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  • Rhisotope Project

    Why in the News?

    In a move to combat rhino poaching, the University of the Witwatersrand in South Africa, supported by the International Atomic Energy Agency (IAEA), has launched the Rhisotope Project.

    What is Rhisotope Project? 

    • Launched By: University of the Witwatersrand, South Africa, with support from the International Atomic Energy Agency (IAEA).
    • Initiation: Concept began in 2021; formally launched in July 2024.
    • Objective: Prevent rhino poaching by making horns traceable and unsuitable for illegal trade.
    • Pilot Site: Waterberg Biosphere Reserve, South Africa.
    • Pilot Implementation: 20 rhinos injected with radioisotopes (exact isotope remains undisclosed) for testing.

    How the Isotope Tagging Works?

    • Isotope Basics: Uses radioactive isotopes that emit detectable radiation as they decay.
    • Injection Method: A small hole is drilled into the horn; a low dose of isotope is inserted safely.
    • Detection Mechanism: Radiation Portal Monitors at ports can detect tagged horns—even inside 40-foot containers, as proven using 3D-printed horn simulations.

     

    Significance:

    • Safety Assurance: No damage to rhinos observed; cytological tests showed no cellular or physiological harm.
    • Impact on Illegal Trade: Horn becomes detectable, unusable, and toxic for illegal human consumption.
    [UPSC 2019] Consider the following statements:

    1. Asiatic lion is naturally found In India only.     2. Double-humped camel is naturally found in India only.     3. One-horned rhinoceros is naturally found in India only.

    Which of the statements given above is / are correct?”

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

     

  • Population Census of Nilgiri Tahrs  

    Why in the News?

    A joint population census conducted by Kerala and Tamil Nadu has revealed the presence of 2,668 Nilgiri tahrs in the Western Ghats.

    Population Census of Nilgiri Tahrs  

    About Nilgiri Tahr (Nilgiritragus hylocrius):

    • Endemism: Found only in the Nilgiri Hills and southern Western Ghats of Tamil Nadu and Kerala, India.
    • Ecological Role: Key grazer in the montane grassland ecosystem, influencing plant growth and grassland regeneration.
    • Habitat:
      • Open montane grasslands interspersed with shola forests (South Western Ghats montane rain forests eco-region).
      • Occurs at elevations between 1,200 to 2,600 metres (3,900 to 8,500 feet).
      • Prefers steep rocky slopes, cliff edges, and grassy plateaus — areas with clear visibility to detect predators.
    • Population: Estimated 3,122 individuals in the wild; Locally extinct in about 14% of its historical habitat.
      • In Kerala (1,365): Eravikulam National Park (ENP) – largest single population (~841 individuals); Anamalai Hills landscape.
      • In Tamil Nadu (1303): Mukurthi National Park; Grass Hills National Park; Kalakkad-Mundanthurai Tiger Reserve (lesser presence)
    • Conservation Status:
      • IUCN Red List: Endangered
      • Wildlife (Protection) Act, 1972: Schedule I
    • Cultural Significance:
      • Official state animal of Tamil Nadu.
      • Mentioned in Tamil Sangam literature (~2,000 years ago).
      • Seen in Mesolithic rock art (10,000–4,000 BC), indicating its deep historical importance.
    [UPSC 2018] Consider the following fauna of India:

    1. Gharial 2. Leatherback turtle 3. Swamp deer

    Which of the above is/are endangered?

    Options: (a) 1 and 2 only (b) 3 only (c) 1, 2 and 3 * (d) None

     

  • Asset Under Management (AUM)

    Why in the News?

    India’s Mutual Fund (MF) industry has witnessed exponential growth, with Assets Under Management (AUM) reaching ₹74.40 lakh crore as of June 2025, a sevenfold increase over the past decade.

    What are Assets Under Management (AUM)?

    • Definition: AUM refers to the total market value of financial assets (stocks, bonds, etc.) managed by an investment firm on behalf of clients.
    • Growth Drivers:
      • Net investor inflows and redemptions
      • Market performance
      • Dividend reinvestments
    • Importance:
      • Indicates fund size, investor confidence, and fund stability
      • Reflects fund manager performance and popularity
      • Higher AUM allows better liquidity and portfolio diversification
      • Impacts management fees and minimum investment limits

    What is a Mutual Fund?

    • Definition: A mutual fund pools money from multiple investors to invest in a diversified portfolio.
    • Management: Handled by professional fund managers to balance risk and return.
    • Unit-Based Investment: Investors purchase fund units; each unit’s value is called the Net Asset Value (NAV), which changes with market movement.

