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Distribution: yearly

  • Nuclear Non-Proliferation Treaty (NPT)

    Why in the News?

    Amid intensifying war with Israel, Iran’s Parliament began drafting a Bill to exit the Nuclear Non-Proliferation Treaty (NPT).

    About Nuclear Non-Proliferation Treaty (NPT):

    • Overview: It is a global agreement aimed at preventing the spread of nuclear weapons, promoting peaceful nuclear energy, and advancing nuclear disarmament.
    • Enforcement: It was opened for signature on June 12, 1968, and came into force on March 5, 1970.
    • Nature of the Treaty: It is the only binding international treaty that requires NWS to pursue disarmament.
    • Categorization of States: The treaty distinguishes between Nuclear Weapon States (NWS) and Non-Nuclear Weapon States (Non-NWS).
    • Key Features:
      • Definition of NWS: Countries that had tested nuclear weapons before January 1, 1967 (US, UK, France, Russia, China).
      • Obligations: NNWS agree not to manufacture or acquire nuclear weapons; NWS pledge not to transfer nuclear weapons or assist non-NWS in acquiring them.
      • Peaceful Use Clause: All parties are allowed to develop nuclear energy for peaceful purposes, under IAEA safeguards.
      • Monitoring Agency: The International Atomic Energy Agency (IAEA) verifies compliance through inspections and reporting.
      • Withdrawal Clause: Article 10 allows a country to withdraw with 3 months’ notice if national interests are jeopardized.

    India and NPT:

    • India is NOT a signatory to the NPT and has consistently refused to join, calling it discriminatory.
    • India argues that the treaty legitimizes nuclear weapons in the hands of five countries while denying them to others.
    • India conducted its first nuclear test in 1974 (Smiling Buddha) and maintains a “No First Use” policy.
    • Despite being outside the NPT, India is regarded as a responsible nuclear power and adheres to non-proliferation norms.

    Non-members of NPT, Countries Planning to Leave:

    • Non-signatories:
      • India and Pakistan have never signed the treaty, but both possess nuclear weapons.
      • Israel is also a non-signatory and maintains strategic ambiguity about its nuclear weapons.
      • South Sudan remains a non-signatory without known nuclear ambitions.
    • Countries that withdrew or are planning to:
      • North Korea signed in 1985, withdrew in 2003, and went on to develop nuclear weapons.
      • Iran, though a signatory since 1970, has recently threatened to withdraw, citing IAEA censure and security concerns linked to its tensions with Israel.
      • If Iran leaves, it would end IAEA inspections and raise fears of a nuclear arms race in the Middle East.
    [UPSC 2018] What is/are the consequence/consequences of a country becoming the member of the ‘Nuclear Suppliers Group’?

    1. It will have access to the latest and most efficient nuclear technologies.

    2. It automatically becomes a member of “The Treaty on the Non-Proliferation of Nuclear Weapons (NPT)”. 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

     

  • What is Reverse-Flipping?

    Why in the News?

    SEBI has introduced key regulatory relaxations to ease IPO norms and incentivize startups to shift their legal base back to India through reverse-flipping.

    About Reverse-Flipping:

    • Reverse-flipping refers to the process by which Indian startups that were earlier incorporated abroad shift their domicile back to India, making India their legal and operational headquarters.
    • It allows Indian companies to access domestic capital markets, reduce compliance complexity, and align with the evolving global tax and regulatory environment.
    • This shift helps startups tap Indian stock exchanges, reduce reliance on foreign jurisdictions, and benefit from a favorable Indian regulatory ecosystem.

    Types of Reverse-Flipping

    1. Share Swap Arrangement:
      • In this structure, shareholders of the foreign parent company exchange their shares for shares in the Indian subsidiary.
      • This process may trigger capital gains tax under the Income Tax Act, 1961, especially for Indian shareholders.
    1. Inbound Merger (Cross-Border Merger):
      • The foreign parent company merges with its Indian subsidiary, with the Indian entity becoming the surviving legal structure.
      • If all conditions under the Foreign Exchange Management Act (FEMA), the Companies Act, 2013, and National Company Law Tribunal (NCLT) are met, this merger route can be tax-neutral.

