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  • MIT Research of Ionic Liquids (ILs)

    Why in the News?

    MIT-led research suggests life may not need liquid water; ionic liquids (salts that stay liquid below 100°C) could support life on rocky super-Earths with volcanic activity and little water.

    About Ionic Liquids (ILs):

    • Overview: Salts in liquid form below 100°C, composed entirely of ions.
    • Properties: Non-volatile, non-flammable, thermally stable, and tunable as hydrophobic or hydrophilic.
    • Structure: Unlike water (neutral molecules), ILs consist of ions and ion pairs.
    • Electrochemical Use: Excellent electrolytes with broad electrochemical windows.
    • Applications: Used in synthesis, catalysis, electrochemistry, extraction, biotechnology, and as green alternatives to volatile solvents.

    Breakthrough Findings of MIT Study:

    • Life Without Water: Experiments showed life could potentially survive using ILs as solvents instead of water.
    • Natural Formation: Sulfuric acid mixed with nitrogen compounds can naturally form ILs.
    • Exoplanet Link: Such ILs may exist on rocky super-Earths with volcanic activity and thin atmospheres.
    • Venus Research Origin: Discovery emerged from studying Venus, where sulfuric acid clouds interact with organic molecules to form ILs.
    • Biological Relevance: ILs can provide stable environments for biomolecules, supporting metabolism.

    Significance of the Study:

    • Habitability Expansion: Broadens habitability definition beyond water-based models.
    • Biosignatures: Suggests new chemical markers for exoplanet life detection.
    • Venus Missions: Strengthens rationale for Venus’s exploration targeting IL-based chemistry.
    • Wider Habitable Zones: Implies more planets could host life than previously thought.
    [UPSC 2015] The term ‘Goldilocks Zone’ is often seen in the news in the context of:

    (a) the limits of habitable zone above the surface of the Earth

    (b) regions inside the Earth where shale gas is available

    (c) search for the Earth-like planets in outer space*

    (d) search for meteorites containing precious metals

     

  • Supreme Court interventions in Civil–Criminal overlap Cases

    Why in the News?

    In August 2025, the Supreme Court intervened twice to prevent the misuse of criminal proceedings in essentially civil disputes.

    About Civil and Criminal Cases:

    • Civil cases involve disputes between individuals or organisations and are mostly governed by Code of Civil Procedure, 1908 (CPC). The aim is to resolve rights and duties, usually through compensation (damages) or injunctions. Examples: property disputes, contract breaches, divorce, custody, money recovery.
    • Criminal cases involve offences against the state or society. The objective is punishment and deterrence. Initiated by the state prosecutor. Examples: theft, cheating, assault, murder.
    • Burden of proof:
      • Civil cases: Decided on a preponderance of probabilities (more likely than not).
      • Criminal cases: Guilt must be proven beyond reasonable doubt.
    • Dual Cases: Some acts can give rise to both civil and criminal liability. For dual proceedings, there must be proof of criminal intent before entering the commercial or personal relationship.
    • Timelines: Data from the National Judicial Data Grid (2025) shows civil cases are slower (avg. 4.91 years) compared to many criminal cases (70% disposed within a year).

    Recent Supreme Court Actions:

    • Rajasthan plywood dispute case (Aug 13, 2025): SC held there was no criminal breach of trust in a simple sale transaction. Denial of pre-arrest bail by the High Court was overturned.
    • Allahabad HC case (Aug 4, 2025): SC criticised a judge for allowing criminal proceedings in a business transaction dispute, calling it a “mockery of justice”. The judge was temporarily barred from handling criminal cases, later reinstated after CJI intervention.
      • The SC clarified that civil disputes cannot be turned into criminal prosecutions unless fraud or criminal intent is clearly shown.
    [UPSC 2016] With reference to the ‘Gram Nyayalaya Act’, which of the following statements is/are correct?

    1. As per the Act, Gram Nyayalayas can hear only civil cases and not criminal cases.

    2. The Act allows local social activists as mediators/reconciliators.

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

     

  • In news: British Conquest of Sindh

    Why in the News?

