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GS Paper: GS3

  • Mysterious Antimatter Physics discovered at CERN Large Hadron Collider

    Why in the News?

    CERN scientists have detected a tiny but significant difference in how matter and antimatter versions of baryons behave — offering clues to why matter dominates the universe, despite both being created equally after the Big Bang.

    What is CERN’s LHCb Experiment?

    • Location: At the Large Hadron Collider near Geneva, on the France–Switzerland border.
    • Name: LHCb = Large Hadron Collider beauty; focuses on beauty (bottom) quarks.
    • Started: Built in early 2000s; began collecting data in 2009.
    • Purpose: Studies particle decay, especially of beauty quark-containing particles, to test the Standard Model and search for small anomalies.

    Matter vs Antimatter – The Big Puzzle:

    • Matter: Everything around us is made of it.
    • Antimatter: Mirror image of matter, with opposite charges.
    • Big Bang Theory: Both should have been produced equally — and destroyed each other.
    • But…: Only matter remains — a mystery science is still trying to solve.
    • CP Symmetry: Physics expects matter and antimatter to behave identically (Charge-Parity symmetry).
    • CP Violation: When this symmetry breaks — possibly explaining why matter survived.

    What did Scientists Discover?

    • Focus: Lambda-b baryons and their antimatter versions.
    • Finding: A small but clear CP violation — they decayed differently.
    • Significance: First such discovery in baryons (previously seen only in mesons).
    • Certainty: Highly reliable — only 1 in 3.5 million chance it’s random.

    Why is this Important?

    • Helps explain why the universe is made of matter.
    • Expands discovery of CP violation to heavier particles.
    • Could hint at physics beyond the Standard Model.
    • Moves us closer to solving one of the universe’s biggest mysteries.
    [UPSC 2013] The efforts to detect the existence of Higgs boson particle have become frequent news in the recent past. What is/are the importance/importances of discovering this particle?

    1. It will enable us to under-stand as to why elementary particles have mass. 2. It will enable us in the near future to develop the technology of transferring matter from one point to another without traversing the physical space between them. 3. It will enable us to create better fuels for nuclear fission.

    Select the correct answer using the codes given below.

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

     

  • [16th July 2025] The Hindu Op-ed: How is global shipping trying to decarbonise?

    PYQ Relevance:

    [UPSC 2022] Discuss global warming and mention its effects on the global climate. Explain the control measures to bring down the level of greenhouse gases which cause global warming, in the light of the Kyoto Protocol, 1997.

    Linkage: The fundamental objective behind global shipping’s decarbonization efforts is to reduce the level of greenhouse gases (GHGs) to combat global warming. The shift to green fuels like green ammonia and e-methanol by the shipping industry represents a crucial “control measure” aimed at achieving this objective.

     

    Mentor’s Comment:  India is positioning itself as a global hub for green marine fuels like green methanol and green ammonia, aligning with global shipping’s decarbonisation goals by 2040–2050. With strong policy support, India is accelerating electrolyser manufacturing, advancing carbon capture technologies, and reviving its shipbuilding sector. By promoting green fuel exports, the country aims to seize a strategic opportunity in the global transition to clean energy and assert its maritime leadership in the emerging green shipping economy.

    Today’s editorial analyses the green fuels in shipping decarbonisation. This topic is important for  GS Paper III (Environment) in the UPSC mains exam.

    _

    Let’s learn!

    Why in the News?

    Recently, Global shipping is moving towards reducing carbon emissions by 2040–2050, which offers a major opportunity for India. Currently, most merchant ships run on fuels like Very Low Sulphur Fuel Oil (VLSFO), diesel, and liquefied methane gas.

    What are green fuels?

    • Green fuels are derived from green hydrogen, which is produced by electrolysis of water using renewable energy (e.g., solar, wind). Green ammonia is created by combining green hydrogen and nitrogen.
    • Green methanol is produced from green hydrogen and CO₂ (captured from industrial sources). These fuels are carbon-neutral or low-carbon alternatives to conventional shipping fuels like VLSFO or LNG.

    How do green fuels aid in shipping decarbonisation?

    • Reduction of Greenhouse Gas Emissions: Green fuels like green methanol and green ammonia significantly reduce or eliminate CO₂ and GHG emissions compared to traditional fossil fuels such as VLSFO and LNG. Eg: Green methanol emits about 10% of CO₂ compared to VLSFO, while green ammonia emits virtually zero greenhouse gases.
    • Compatibility with Existing Systems (for Transition): Green methanol is a suitable transitional fuel requiring minimal retrofitting of existing ship engines, supporting a smooth shift from fossil fuels. Eg: Over 360 methanol-capable ships are already in service or on order, including by global giants like Maersk and CMA CGM.
    • Enables Compliance with Future Emission Norms: Adoption of green fuels ensures alignment with global decarbonisation goals and helps meet emission standards set for 2040–2050 by international maritime bodies. Eg: India’s initiative to build green fuel hubs at Tuticorin and Kandla supports compliance with IMO’s emission targets.

