while reducing emissions. Eg: India’s solar energy mission has generated employment and reduced dependency on fossil fuels.
  • Promotes Health and Well-being: A clean environment ensures access to clean air, water, and food, essential for human health. Eg: Delhi’s vehicular emission controls aim to reduce air pollution, improving public health outcomes.

What paradox arises from relying on nature-based solutions while continuing to exploit natural resources?

  • Dual Dependence Creates Contradiction: We expect ecosystems to mitigate climate change while simultaneously degrading them through deforestation and pollution. Eg: Planting trees for carbon offset while clearing rainforests for agriculture defeats the purpose.
  • Undermines Long-Term Effectiveness: Continuous exploitation weakens the very systems relied upon for climate resilience and biodiversity restoration. Eg: Wetlands restoration projects fail when nearby urban expansion continues to encroach on wetland areas.
  • Ecological Imbalance Intensifies: The more we harm natural systems, the less capable they become in acting as buffers against environmental crises. Eg: Overfishing damages marine ecosystems, reducing their ability to regulate carbon and support livelihoods.

What are the steps taken by the Indian government? 

Way forward: 

  • Integrate Ecology into Economic Planning: Make environmental sustainability a core part of all development policies to ensure long-term resource security and resilience.
  • Promote Community-Led Conservation: Empower local communities with incentives and rights to manage natural resources, ensuring inclusive and effective environmental protection.

Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024

Attend Now

Trade Sector Updates – Falling Exports, TIES, MEIS, Foreign Trade Policy, etc.

Big deal: On the U.S.-China trade deal

Why in the News?

Recently, the U.S. has agreed to temporarily reduce its tariffs on Chinese goods from 145% to 30% for 90 days, while China will lower its tariffs on American products from 125% to 10%.

What are the key terms of the U.S.-China trade truce?

  • Tariff Reductions: The U.S. has temporarily lowered tariffs on Chinese goods from 145% to 30%, and China has reduced its duties on American imports from 125% to 10%.
  • 90-day Breather: The reprieve is limited to 90 days, giving both sides a window for further negotiations.
  • Global Market Response: The announcement led to a 2%-3.8% rise in markets worldwide, reflecting investor relief.
  • Exclusion from Previous Pause: Earlier, in April, the U.S. had excluded China from a 90-day reciprocal tariff pause, indicating that this thaw represents a strategic pivot.

Why has the U.S. trade deficit with China remained unresolved despite the tariff rollback?

  • Temporary and Limited Rollback of Tariffs: The U.S. reduced tariffs from 145% to 30% only for 90 days, which is not a permanent structural solution. Eg: Such short-term measures may ease tensions but do not address long-term trade imbalances rooted in production and consumption patterns.
  • Core Issue of Trade Imbalance Not Addressed: The agreement focuses on reducing tariffs but does not compel China to increase imports of U.S. goods or alter its export-driven model. Eg: The U.S. continues to import large volumes of electronics, machinery, and pharmaceuticals from China while exporting relatively fewer goods.

How might the U.S.-China agreement affect India’s position in the China+1 manufacturing strategy?

  • Reduced Urgency for Diversification: The easing of tensions may lead global firms to reconsider shifting away from China, reducing momentum behind the China+1 strategy. Eg: Companies that were exploring alternatives like India or Vietnam may delay or reverse their relocation plans.
  • India’s Limited Gains from China+1 Exposed: India has not fully leveraged the China+1 opportunity due to infrastructure and policy bottlenecks, making it less competitive. Eg: Despite global supply chain shifts during the trade war, India attracted far less investment than Vietnam or Indonesia in electronics and apparel sectors.
  • Renewed Focus on China’s Scale and Efficiency: Investors might return to China due to its unmatched manufacturing scale, efficient logistics, and mature supply chains. Eg: Apple’s decision to continue manufacturing a large share of its products in China despite exploring India illustrates the challenge India faces in replacing China.
Note: China+1 is a business strategy adopted by multinational companies to diversify their manufacturing operations and supply chains beyond China, by adding at least one other country—hence “China plus one”.

What challenges does India face in its trade negotiations with the U.S.?

  • Retaliatory Tariff Pressures: India has had to respond to U.S. tariff hikes on steel and aluminium with potential reciprocal measures, increasing trade tension. Eg: After the U.S. imposed duties under Section 232, India notified the WTO of its plan to raise tariffs on American products like almonds and apples.
  • Pending Comprehensive Trade Agreement: Despite ongoing talks, both countries have struggled to finalize a broad-based trade deal due to divergent priorities and domestic pressures. Eg: Disagreements over market access for U.S. dairy products and medical devices have repeatedly stalled progress on a bilateral trade pact.
  • Impact of U.S.-China Trade Developments: A thaw in U.S.-China trade ties may reduce Washington’s interest in deepening trade relations with India, limiting India’s leverage. Eg: If U.S. firms regain confidence in China post-agreement, India may lose the strategic advantage it gained during earlier trade disruptions.

Why must Indian States implement labour and land reforms to reduce dependence on Chinese imports?

What are the steps taken by the Indian government? 

  • Labour Law Reforms to Boost Ease of Doing Business: The Indian government has amended labour laws to make it easier for industries to hire and fire workers, fostering a more flexible labour market. Eg: The Code on Industrial Relations (2020) consolidates multiple labour laws and provides greater flexibility for businesses to operate efficiently.
  • Land Acquisition and Infrastructure Development: The government has streamlined land acquisition processes and enhanced infrastructure to attract investments in manufacturing. Eg: The National Industrial Corridor Development Corporation (NICDC) is developing dedicated industrial zones with improved connectivity and land acquisition processes to boost manufacturing.

Way forward: 

  • Enhance Policy Frameworks: India should strengthen its infrastructure, labor, and land reforms to offer a more competitive and attractive environment for global companies, ensuring it can capitalize on the China+1 strategy.
  • Focus on Technology and Skill Development: India must invest in advanced manufacturing technologies and skill development to match China’s scale and efficiency, thus making itself a more viable alternative for global supply chains.

Mains PYQ:

[UPSC 2018] How would the recent phenomena of protectionism and currency manipulations in world trade affect macroeconomic stability of India?

Linkage: The US-China trade deal, as described in the article arose from a “tense global trade environment” involving “tariffs being ratcheted up by both sides”. This context of rising protectionism and trade tensions between major powers directly relates to the “phenomena of protectionism” mentioned in this PYQ and its potential impact on India’s macroeconomic stability.

Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024

Attend Now

JOIN THE COMMUNITY

Join us across Social Media platforms.

💥UPSC 2026, 2027 UAP Mentorship - June Batch Starts
💥UPSC 2026, 2027 UAP Mentorship - June Batch Starts