    The British conquest of Sindh in the 1840s was a key step in colonial expansion, reminding us that regions like Sindh, Punjab, and Bengal came under British rule long before the 1947 partition of India and Pakistan.

    British Conquest of Sindh:

    • Sindh was annexed by the British in 1843 after the battles of Miani and Dubbo.
    • The resistance was led by Hosh Muhammad Sheedi, a general of the Talpur army and member of the African-origin Siddi community.
    • His defiance symbolised the first major armed resistance to British expansion in northwest India.

    Political Background in Sindh:

    • Kalhora Dynasty (1701–1779): Founded by Mian Yar Muhammad Kalhoro, recognised by Mughals; ruled northern and central Sindh. Prosperous period but weakened by internal disputes.
    • Talpur Dynasty (1779–1843): Baloch Talpurs overthrew Kalhoras; consolidated Sindh under clan rule at Hyderabad and Khairpur.
    • Geopolitical Context: Sindh lay at the crossroads of British–French–Russian rivalry (The Great Game). Britain feared Russian advances through Iran and Afghanistan.
    • British Entry: East India Company forced treaties on Talpurs; captured Karachi (1839) after bombarding Manora fort.

    British Advance and the Fall of Sindh:

    • Battle of Miani (17 Feb 1843): British under Sir Charles Napier defeated Mir Nasir Khan Talpur near Hyderabad.
    • Battle of Dubbo (24 Mar 1843): Hosh Muhammad Sheedi allied with Mir Sher Muhammad Talpur of Mirpur Khas. Sheedi raised the war cry “Marvesoon par Sindh na desoon” (I may die but will not give up Sindh). He was killed in action.
    • British Annexation: After Dubbo, Sindh was annexed into the Bombay Presidency. Talpur rule ended.
    • Aftermath: Within a decade, Punjab too was annexed (1849), bringing all of northwest India under British rule.

    Legacy of Hosh Muhammad Sheedi:

    • Born into the household of Talpur rulers; of African-Siddi descent.
    • Valour acknowledged by both Indian and British chroniclers.
    • Became a folk hero of Sindh, remembered by Hindus and Muslims alike.
    • His legacy is central to the cultural memory of Sindh and highlights the role of the Siddi community in resisting colonialism.
    [UPSC 2007] The ruler of which one of the following States was removed from power by the British on the pretext of misgovernance?

    Options: (a) Awadh* (b) Jhansi (c) French (d) Satara

     

  • IBC Amendment Bill, 2025

    Why in the News?

    The Insolvency and Bankruptcy Code (Amendment) Bill, 2025 was introduced in the Lok Sabha by Finance Minister to streamline insolvency, cut tribunal delays, and add new tools like creditor-led resolution and cross-border insolvency.

    About the Insolvency and Bankruptcy Code (IBC), 2016:

    • IBC is India’s bankruptcy law, covering corporate persons, partnership firms, and individuals.
    • Insolvency: Liabilities exceed assets; entity cannot meet obligations.
    • Bankruptcy: Legal declaration of inability to pay debts.
    • Objective: Time-bound, creditor-driven resolution to improve recovery and business confidence.
    • Regulating Authority: Insolvency and Bankruptcy Board of India (IBBI), a statutory body with members from Ministry of Finance, Ministry of Corporate Affairs, and Reserve Bank of India.
    • Adjudicating Authority:
      • National Company Law Tribunal (NCLT) for companies/LLPs.
      • Debt Recovery Tribunal (DRT) for individuals and partnership firms.

    Key Amendments Proposed in IBC (2025):

    • Creditor-Initiated Insolvency Resolution Process (CIIRP): Out-of-court creditor resolutions with NCLT approval; faster timelines and promoter involvement.
    • Group Insolvency: Joint proceedings for related companies to preserve asset value and cut costs (e.g., Videocon Group case).
    • Cross-Border Insolvency: Framework to handle overseas assets and debts, allowing Indian lenders access to foreign assets.
    • Pre-Packaged Insolvency (PPIRP): Faster, affordable restructuring route for Micro, Small, and Medium Enterprises (MSMEs) while operations continue.
    • Other Reforms: Segregated asset sales, more NCLT benches (now 16), extended claim timelines, sector-specific provisions, and debtor audits.