    Key Features:

    • Domestic Listing Access: Startups gain access to Indian IPO markets and valuations.
    • Simplified Compliance: Reduced legal and regulatory complications from operating across jurisdictions.
    • Investor Incentives: SEBI now allows foreign venture funds and AIFs to be counted towards minimum promoter contribution in public issues.
    • ESOP Relaxation: SEBI has allowed promoters/founders to retain Employee Stock Option Plans (ESOPs) granted one year prior to the filing of the Draft Red Herring Prospectus (DRHP).
    • Capital Market Boost: The move supports India’s goal to become a global startup and financial hub by encouraging reverse-flipping.
    • Tax & Legal Alignment: Shifting domicile can help startups comply better with Indian tax and business laws.

    Note:

    Employee Stock Option Plans (ESOPs) are structured benefit schemes that grant employees the right to purchase shares of their company at a predetermined price—known as the exercise price—after completing a specific period.

     

    [UPSC 2025] Consider the following statements:

    Statement I: As regards returns from an investment in a company, generally, bondholders are considered to be relatively at lower risk than stockholders.

    Statement II: Bondholders are lenders to a company whereas stockholders are its owners.

    Statement III: For repayment purpose, bondholders are prioritized over stockholders by a company.

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

    (a) Both Statement II and Statement III are correct and both of them explain Statement I *

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

    (c) Only one of the Statements II and III is correct and that explains Statement I

    (d) Neither Statement II nor Statement III is correct

     

  • SMILE Scheme 

    Why in the News?

    Reasi is set to become J&K’s second district after Srinagar to implement the Support for Marginalised Individuals for Livelihood and Enterprise (SMILE) Scheme for marginalised individuals’ dignity and livelihood.

    About the SMILE Scheme:

    • Launch: It was launched in 2022 by the Ministry of Social Justice and Empowerment.
    • Type: It is a Central Sector Scheme aimed at the rehabilitation of beggars and empowerment of transgender persons.
    • Core Focus: It promotes rehabilitation, livelihood creation, skill development, and social inclusion for the most marginalised individuals.
    • Approach: It merges earlier schemes for transgender persons and those engaged in begging to provide a cohesive welfare framework.
    • Key Features and Components:
      • Shelter Provision: Uses existing shelter homes run by states/UTs; new homes are set up where needed for secure accommodation.
      • Livelihood and Skilling: Offers education, identity documentation, vocational training, and economic linkages to ensure self-reliance.
      • Target Group Size: The scheme aims to benefit approximately 60,000 marginalised individuals, especially transgender persons and urban beggars.
    • Implementation and Funding:
      • Pilot Launch: The first phase started in 30 cities and later expanded to 50 more cities under Phase 2.
      • Survey Mechanism: Local authorities conduct field surveys, with each unit aiming to rehabilitate at least 25 individuals.
      • Financial Allocation: A total of ₹100 crore was allocated for 2023–26, with ₹14.71 crore spent by December 2024 on rehabilitation efforts.
    [UPSC 2016] ‘Rashtriya Garima Abhiyaan’ is a national campaign to:

    (a) rehabilitate the homeless and destitute persons and provide them with suitable sources of livelihood*

    (b) abolish the Child Labour

    (c) salvage the marshy lands and wetlands in the coastal areas and cultivate crops in them

    (d) rehabilitate the manual scavengers and provide them with suitable sources of livelihood

     

  • Pradhan Mantri Awas Yojana – Urban 2.0 

    Why in the News?

    The Central Sanctioning and Monitoring Committee (CSMC) has approved construction of 2.35 lakh houses under the Pradhan Mantri Awas Yojana – Urban 2.0 (PMAY-U 2.0).

    About Pradhan Mantri Awas Yojana (PMAY):

    • It is a Centrally sponsored housing scheme launched by the Government of India in 2015 with the aim of providing “Housing for All” by ensuring access to pucca (permanent), all-weather houses with basic amenities to all eligible beneficiaries.
    • The scheme has two major components:
      • PMAY-Gramin (PMAY-G) for rural areas, implemented by the Ministry of Rural Development.
      • PMAY-Urban (PMAY-U) for urban areas, implemented by the Ministry of Housing and Urban Affairs (MoHUA).
    • PMAY follows a targeted and inclusive approach, prioritizing Economically Weaker Sections (EWS), Low Income Groups (LIG), Middle Income Groups (MIG), and other vulnerable sections like SCs, STs, women, transgenders, and minorities.