    Classification of Mutual Funds

    a. Based on Asset Class:

    1. Equity Funds: Invest in stocks; includes large-cap, mid-cap, and small-cap funds.
    2. Debt Funds: Invest in bonds and other fixed-income instruments.
    3. Hybrid Funds: Mix of equity and debt for balanced risk-return.

    b. Based on Investment Objective:

    1. Growth Funds: Focus on capital appreciation; suitable for long-term investors.
    2. Income Funds: Aim for regular income via bonds/dividends.
    3. Liquid Funds: Invest in short-term debt; low risk and high liquidity.
    4. Tax-saving Funds (Equity Linked Savings Scheme): Offer Section 80C tax benefits; equity-focused.
    5. Pension Funds: Meant for retirement; long-term return-focused.

    c. Based on Structure:

    1. Open-ended Funds: Investors can enter or exit anytime; highly liquid.
    2. Closed-ended Funds: Fixed maturity; investments only during the initial offer period.
    3. Interval Funds: Allow purchase/redemption only at specific intervals.

     

    [UPSC 2025] Consider the following statements:

    I. India accounts for a very large portion of all equity option contracts traded globally, thus exhibiting a great boom. II. India’s stock market has grown rapidly in the recent past, even overtaking Hong Kong’s at some point in time. III. There is no regulatory body either to warn small investors about the risks of options trading or to act on unregistered financial advisors in this regard.

    Which of the statements given above are correct?

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

     

  • How India’s Pesticide Market is Changing

    The Growth is Now Coming Not from Insecticides or Fungicides, but Herbicides.

    Understanding the Three Major Types of Pesticides:

    Pesticides are chemical or biological substances used to protect crops by eliminating or controlling pests, diseases, or weeds. India’s pesticide market primarily consists of:

    • Insecticides: These control insects that damage crops by feeding on them or transmitting diseases.
    • Fungicides: These are used to prevent or eliminate fungal infections like mildew, blight, or rust that affect crop yield and quality.
    • Herbicides: These destroy or inhibit the growth of weeds that compete with crops for nutrients, water, and sunlight.

    Herbicides – The New Growth Driver of India’s Pesticide Market:

    India’s organised crop protection market is valued at approximately ₹24,500 crore. While insecticides (₹10,700 crore) remain the largest segment, herbicides (₹8,200 crore) have emerged as the fastest-growing category, with an annual growth rate exceeding 10%. This shift reflects a deeper transformation in India’s rural economy—one driven by labour scarcity, rising wage rates, and the need for mechanisation and efficiency in farm operations.

    Why Herbicides Are Gaining Ground:

    1. Labour Shortages in Agriculture: Manual weeding is time-consuming and labour-intensive. A labourer takes 8–10 hours to weed one acre, and the average daily wage has increased from ₹326 in 2019 to over ₹447 in 2024. Moreover, rural youth are increasingly moving away from agricultural work. This has led to a surge in herbicide use as a labour-saving input, similar to how tractors reduced the need for manual ploughing.
    2. Time-Saving and Cost-Effective: Power weeders are limited in closely spaced or deep-rooted crops. Herbicides, on the other hand, can be sprayed easily and reduce both labour dependence and turnaround time between cropping cycles.
    3. Strategic Use Patterns Emerging: Earlier, herbicides were used only after weed emergence (“post-emergent”). Now, farmers increasingly apply “pre-emergent” herbicides at or just after sowing to prevent weed growth from the beginning—reflecting a shift from reactive to preventive agriculture.

    Role of Indian Companies Amidst MNC Dominance:

    India’s crop protection sector remains largely dominated by multinationals like Bayer (Germany), Syngenta (Switzerland), Corteva (USA), and Sumitomo (Japan). However, Indian companies like Crystal Crop Protection Ltd (CCPL) and Dhanuka Agritech are rising players:

    1. CCPL acquired rights for key herbicides like Ethoxysulfuron and Gramoxone from global majors.
    2. It has also developed new products like ‘Sikosa’ in partnership with Battelle (USA) and Mitsui (Japan), showing how Indian firms are strategically expanding through innovation and collaboration.

    Why This Matters for India’s Agricultural Future

    1. Productivity Gains: Weeds reduce crop yield by competing for water and nutrients. Herbicides help ensure better resource absorption by crops.
    2. Supports Mechanisation: Like other farm machinery, herbicides reduce dependence on human labour and enable faster, scalable farming.
    3. Aligns with Climate-Resilient Agriculture: Timely and smart weed control reduces input waste and improves crop resilience.