    Achievements of IBC:

    • Debt Resolution: Resolved ₹3.16 lakh crore in 808 cases since 2016 (CRISIL data).
    • Recovery Rate: Average recovery of 32% of admitted claims, 169% of liquidation value.
    • Comparison: Outperformed earlier mechanisms (DRT, SARFAESI Act, Lok Adalat) which achieved only 5–20% recovery.
    • Deterrence: Borrowers pre-settled ₹9 lakh crore debt to avoid IBC proceedings.
    • Large NPAs: Addressed RBI’s “Dirty Dozen” cases like Bhushan Steel, Essar Steel, Jaypee Infratech.

     

    [UPSC 2017] Which of the following statements best describes the term ‘Scheme for Sustainable Structuring of Stressed Assets (S4A)’, recently seen in the news?

    Options: (a) It is a procedure for considering ecological costs of developmental schemes formulated by the Government.

    (b) It is a scheme of RBI for reworking the financial structure of big corporate entities facing genuine difficulties.

    (c) It is a disinvestment plan of the Government regarding Central Public Sector Undertakings.

    (d) It is an important provision in ‘The Insolvency and Bankruptcy Code’ recently implemented by the Government. *

     

  • Red Fort as the Venue for Independence Day

    Why in the News?

    On August 15, 2025, Prime Minister delivered the longest Independence Day speech (103 minutes) from the Red Fort, continuing a tradition started by Jawaharlal Nehru in 1947.

    The fort’s choice as the venue reflects its historic role as Delhi’s seat of power and symbol of sovereignty.

    About the Red Fort:

    • Construction: Built in 1648 by Mughal Emperor Shah Jahan as the palace fort of Shahjahanabad, his new capital.
    • Material: Enclosed by massive red sandstone walls with royal pavilions and apartments.
    • Water Feature: Contained the Nahr-i-Behisht (“Stream of Paradise”), a continuous water channel.
    • Architectural Value: Prime example of Mughal architecture, blending Islamic traditions with Indian craftsmanship.
    • Recognition: Declared a UNESCO World Heritage Site in 2007.

    Historical Significance of Delhi and Red Fort:

    • Delhi’s Role: Seat of power for nearly a thousand years, regarded as “capital of all Hindustan” by Babur.
    • Shahjahanabad: Inaugurated in 1648 with the Red Fort at its centre.
    • Symbol of Sovereignty: Even after Mughal decline, Delhi remained central; East India Company minted coins in the emperor’s name.

    1857 Revolt and British Authority:

    • Revolt Centre: Bahadur Shah Zafar was declared leader by sepoys in Delhi.
    • Aftermath: Fall of Delhi ended Mughal rule; Zafar was exiled.
    • Fort Damage: British converted Red Fort into a military garrison, destroying ~80% of interiors.
    • Imperial Authority: Delhi Durbars (1877, 1903, 1911) asserted British control before capital shifted from Calcutta to Delhi in 1911.

    Significance of Red Fort for Independence Day:

    • INA Trials: Held in Red Fort in 1946, igniting nationalist fervour.
    • 1947 Ceremony: Jawaharlal Nehru hoisted the national flag on 15 August 1947 and gave the first Independence Day address.
    • Tradition: Since then, every Prime Minister hoists the flag and addresses the nation from its ramparts.
    • Symbolism: Site once stamped with colonial dominance, now reclaimed as a symbol of India’s sovereignty.
    [UPSC 2021] What was the exact constitutional status of India on 26th January, 1950?