    About Pradhan Mantri Awas Yojana – Urban 2.0:

    • PMAY-U 2.0 is the revamped version of PMAY-Urban, launched in 2024, with a renewed target to provide 1 crore additional pucca houses in urban India by 2028.
    • It builds on the progress made under the original PMAY-U (2015), under which over 93 lakh houses have been constructed.
    • The scheme supports house construction, purchase, and rental housing for eligible urban families under EWS, LIG, and MIG categories.
    • The total investment for PMAY-U 2.0 is ₹10 lakh crore, with ₹2.3 lakh crore committed by the Centre as financial assistance or subsidies.
    • CSMC (Central Sanctioning and Monitoring Committee) oversees approvals, with recent approvals including 2.34 lakh houses for nine states.

    Key Features of PMAY-U 2.0:

    • Four Implementation Verticals:
      1. Beneficiary-Led Construction (BLC): Support for building houses on owned land.
      2. Affordable Housing in Partnership (AHP): Houses built with public/private sector collaboration.
      3. Affordable Rental Housing (ARH): Rental units for migrants, workers, and urban homeless.
      4. Interest Subsidy Scheme (ISS): Interest subsidy on housing loans for EWS, LIG, MIG.
    • Target Beneficiaries:
      • Families with annual income up to ₹3 lakh (EWS), ₹3–6 lakh (LIG), and ₹6–9 lakh (MIG).
      • Must not own a pucca house anywhere in India in the name of any family member.
      • Adult earning members are treated as separate households.
    • Central Assistance:
      • Up to ₹2.5 lakh per housing unit under BLC and AHP.
      • Up to ₹1.8 lakh interest subsidy under ISS for home loans up to ₹25 lakh.
    • Technology Innovation:
      • Support for disaster-resistant, sustainable construction using Technology Innovation Grants (TIG).
      • Real-time tracking with geo-tagging, BHUVAN platform, and PMAY-U portal.
    • Inclusive Allocation:
      • Special allocations for women, SC/ST/OBC, and transgender individuals.
      • Focus on gender and social equity in housing distribution.
    • Robust Governance and Monitoring:
      • Implementation through Urban Local Bodies (ULBs).
      • Direct Benefit Transfer (DBT) and Management Information System (MIS) for transparency.
      • Coordination with Smart Cities, AMRUT 2.0, Swachh Bharat, and other schemes.
    [UPSC 2015] Pradhan Mantri Jan-Dhan Yojana’ has been launched for:

    Options: (a) providing housing loan to poor people at cheaper interest rates (b) promoting women’s Self-Help Groups in backward areas (c) promoting financial inclusion in the country (d) providing financial help to the marginalized communities

     

  • Legal mandate for One Nation, One Time 

    Why in the News?

    The Government of India has mandated the use of Indian Standard Time (IST) across all legal, commercial, digital, and administrative sectors.

    About Indian Standard Time (IST):

    • It is the official time zone of India, set at Coordinated Universal Time (UTC) +5:30 and based on the 82.5° E longitude passing through Mirzapur, Uttar Pradesh.
      • Neighbouring countries such as Sri Lanka also use the same UTC+5:30 offset.
    • IST meridian passes through 5 Indian states: Uttar Pradesh, Madhya Pradesh, Chhattisgarh, Odisha, and Andhra Pradesh.
    • It was established in 1906, replacing older regional time zones like Bombay, Calcutta, and Madras Time.
    • It is maintained by the National Physical Laboratory (CSIR-NPL) using ultra-precise atomic clocks, which lose only one second in millions of years.
    • India does NOT observe daylight saving time; IST remains constant throughout the year.

    Back2Basics:

    Greenwich Mean Time (GMT):

    • GMT is the mean solar time at the Prime Meridian (0° longitude) located at the Royal Observatory in Greenwich, London.
    • It was established in 1884 during the International Meridian Conference as the world’s time standard.
    • It is based on astronomical observations, specifically the mean position of the Sun over time.
    • It does not change with the seasons and does not observe Daylight Saving Time (DST).
    • Although now largely replaced by UTC in scientific and civil contexts, GMT is still used in some regions (e.g., the UK during winter months).