    Key Concerns

    1. Ecological Impact: Excessive herbicide use can lead to soil degradation, water contamination, and loss of biodiversity.
    2. Labour Displacement: As weeding becomes chemical-driven, demand for rural manual labour might further decline.
    3. MNC Monopoly: Unlike seeds and fertilisers, pesticides remain MNC-dominated, raising questions on strategic autonomy in agri-inputs.

    Conclusion:

    The rise of herbicides in India’s pesticide market marks a significant transformation in agricultural input use. While they offer a timely solution to labour shortages and boost farm efficiency, a cautious, balanced, and indigenously empowered approach is necessary.

  • [pib] India Electric Mobility Index (IEMI)

    Why in the News?

    To support India’s net-zero transport goal by 2070, NITI Aayog launched the India Electric Mobility Index (IEMI) to track and rank States/UTs on their shift to electric mobility.

    [pib] India Electric Mobility Index (IEMI)

    About India Electric Mobility Index (IEMI):

    • Launched by: NITI Aayog in 2024.
    • Purpose: To evaluate and benchmark the progress of Indian States and Union Territories (UTs) in achieving their electric mobility and transport decarbonization goals.
    • Scoring: States and UTs are scored out of 100 using 16 indicators grouped under 3 core themes.
    • Core Themes:
      1. Transport Electrification Progress – Measures EV adoption across segments (2W, 3W, 4W, buses, etc.)
      2. Charging Infrastructure Readiness – Assesses public charging station density, coverage, and policy support.
      3. EV Research & Innovation Status – Tracks EV startups, R&D activity, patents, and skilling efforts.
    • Significance:
      • Supports tailored policymaking and cross-learning.
      • Enables transparency and healthy competition among states.
      • Aligns with India’s net-zero emissions target by 2070.
    • Methodology: Based on VAHAN data, charging infrastructure maps, and stakeholder consultations.
    • Accessibility: Publicly available dashboard and report for rankings, scores, and methodology.

    Key Highlights (2024 Edition):

    • Top Performers: Delhi, Maharashtra, and Chandigarh lead overall in EV readiness.
    • Category Leaders:
      • Transport Electrification: Delhi and Maharashtra.
      • Charging Infrastructure: Karnataka, Haryana, Himachal Pradesh, Ladakh.
      • Research & Innovation: Delhi, Tamil Nadu, Maharashtra, Karnataka, Telangana, Haryana.
    • EV Policy Status: 29 States/UTs have formal EV policies; 4 are in the draft stage.
    • EV Adoption Data:
      • EVs make up 5.3% of private vehicle sales in 2024.
      • Over 12 lakh EVs registered in India during the year.
    • Public Charging Network: India has over 25,000 public EV charging stations.
    • State Categories:
      • Performers: Karnataka, Tamil Nadu, Uttar Pradesh, Chhattisgarh, Odisha, Haryana, Goa.
      • Aspirants: Punjab, Rajasthan, Telangana, Andhra Pradesh, Assam, Bihar, Kerala, North-East states.
    [UPSC 2024] Which one of the following is the exhaust pipe emission from Fuel Cell Electric Vehicles powered by hydrogen?

    Options: (a) Hydrogen peroxide (b) Hydronium (c) Oxygen (d) Water vapour*

     

  • Sawalkote Hydro Project

    Why in the News?

    After suspending the Indus Waters Treaty, India is asserting water control in J&K by reviving the Sawalkote Hydroelectric Project — the UT’s largest planned hydro project.

    Sawalkote Hydro Project

    About Sawalkote Hydro Project:

    • Location: Ramban and Udhampur districts, Jammu and Kashmir.
    • River: Built on the Chenab River (a western river under the Indus Waters Treaty).
    • Agency: Implemented by National Hydroelectric Power Corporation.
    • History: Proposed in the 1960s; delayed due to Pakistan’s objections, environmental issues, and red tape. Revived after India suspended the Indus Waters Treaty post the April 2025 Pahalgam terror attack.
    • Status (2025): Forest clearance granted; tenders floated on 29 July 2025; declared a project of national importance.
    • Timeline: 96 months post-clearance; expected commissioning by or after 2032.

    Key Features:

    • Type: Run-of-the-river (utilizes the natural flow and elevation drop of a river) hydroelectric project.
    • Capacity: 1,856 Megawatts (8 × 225 MW + 1 × 56 MW).
    • Dam: 192.5 m high, roller-compacted concrete gravity dam; reservoir holds 550 million cubic meters.
    • Powerhouse: Underground, with Francis turbines.
    • Cost: ₹22,704.8 crore (~2.6 billion United States Dollars).
    [UPSC 2009] Gandhi Sagar Dam is a part of which one of the following?