    Options: (a) A democratic Republic (b) A Sovereign Democratic Republic* (c) A Sovereign Secular Democratic Republic (d) A Sovereign Socialist Secular Democratic Republic

     

  • Russia’s Sale of Alaska to US

    Why in the News?

    United States President Donald Trump and his Russian counterpart Vladimir Putin are set to meet in Anchorage, Alaska to discuss how to end the war in Ukraine.

    Russia's Sale of Alaska to US

    About Alaska:

    • Acquisition: Largest U.S. state; Purchased from Russia in 1867 for $7.2 million.
    • Mountains: Includes Alaska Range with Mount Denali (20,310 ft), the highest peak in North America.
    • Geography: Brooks Range separates central Alaska from the Arctic far north.
    • Tundra: Northern regions feature vast tundra, permafrost, and Arctic coastal plains.
    • Glaciers: Hosts 100,000+ glaciers, including Bering Glacier, the largest in North America.
    • Forests: About 5% glacier ice, with extensive boreal and temperate rainforests in the south.
    • Volcanoes: More than 70 active volcanoes in Aleutians and Alaska Peninsula.
    • Seismic Activity: Located on the circum-Pacific seismic belt, prone to powerful quakes (e.g., 1964 Alaska earthquake).
    • Water Resources: Contains 3 million+ lakes and 3,000+ rivers, among the most water-rich regions globally.
    • Peninsulas: Includes Alaska Peninsula, Kenai Peninsula, and Seward Peninsula (linked to ancient Bering land bridge).

    Why did Russia sell Alaska to the US?

    • After the Crimean War (1853–56), Russia was financially strained and needed funds.
    • Alaska was seen as a remote, unprofitable liability with declining fur trade.
    • Russia feared Britain might seize Alaska easily from nearby Canada in a future war.
    • Selling it to the United States ensured goodwill and balanced British power.
    • The $7.2 million sale (1867) turned a weakly defended outpost into cash for reforms.

    Geopolitical Significance of Alaska:

    • Natural Resources: Rich in oil, gas (e.g., Prudhoe Bay discovery, 1968), fisheries, and minerals vital for U.S. energy security.
    • Shipping Routes: Offers access to Arctic Sea routes, increasingly navigable due to climate change.
    • Strategic Gateway: Provides access to the Arctic and Pacific, enhancing U.S. naval and air capabilities.
    • Defense Value: Proximity to Russia made it critical in the Cold War and remains vital in Arctic competition.
    • Military Presence: Hosts major U.S. bases and radar systems for missile defense and surveillance.
    • Arctic Council Role: Strengthens U.S. claims in polar governance and Arctic Council negotiations.
    • Scientific Hub: Serves as a center for climate, seismic, and polar ecosystem research.
    [UPSC 2025] Consider the following statements:

    I. Anadyr in Siberia and Nome in Alaska are a few kilometers from each other, but when people are waking up and getting set for breakfast in these cities, it would be different days.

    II. When it is Monday in Anadyr, it is Tuesday in Nome.

    Which of the statements given above is/are correct?

    (a) I only * (b) II only (c) Both I and II (d) Neither I nor II

     

  • Animal Birth Control (ABC) Program

    Why in the News?

    The Supreme Court has recently called returning sterilised stray dogs to the streets under the Animal Birth Control (ABC) Program as “unreasonable and absurd” and ordered they be moved to shelters.

    About Animal Birth Control (ABC) Program:

    • Purpose: Humane, scientifically proven method to control stray dog populations and reduce rabies.
    • Legal Basis: First under Animal Birth Control (Dogs) Rules, 2001 (under the Prevention of Cruelty to Animals Act, 1960); updated as Animal Birth Control Rules, 2023.
    • Development: Created with support from the World Health Organization (WHO).
    • Core Method: “Catch–sterilise–vaccinate–release” model; prohibits relocation or culling.
    • Implementation: Managed by municipalities, municipal corporations, and panchayats.
    • Authorisation: Only organisations recognised by the Animal Welfare Board of India (AWBI) can conduct programs.
    • Animal Birth Control Rules, 2023:
      • Implemented to comply with Supreme Court guidelines in Writ Petition No. 691 of 2009.
      • Assigns responsibility to local bodies (municipalities, corporations, panchayats) to conduct ABC programs for sterilisation and immunisation of stray dogs.
      • Prohibits relocation of stray dogs as a means of population control; instead, they must be sterilised and returned to the same area.
      • Only organisations recognised by the Animal Welfare Board of India (AWBI) can conduct ABC programs.