    Coordinated Universal Time (UTC):

    • UTC is the primary time standard by which the world regulates clocks and time.
    • It was established in 1960 and is maintained by a network of high-precision atomic clocks worldwide.
    • UTC is adjusted periodically by leap seconds to compensate for the Earth’s irregular rotation speed.
    • It is used in aviation, computing, space science, and by international organisations like the UN and ITU.
    • Unlike GMT, which is purely solar-based, UTC combines atomic time (TAI) with occasional corrections for Earth’s rotation.

    IST in Context:

    • IST = GMT + 5:30
    • IST = UTC + 5:30

     

    Steps to Implement One Nation, One Time:

    [1] Time Dissemination Project:

    • It is a government initiative to ensure accurate, synchronised, and secure timekeeping across India.
    • It is led by the Department of Consumer Affairs, in collaboration with CSIR-NPL and ISRO.
    • Five Regional Reference Standard Laboratories (RRSLs) are being established in Ahmedabad, Bengaluru, Bhubaneswar, Faridabad, and Guwahati.
    • These labs use atomic clocks and protocols like Network Time Protocol (NTP) and Precision Time Protocol (PTP) to maintain accuracy within microseconds.

    [2] Legal Metrology (IST) Rules, 2025: Key Provisions

    • Mandatory Use of IST: IST, as maintained by CSIR-NPL, becomes the sole legally recognized time standard in India.
    • Prohibition of Foreign Time Sources: Use of foreign systems like GPS time will be banned unless specifically approved by the government.
    • Sync Requirements: All government bodies, financial institutions, power grids, and telecom operators must synchronize their systems with IST.
    • Audit and Compliance: The system will be monitored through periodic audits and penalties will be imposed for violations.
    • Special Exemptions: Activities such as scientific research, astronomy, and national security operations may use alternative time sources after government approval.

     

    [UPSC 2025] Consider the following countries:

    I. United Kingdom II. Denmark III. New Zealand IV. Australia V. Brazil How many of the above countries have more than four time zones?

    (a) All the five (b) Only four * (c) Only three (d) Only two

     

  • PM-WANI Scheme

    Why in the News?

    The TRAI ordered that public Wi-Fi hotspot operators under PM-WANI programme should not be charged more than twice what a residential broadband user paid for setting up a hotspot.

    What is the PM WANI Scheme?

    • Overview: PM Modi launched the Prime Minister Wi-Fi Access Network Interface (PM WANI) in December 2020.
    • Nodal agency: It is an initiative under the Department of Telecommunications (DoT).
    • Objective: To democratize internet access, particularly in remote and underserved areas.
    • Goals: It takes forward the goal of the National Digital Communications Policy, 2018 (NDCP) of creating a robust digital communications infrastructure.
    • Implementation: Leverages Public Data Offices (PDOs) established in public spaces like railway stations, banks, post offices, and more. Users can access the internet via Wi-Fi at these locations without requiring a SIM card.
    • PM-WANI ecosystem consists of four parts: 
      1. Public Data Office (PDO): It establishes the Wi-Fi Hotspots and provides internet access to users
      2. Public Data Office Aggregator (PDOA):  It provides authorisation and accounting services to PDOs.
      3. App Provider: It displays the available hotspots in the phone’s proximity.
      4. Central Registry: This overseen by the Centre for Development of Telematics maintains details of App Providers, PDOs, and PDOAs.
    • How to Utilize PM WANI?
      • To access PM WANI services, users must install the Data PM WANI app on their smartphones.
      • Through the app, users can connect to nearby public Wi-Fi PDOs.
      • This application facilitates seamless connectivity to PM-WANI-compliant Wi-Fi hotspots, empowering users to access broadband services conveniently.

    Role of Public Data Offices (PDOs):

    • The PM-WANI scheme includes a provision for establishing Public Data Offices (PDOs) by rural entrepreneurs in remote regions.
    • These PDOs procure internet bandwidth from telecom service providers or ISPs to offer Wi-Fi services at minimal charges.
    • This model enables individuals to access the internet even in areas with limited or no data connectivity.
    [2018] Which of the following is/are the aim/aims of “Digital India” Plan of the Government of India?