    Options: (a) Chambal Project * (b) Kosi Project (c) Damodar Valley Project (d) Bhakra Nangal Project

     

  • Pollution Control can levy Environmental Damages: SC

    Why in the News?

    In a landmark ruling, the Supreme Court has empowered Pollution Control Boards (PCBs) across India with the authority to impose and collect restitutionary and compensatory damages under the Water and Air Acts.

    Key Highlights of Supreme Court Ruling:

    • Key Powers Granted:
      • Impose and collect restitutionary and compensatory damages.
      • Demand bank guarantees in anticipation of environmental harm.
    • Legal Basis:
      • Section 33A, Water Act, 1974: Power to issue directions for closure/regulation of industries and stoppage of utilities to enforce water pollution norms.
      • Section 31A, Air Act, 1981: Similar binding powers to control air pollution; non-compliance is a legal violation.

    About Central Pollution Control Board (CPCB):

    • Established: September 1974 under the Water (Prevention and Control of Pollution) Act, 1974; Also empowered under Air (Prevention and Control of Pollution) Act, 1981.
    • Role: Statutory technical body to promote clean air and water; provides services under the Environment (Protection) Act, 1986.
    • Key Functions:
      • Control and abate water and air pollution; promote stream and well cleanliness.
      • Advise the Central Government on pollution-related issues.
      • Coordinate with and assist State Pollution Control Boards (SPCBs); resolve disputes.
      • Monitor pollution in Union Territories via delegated powers under Water, Air, and Water Cess Acts.
    • Develops and revises:
      • National Ambient Air Quality Standards.
      • Water Quality Criteria from various sources.
      • Emission/Discharge Standards under Environment Protection Rules, 1986.
      • Bio-Medical Waste Incineration Norms.
      • Noise/Emission Limits for diesel, LPG, and CNG generators.
    • Minimal National Standards (MINAS) Issuance:
      • Covers effluent, emission, noise, and solid waste across industries.
      • Mandatory for State adoption as baseline standards.
      • Publishes COINDS (Comprehensive Industry Documents), manuals, and codes for pollution treatment and control systems.

    About State Pollution Control Boards (SPCBs):

    • Constitution: Formed by State Governments under the Water and Air Acts.
    • Functions:
      • Monitor and control local pollution.
      • Inspect industries and enforce compliance.
      • Advise state governments.
      • Conduct awareness campaigns.
      • Implement control programmes and collaborate with CPCB and local bodies.
    [UPSC 2018] How is the National Green Tribunal (NGT) different from the Central Pollution Control Board (CPCB)?

    1. The NGT has been established by an Act whereas the CPCB has been created by an executive order of the Government.

    2. The NGT provides environmental justice and helps reduce the burden of litigation in the higher courts whereas the CPCB promotes cleanliness of streams and wells and aims to improve the quality of air in the country.

    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

     

  • Asian Giant Tortoise reintroduced in Nagaland

    Why in the News?

    The Asian giant tortoise (Manouria emys), the largest tortoise in mainland Asia, has been reintroduced into the Zeliang Community Reserve in Nagaland’s Peren district.

    Asian Giant Tortoise reintroduced in Nagaland

    About Asian Giant Tortoise (Manouria emys):

    • It is the largest tortoise in mainland Asia.
    • Two subspecies: Manouria emys emys and Manouria emys phayrei.
    • Uniquely, it lays eggs above ground in leaf-litter nests.
    • Behaviour: It is solitary and active mostly during dawn and dusk.
    • Found in evergreen and bamboo forests across India, Bangladesh, Myanmar, Thailand, Malaysia, and Indonesia.
    • Habitat in India: Nengpui WLS, Nongkhyllem WLS, and North Cachar Hills.
    • Conservation status: IUCN – Critically Endangered; CITES – Appendix II; Wildlife Protection Act – Schedule IV.
    • Major threats: Illegal hunting for meat, habitat degradation, forest fires, and bamboo removal.
    [UPSC 2017] In India, if a species of tortoise is declared protected under Schedule I of the Wildlife (Protection) Act, 1972, what does it imply?

    Options: (a) It enjoys the same level of protection as the tiger*

    (b) It no longer exists in the wild, a few individuals are under captive protection; and how it is impossible to prevent its extinction

    (c) It is endemic to a particular region of India

    (d) Both (b) and (c) stated above are correct in this context.

     

  • Blockchain-verified Quantum Randomness for Secure Communication

    Why in the News?