    Key Features:

    • Sterilisation Target: Minimum 70% of stray dogs in an area within one reproductive cycle (~6 months).
    • Focus: Female sterilisation at a 70:30 female-to-male ratio.
    • Rabies Control: Mandatory rabies vaccination (ABC–ARV) for every sterilised dog.
    • Infrastructure: Kennels, veterinary facilities, vehicles, and hygienic shelters required.
    • Recordkeeping: Detailed records for catching, surgery, vaccination, and release.
    • Monitoring: State and local committees ensure compliance and handle complaints.
    • Legal Protection: Mass relocation or killing prohibited under the Prevention of Cruelty to Animals (PCA) Act, 1960.
    [UPSC 2010] Consider the following statements:

    1. Every individual in the population is equally susceptible host for Swine Flu.

    2. Antibiotics have no role in the primary treatment of Swine Flu

    3. To prevent the future spread of Swine Flu in the epidemic area, the swine (pigs) must all be culled.

    Which of the statements given above is/are correct?

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

     

  • New Income Tax Bill, 2025

    Why in the News?

    Parliament has passed the Income-tax Bill, 2025, replacing the 1961 law with a leaner, simpler version free of redundant provisions and archaic language, effective April 1, 2026.

    About New Income Tax Bill, 2025:

    • Purpose: Replaces the Income Tax Act, 1961 after more than 60 years to simplify the law, remove redundant provisions, and modernise tax administration.
    • Effective Date: Comes into effect from April 1, 2026.
    • Structural Changes: Sections reduced from 819 to 536; chapters from 47 to 23.
    • Conciseness: Word count cut from 5.12 lakh to 2.6 lakh, with 39 tables and 40 formulas for clarity.
    • New Concept: Introduces “tax year” defined as April 1 to March 31.

    Key Features:

    • Refunds: Restores refund claims on belated returns by removing the earlier restriction.
    • Tax Collected at Source (TCS) Clarity: Nil TCS for Liberalised Remittance Scheme (LRS) remittances for education funded by financial institutions.
    • Corporate Tax: Corrects errors in inter-corporate dividend deduction for companies opting for concessional tax rates.
    • Alternate Minimum Tax (AMT) Alignment: Aligns AMT provisions for Limited Liability Partnerships (LLPs) with existing rates.
    • Nil-Tax Deducted at Source (TDS) Certificate: Permits taxpayers with no liability to obtain a nil-TDS certificate.
    • Transfer Pricing: Clarifies transfer pricing provisions, set-off of losses, and alignment with Section 79 on “beneficial owner.”
    • Non-Profit Organisation (NPO) Benefit: Expands exemption to 5% of total donations, instead of only anonymous donations.
    • House Property Income: Clarifies 30% standard deduction after municipal taxes.
    • Search Definition: Retains “virtual digital space” definition to include cloud storage, email, and social media accounts.
    • Data Handling: Standard Operating Procedure (SOP) to be issued for handling personal digital data seized in searches.
    [UPSC 2025] Consider the following statements: Statement I: In India, income from allied agricultural activities like poultry farming and wool rearing in rural areas is exempted from any tax. Statement II: In India, rural agricultural land is not considered a capital asset under the provisions of the Income-tax Act, 1961.

    Which one of the following is correct in respect of the above statements?

    (a) Both Statement I and Statement II are correct and Statement II explains Statement I

    (b) Both Statement I and Statement II are correct but Statement II does not explain Statement I*

    (c) Statement I is correct but Statement II is not correct

    (d) Statement I is not correct but Statement II is correct

     

  • 1950 Assam Earthquake and Future Seismic Risks in the Himalayas

    Why in the News?