    1. Formation of India’s own Internet companies like China did.
    2. Establish a policy framework to encourage overseas multinational corporations that collect Big Data to build their large data centres within our national geographical boundaries.
    3. Connect many of our villages to the Internet and bring Wi-Fi to many of our school, public places and major tourists.

    Select the correct answer using the codes given below:

    (a) 1 and 2 only

    (b) 3 only

    (c) 2 and 3 only

    (d) 1, 2 and 3

     

  • India needs to design an inclusive pension system

    Why in the News?

    India’s pension landscape is facing a critical juncture, as highlighted in the Economic Survey 2025-26.

    What is the current state of India’s pension ecosystem?

    • Low Pension Assets: Pension assets in India are just 17% of GDP, significantly lower than in developed countries, which range around 80%.
    • Uneven Coverage: Only 12% of the workforce is covered by formal schemes, mainly in the public and organised private sectors.
    • Informal Sector Gap: Informal workers, including gig workers, are largely left out—only 5.3% of the total population participates in Atal Pension Yojana and NPS (FY24).
    • Fragmentation of Schemes: India’s pension system is disjointed, unlike the multi-tiered models in countries like Japan and New Zealand.

    Why is pension coverage for the informal sector vital for India’s development goals?

    • Large Workforce Contribution: Over 85% of India’s workforce is in the informal sector, contributing more than half of the GDP. Ensuring their old-age security is crucial for inclusive economic growth. Eg: Street vendors, gig workers, and farm labourers often lack any retirement support despite their significant economic role.
    • Rising Old-Age Dependency: By 2050, India’s old-age dependency ratio is expected to reach 30%, increasing the burden on working-age populations. Expanding pension coverage now helps prevent future elderly poverty and reduces pressure on public welfare systems. Eg: Without pension security, aging informal workers may become financially dependent on their families or state welfare.
    • Achieving Viksit Bharat by 2047: A universal and inclusive pension system is essential to meet the goal of becoming a developed economy by 2047, ensuring that development is sustainable and equitable. Eg: Countries like New Zealand and Japan offer universal pension models that India can adapt to promote long-term social security.

    What are the key challenges in India’s current pension system?

    • Fragmented and Unequal Coverage: India’s pension landscape is divided across multiple parallel schemes, mainly benefitting public and organised private sector workers, while the informal sector remains largely excluded. Eg: Schemes like EPFO or NPS cover only ~12% of the workforce; gig workers must voluntarily opt into the Atal Pension Yojana, limiting reach.
    • Low Financial Literacy and Awareness: A large section of informal workers lack awareness of available pension options due to limited financial literacyand inadequate grassroots outreach. Eg: Unlike Australia, where superannuation education is part of the school curriculum, India lacks structured sensitisation efforts.
    • Lack of Sustainability and Liquidity in Funds: Many Indian pension funds face low adequacy and poor returns, threatening long-term sustainability. Eg: According to the Mercer CFA Global Pension Index 2024, India scored just 44%, with a sharp fall in adequacy compared to global benchmarks like Denmark or Netherlands.

    How do global pension models ensure inclusivity and sustainability?

    • Universal or Mandatory Coverage: Many countries adopt universal or compulsory schemes to ensure no worker is left out, regardless of employment type. Eg: Japan has a mandatory flat-rate contributory scheme for all residents aged 20–59, including self-employed, farmers, and employees. New Zealand provides a universal pension to all citizens aged 65+, with a 10-year residency condition.
    • Automatic Enrolment and Employer Participation: Models promoting auto-enrolment and mandatory employer contributions increase participation, especially among informal or gig workers. Eg: The UK operates an opt-out pension scheme, automatically enrolling workers unless they choose otherwise.
    • Transparent Communication and Digital Access: Regular disclosures and easy digital access help build trust and improve awareness of pension entitlements. Eg: Netherlands provides annual pension statements to all contributors. Nigeria has invested in digital pension infrastructure to expand access, especially in rural or informal settings.

    What are the steps taken by the government? 