    A recent breakthrough demonstrated use of quantum science, blockchain, and cryptography to create truly random and secure numbers used in encryption for secure communication.

    About the Technology:

    • Encryption: Converts readable data into unreadable code using a “key”; only someone with the correct key can decrypt the message.
    • Importance of Randomness: Secure encryption depends on unpredictable keys—predictable keys can be guessed or hacked.
    • Issue with Computers: Most keys are generated using pseudo-random algorithms, which appear random but are predictable if the method is known.

    About the Breakthrough Lava Lamp Method:

    • Setup: 100 lava lamps placed on a wall at Cloudflare’s San Francisco office; a camera takes periodic photos of the moving blobs.
    • Process: Each photo is converted into numerical data, creating a random seed to generate encryption keys.
    • Why Lava Lamps? The heat-driven movement of wax blobs is unpredictable and creates unique images.
    • Limitations: Movements follow physics, so not truly random. Also, the algorithm that converts images is deterministic—reproducible if known.

    Quantum Random Number Generation Protocol:

    • Why Quantum Physics: Subatomic particles like photons behave randomly; for example, a photon’s polarization is unknown until measured.
    • How It Works: Scientists used lasers to generate entangled photons and measured them millions of times to produce random results.
    • Data Conversion: The raw data (in binary) was biased, so a randomness extractor was used to generate a clean 512-bit unbiased number using a second random seed.
    • Blockchain Role: Each step was recorded on blockchain for transparency, with digital fingerprints (hashes) to ensure data integrity.
    • Team Involvement: National Institute of Standards and Technology (NIST), University of Colorado, and DRAND each handled separate parts to ensure decentralization and trust.
    • Public Use: The final random numbers are shared via CURBy, a public distribution service.
    • Significance: Though still emerging, this method shows strong potential for future ultra-secure encryption systems.
    [UPSC 2025] Consider the following statements:

    I. It is expected that Majorana 1 chip will enable quantum computing. II. Majorana 1 chip has been introduced by Amazon Web Services (AWS). III. Deep learning is a subset of machine learning.

    Which of the statements given above are correct?

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

     

  • Bird Deaths in Thar Desert

    Why in the News?

    A new study by the Wildlife Institute of India (WII) reveals that wind farms in the Thar Desert, Rajasthan, have the highest recorded bird mortality rates globally.

    Bird Deaths in Thar Desert

    Bird Mortality at Wind Farms: Key Findings

    • Study Details: Conducted across 3,000 sq. km in Jaisalmer, Rajasthan, covering 90 wind turbines and 272 bird species, including the critically endangered Great Indian Bustard.
    • Carcass Count: 124 bird carcasses found within 150m radius of turbines.
    • Annual Mortality Estimate: 4,464 birds per 1,000 sq. km, after corrections for detection gaps and scavenger interference.
    • Control Sites: 28 sites (500–2,000m from turbines) found zero carcasses — indicating turbines as the direct cause.
    • Reasons:
      • Policy Gap: Onshore wind projects in India do not require Environmental Impact Assessments (EIAs), which weakens ecological safeguards.

    India’s Wind Energy Growth:

    • Current Status: India added 3.5 GW of wind power in the first half of 2025 — an 82% YoY increase.
    • Total Installed Capacity: Now stands at 51.3 GW.
    • Untapped Potential: Estimated at 1163.9 GW at 150 meters above ground level (National Institute of Wind Energy).

    Comparison with Past Studies:

    • 2019 Studies: Recorded just 0.47 bird deaths per turbine/year in Kutch and Davangere.
    • Thar Desert Rate: 1.24 bird deaths per turbine/month — significantly higher.
    • Contributing Factors:
      • High bird density in Thar.
      • Location along Central Asian Flyway.
      • Collisions with turbine-linked power lines included in this study.

    Proposed Mitigation Measures:

    • Technological:
      • Paint one turbine blade for visibility.
      • Shut down turbines during peak migration or high-risk periods.
    • Planning-Based:
      • Careful Site Selection seen as most critical step.
      • Use of tools like AVISTEP (Avian Sensitivity Tool for Energy Planning), which maps avian sensitivity across India.
      • AVISTEP ranks zones as low to very high sensitivity — intended as a guide for site avoidance.
    [UPSC 2012] Vultures which used to be very common in Indian countryside some years ago are rarely seen nowadays. This is attributed to:

    Options: (a) the destruction of their nesting sites by new invasive species disease among them

    (b) a drug used by cattle owners for treating their diseased cattle persistent and fatal *

    (c) scarcity of food available to them

    (d) a widespread, persistent and fatal disease among them