    75 years ago on August 15, 1950, a magnitude 8.6 earthquake — the strongest recorded on land — struck Northeast India and surrounding regions.

    1950 Assam Earthquake and Future Seismic Risks in the Himalayas

    About the Earthquake:

    • Magnitude: 8.6, the strongest recorded earthquake on land.
    • Impact Area: Tremors lasted 4–8 minutes, felt over 3 million sq. km in India, Myanmar, Bangladesh, Tibet, and South China.
    • Casualties: Over 1,500 deaths in India and 4,000+ in Tibet; heavy livestock losses and infrastructure destruction.
    • Secondary Disasters: Triggered landslides blocking rivers, followed by devastating flash floods.

    Geological and Tectonic Setting:

    • Epicentre: 40 km west of Rima (Zayu), near India–Tibet border in the Mishmi Hills.
    • Tectonic Context: Located on Indian–Eurasian Plate boundary within Eastern Himalayan Syntaxis (EHS), influenced by the Sunda Plate.
    • Fault Type: Strike-slip motion with thrust faulting — atypical for Himalayan quakes.
    • Plate Convergence: Eastern Himalayas converge at 10–38 mm/year vs. ~20 mm/year elsewhere.
    • Aftershocks: Indicated activation of multiple faults from the Syntaxial bend to Himalayan thrust faults in Arunachal Pradesh.

    Lessons and Future Risks:

    • Magnitude Potential: Confirms Himalayan segments can produce ≥8.6 magnitude events.
    • Central Himalayan Risk: Identified as likely site for similar future quake.
    • Vulnerability Today: Increased due to urbanisation and large infrastructure in seismic zones.
    • Infrastructure Safety: Necessitates strict norms for dams and high-risk projects in Eastern Himalayas.
    • Preparedness: Highlights need for seismic hazard mapping and disaster readiness.
    [UPSC 2024] Consider the following statements:

    1. In a seismograph, P waves are recorded earlier than S waves.

    2. In P waves, the individual particles vibrate to and fro in the direction of waves propogation whereas in S waves, the particles vibrate up and down at right angles to the direction of wave propagation. 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

     

  • Orbiting Carbon Observatories (OCO) Program

    Why in the News?

    The Trump administration seeks to end two NASA missions under the Orbiting Carbon Observatories (OCO) program, which monitor global carbon dioxide emissions and plant health.

    About Orbiting Carbon Observatories (OCO) Program:

    • Overview: A NASA Earth remote sensing initiative dedicated to monitoring atmospheric carbon dioxide (CO₂) from space.
    • Objective: Designed to enhance understanding of climate change by precisely tracking CO₂ sources and sinks.
    • Comprises three missions:
      • OCO-1: Launched in 2009 but failed shortly after launch.
      • OCO-2: Launched in July 2014 as a replacement.
      • OCO-3: Installed on the International Space Station in May 2019.

    Key Features:

    • Precision Measurement: Provides high-resolution global CO₂ data and maps of plant photosynthesis.
    • Dual Capability: Measures CO₂ levels and solar-induced chlorophyll fluorescence to assess photosynthesis.
    • Applications: Detects drought, forecasts food shortages, identifies carbon sinks/sources, supports crop planning.
    • Global Reach: Tracks CO₂ distribution over continents, oceans, and remote ecosystems like Amazon and boreal forests.
    • Major Discoveries: Amazon rainforest now emits more CO₂ than it absorbs; boreal forests identified as major carbon sinks.
    • Policy Relevance: Supplies key data for climate treaties and greenhouse gas reporting.
    [UPSC 2019] For the measurement/estimation of which of the following are satellite images/remote sensing data used?

    1. Chlorophyll content in the vegetation of a specific location

    2. Greenhouse gas emissions from rice paddies of a specific location

    3. Land surface temperatures of a specific location

    Select the correct answer using the code given below.

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