    • Launch of Atal Pension Yojana (APY): Introduced in 2015, APY is a voluntary pension scheme aimed at workers in the unorganised sector, offering a guaranteed monthly pension between ₹1,000 and ₹5,000 after age 60. Eg: As of FY24, APY covered over 5.3% of India’s population, helping bring informal workers under a pension net.
    • Expansion of the National Pension System (NPS): NPS was extended to all citizens on a voluntary basis, including gig workers, self-employed individuals, and informal sector workers, with flexible contributions. Eg: The eNPS portal allows for easy digital enrolment and management, making it accessible to informal workers.
    • Social Security Code and Aggregator Contribution: Under the Code on Social Security, 2020, the government mandated platform aggregators (like ride-sharing or delivery apps) to contribute towards the social security of gig and platform workers.

    Which reforms can integrate informal workers into India’s pension framework? (Way forward) 

    • Harmonise fragmented schemes into a three-tier framework: Tier 1: Mandatory basic pension for all, irrespective of employment type. Tier 2: Employer-linked schemes with auto-enrolment. Tier 3: Voluntary savings with tax benefits and flexible options. Eg: Japan’s mandatory flat-rate pension includes self-employed, farmers, and private/public workers.
    • Enhance Financial Literacy and Awareness: Launch targeted awareness campaigns on pension benefits, especially in rural and informal sectors, starting at school and college levels.
      Eg: Australia includes superannuation education in school curricula; UK promotes pensions through opt-out schemes to increase enrolment by default.
    • Strengthen Digital Pension Infrastructure: Develop user-friendly digital platforms for easy enrolment, contribution tracking, and annual disclosures for informal workers. Eg: Nigeria has invested heavily in digital systems to expand pension access across informal sectors.

    Mains PYQ:

    [UPSC IAS 2023] Development and welfare schemes for the vulnerable, by its nature, are discriminatory in approach.” Do you agree? Give reasons for your answer.

    Linkage: This article explicitly states that “the only protection for the informal sector is voluntary adoption under the National Pension System and Atal Pension Yojana” and that “this only addresses a fraction of the informal sector and adds another parallel scheme to an already complex web”.

  • Rice reveals surprise ability to adapt to cold faster than evolution 

    Why in the News?

    In a major study, scientists proved that cold exposure in rice plants can cause changes that improve stress tolerance and are inherited by the next five generations, supporting Lamarck’s old theory.

    What was Lamarck’s theory of acquired characteristics?

    This idea was formally presented by Jean-Baptiste Lamarck in 1809, and it was one of the earliest theories of evolution. When the traits developed during an organism’s lifetime due to use, disuse, or environmental influence could be inherited by its offspring. Eg: A giraffe stretching its neck to reach higher leaves would result in its offspring having longer necks.

    How did later scientific discoveries challenge it?

    • Weismann’s Tail-Cutting Experiment: August Weismann demonstrated that acquired traits are not inherited by cutting the tails of mice for five generations, yet their offspring were still born with tails.
    • Mendel’s Laws of Heredity: Gregor Mendel showed that traits are inherited through stable units (genes) passed unchanged from parents to offspring, rather than traits acquired during life. Eg: In pea plants, traits like flower colour were inherited predictably, regardless of environmental changes.
    • Discovery of DNA and Mutations: The discovery of DNA as the genetic material and that mutations cause heritable changes explained inheritance scientifically, without relying on acquired characteristics. Eg: Genetic disorders like sickle cell anemia are caused by specific DNA mutations, not by environmental use or disuse.

    How did Mendel’s work and DNA discovery change heredity understanding?

    • Introduction of Stable Hereditary Units: Mendel’s experiments introduced the concept of “genes” as stable, particulate units of inheritance passed from parents to offspring. Eg: Mendel’s pea plant experiments showed traits like seed shape and flower color followed predictable patterns.
    • Law of Segregation and Independent Assortment: Mendel proposed that alleles segregate independently, ensuring genetic variation without influence from acquired traits. Eg: A plant with one tall and one short gene could pass either to its offspring, not a mix of the two.
    • DNA Identified as Genetic Material: Later discoveries identified DNA as the carrier of genetic information, solidifying the molecular basis of heredity. Eg: Avery, MacLeod, and McCarty’s experiments in 1944 showed that DNA—not proteins—was responsible for heredity.
    • Mutation Explained Heritable Variation: The understanding that mutations in DNA cause changes in traits clarified how new heritable variations arise. Eg: Mutations in the hemoglobin gene lead to sickle cell anemia, a heritable disorder.
    • Disproved Lamarckian Inheritance: These findings rejected the idea that characteristics acquired during life could be inherited, as proposed by Lamarck. Eg: A bodybuilder’s muscular physique isn’t passed to their children genetically.

    Why is the Cell study on cold-tolerant rice significant?

    • Proof of Heritable Epigenetic Change Induced by Environment: The study demonstrated that cold exposure triggered an epigenetic modification (methylation) in rice plants, which was inherited for five generations. Eg: Rice plants exposed to cold passed on improved cold tolerance without any DNA sequence change.
    • Reinforced the Role of Epigenetics in Evolution: It showed that gene expression can be regulated by epigenetic marks rather than genetic mutations, suggesting Lamarck’s idea of environmental inheritance has merit. Eg: The ACT1 gene stayed active in cold-tolerant rice due to the absence of a methylation tag, helping them survive cold stress.
    • New Direction for Crop Improvement and Climate Resilience: The findings open doors for non-genetic crop adaptation methods to deal with climate change. Eg: Epigenetically trained rice varieties could be developed to withstand colder environments, improving food security.

    What are the steps taken by the Indian Government? 

    • Multigenerational Cold-Stress Breeding: Researchers implemented a directional selection process over multiple generations by exposing rice to cold during the vulnerable meiotic stage, breeding for improved cold resistance. Eg: After three generations, they developed rice lines with stable cold tolerance that persisted for at least five generations.
    • Epigenetic Mapping and Editing of the ACT1 Promoter: Through multi-omics analysis, scientists identified hypomethylation at the ACT1 promoter as the molecular basis for cold adaptation. They then used precision DNA methylation editing to confirm that removing methyl tags restored cold tolerance.  

    Way forward:

    • Incorporate Epigenetic Breeding in National Crop Improvement Programs: Government research bodies and agricultural universities should integrate epigenetic trait selection and editing into mainstream breeding to develop climate-resilient varieties, especially for stress-prone regions.
    • Strengthen Investment in Multi-Generational Stress Trials: Increase funding for long-term, controlled environment trials to identify and stabilize heritable epigenetic traitsacross major crops, ensuring sustainable food security under climate change.

    Mains PYQ:

    [UPSC 2019] How can biotechnology improve the living standards of farmers?

    Linkage: The core of the article reveals a novel mechanism for plant adaptation—epigenetic inheritance of cold tolerance in rice plants. This scientific breakthrough, falling under the broad umbrella of biotechnology, demonstrates a potential pathway to develop crops that can adapt to challenging environmental conditions (like cold stress) more rapidly than through traditional breeding or genetic modification.

  • Magna Carta: The ‘blueprint for democracy’

    Why in the News?

    On June 15, 1215, King John of England agreed to a seminal document called the Magna Carta, laying down principles that would help establish the foundations of modern democracies.

    About Magna Carta:

    • Overview: The Magna Carta, meaning “Great Charter” in Latin, was signed on June 15, 1215, at Runnymede near London by King John of England under pressure from rebel barons.
    • Content: The charter originally had 63 clauses, with two of the most important being:
      • Clause 39: Protection against arbitrary arrest and imprisonment.
      • Clause 40: Guarantee of justice without delay or denial.
    • Context: It was created in response to military defeats and excessive taxation, particularly following England’s loss at the Battle of Bouvines (1214).
    • Initial Setback: Though annulled by Pope Innocent III, it was reissued multiple times, especially under King Henry III, and became part of English statutory law.
    • How it dealt with the masses: Magna Carta was initially meant to protect free men—mainly land-owning nobles and barons, excluding women, serfs, and commoners.
    • Radical Impact: Despite its narrow scope, historians regard it as Europe’s most radical early check on monarchical authority.
    • Legal Influence: The charter influenced future legal systems, including the U.S. Constitution, Bill of Rights, and principles like habeas corpus.
    • Modern Relevance: Clauses 39 and 40 remain part of UK law today.
    • Significance: It is considered one of the earliest documents to limit royal power and lay the foundation for the rule of law and constitutional governance.

    Magna Carta of the Indian Constitution: Part III (Fundamental Rights)

    • Part III (Articles 12 to 35) of the Indian Constitution is often called the “Magna Carta of India”.
    • It guarantees justiciable Fundamental Rights, protecting citizens against arbitrary state action and forming the core of Indian democracy.
    • Why it’s called India’s Magna Carta?
      • Historical Parallel: Like the 1215 charter, Part III limits government power and guarantees individual freedoms.
      • Inspired by the U.S. Bill of Rights, it offers one of the most comprehensive rights charters in the world.
      • Legal enforceability empowers courts to uphold citizens’ rights and strike down unconstitutional laws.
    • Six Categories of Fundamental Rights:
      1. Right to Equality (Articles 14–18): Equality before law and prohibition of discrimination.
      2. Right to Freedom (Articles 19–22): Freedom of speech, movement, assembly, etc.
      3. Right against Exploitation (Articles 23–24): Ban on forced labour and child labour.
      4. Right to Freedom of Religion (Articles 25–28): Freedom to practice and propagate religion.
      5. Cultural and Educational Rights (Articles 29–30): Rights of minorities to preserve culture and run institutions.
      6. Right to Constitutional Remedies (Article 32): Right to move the Supreme Court for enforcement of rights.
    [UPSC 2010] The ‘Instrument of Instructions’ contained in the Government of India Act 1935 have been incorporated in the Constitution of India in the year 1950 as:

    Options: (a) Fundamental rights (b) Directive Principles of State Policy* (c) Extent of executive power of State (d) Conduct of business of the Government of India

     

  • [pib] Ancient Assam Fossils Link to Western Ghats Biodiversity 

    Why in the News?

    In Assam’s Makum Coalfield, BSIP scientists found 24–23 million-year-old fossil leaves resembling today’s Nothopegia, now limited to the Western Ghats.

    [pib] Ancient Assam Fossils Link to Western Ghats Biodiversity 

    About the Nothopegia Fossil Discovery

    • Overview: Palaeo-scientists from Lucknow discovered fossil leaves in the Makum Coalfield of Assam. It dates back 24–23 million years to the late Oligocene epoch.
    • Oldest Known Record: These are the oldest known fossils of the Nothopegia genus, a tropical plant now endemic to the Western Ghats, not found in Northeast India today.
    • Identification Methods: Researchers used morphological analysis, herbarium comparisons, and cluster analysis to identify the fossil leaves.
    • Tropical Legacy: Nothopegia belongs to the Anacardiaceae family and reflects ancient tropical ecosystems that once existed in Northeast India.
    • Climate Reconstruction: Using the Climate Leaf Analysis Multivariate Program (CLAMP), scientists confirmed that the region once had a warm and humid climate, similar to the present-day Western Ghats.

    Why did Nothopegia disappear from the Northeast?

    • Tectonic Disruption: The collision of the Indian and Eurasian plates led to the rise of the Himalayas, drastically altering climate, rainfall, and wind patterns in Northeast India.
    • Habitat Loss: These shifts caused the region to cool and dry, rendering it unsuitable for tropical flora like Nothopegia.
    • Southward Migration: Over time, the plant spread to the Western Ghats, which offered a climatically stable refuge and allowed its survival.

    Significance of the Study:

    • Climate Lessons: The extinction and migration pattern of Nothopegia illustrates a deep-time example of species response to long-term climate change.
    • Scientific Value: Understanding ancient plant resilience aids in predicting survival pathways under current global warming scenarios.
    • Refuge Significance: The study highlights how climate refuges like the Western Ghats help preserve ancient lineages during major environmental changes.
    [UPSC 2025] Which of the following are the evidence of the phenomenon of continental drift?

    I. The belt of ancient rocks from the Brazil coast matches with those from Western Africa. II. The gold deposits of Ghana are derived from the Brazil plateau when the two continents lay side by side. III. The Gondwana system of sediments from India is known to have its counterparts in six different landmasses of the Southern Hemisphere.

    Select the correct answer using the code given below:

    Options: (a) I and III only (b) I and II only (c) I, II and III *(d) II and III only