    How can India become a global hub for marine green fuel production?

    • Utilising Coastal Industrial Clusters for Integrated Green Fuel Zones: India can leverage existing coastal industrial zones to integrate green fuel production with port logistics, reducing supply chain costs and boosting efficiency. Eg: The Mumbai–Pune industrial corridor near the Jawaharlal Nehru Port can be developed into a green methanol hub with co-located renewable energy, CO₂ sources, and export terminals.
    • Exporting Green Fuels Through Strategic Trade Partnerships: By forging long-term green energy export agreements with fuel-deficit countries, India can secure demand and scale up production. Eg: A partnership with the European Union’s FuelEU Maritime initiative could enable India to export green methanol to European ports aiming for carbon-neutral shipping.
    • Establishing Research and Innovation Centers in Maritime States: Setting up marine green fuel R&D centres in states like Tamil Nadu, Andhra Pradesh, or Odisha can drive innovation in fuel production, storage, and engine retrofits. Eg: A dedicated Marine Energy Innovation Park in Visakhapatnam could support pilot projects for green ammonia engines and advanced electrolyser technology.

    What are the challenges? 

    • High Capital Costs and Infrastructure Requirements: Transitioning to green fuels requires significant investments in retrofitting ships, building new vessels, and developing bunkering infrastructure. Eg: Installing methanol-compatible systems or ammonia handling setups onboard involves major design changes and safety adaptations, slowing adoption.
    • Limited Availability and High Price of Green Fuels: Green fuels like e-methanol and green ammonia are still expensive and scarce due to high renewable electricity costsand limited production capacity. Eg: In February, e-methanol cost $1,950/tonne in Singapore, compared to $560/tonne for VLSFO, making the shift economically difficult.

    What are the policy and financial tools that are key to scaling green methanol in India?

    • Sovereign Guarantees and Off-take Assurance: Government-backed sovereign guarantees reduce investment risks and enable access to low-cost international finance, while off-take agreements ensure steady demand, improving project bankability.
    • Production-Linked Incentives (PLI) and Domestic Manufacturing Support: PLI schemes for electrolyser manufacturing help reduce import dependence, lower production costs, and localise the green fuel value chain.
    • Carbon Capture and CCUS Incentives: Policy incentives for Carbon Capture, Utilisation, and Storage (CCUS) make it viable to obtain CO₂ from industrial sources, which is essential for green methanol production using green hydrogen.

    In what ways can green fuel shipbuilding boost India’s maritime sector?

    • Revival of Domestic Shipyards through High-Value Orders: Building green fuel-compatible ships can generate consistent demand for Indian shipyards, modernising infrastructure and creating skilled employment. Eg: Reviving the Hindustan Shipyard Limited (HSL) in Andhra Pradesh with contracts for green ferries and coastal cargo vessels can reinvigorate domestic shipbuilding.
    • Enhancing India’s Global Ship Export Potential: Developing expertise in green shipbuilding can position India as an exporter of eco-friendly vessels to emerging markets transitioning to low-emission fleets. Eg: India can export hybrid-electric and green methanol-compatible vessels to island nations in the Indian Ocean and Africa implementing IMO emission norms.
    • Strengthening India’s Role in the Green Maritime Supply Chain: Green shipbuilding can attract global OEMs and technology partners, integrating India into the international green maritime supply chain. Eg: Setting up a Green Marine Innovation Cluster in Kochi with global collaboration could turn the region into a hub for next-gen ship components and propulsion systems.

    Case study: 

    • Denmark – Green Methanol Leadership: Denmark, through Maersk, is leading the global shift to green methanol-powered shipping, with multiple vessels ordered and partnerships for fuel production. Government support and private sector collaboration have positioned Denmark as a model for green shipping innovation and sustainable maritime infrastructure.
    • Japan – Advancing Green Ammonia Shipping: Japan is pioneering green ammonia as a marine fuel with state-backed funding, R&D, and prototype vessels under companies like NYK Line. Its investments in ammonia bunkering infrastructure and domestic shipbuilding are helping build a complete green maritime ecosystem.

    Way forward: 

    • Develop Integrated Green Maritime Ecosystems: India should establish green fuel production, bunkering, and shipbuilding hubs along key coastal regions by combining policy incentives, infrastructure investment, and private sector participation.
    • Leverage Financial Tools and Global Partnerships: Use sovereign guarantees, PLI schemes, and international green financing to scale up green methanol projects, while forging strategic trade and technology alliances with global maritime leaders.

  • Rhino DNA Index System (RhODIS)

    Why in the News?

    The Assam Forest Department is conducting DNA profiling of 2,500 rhino horns using the Rhino DNA Index System (RhODIS) to aid wildlife forensics and curb illegal trade.

    What is Rhino DNA Index System (RhODIS)?

    • Overview: It is a wildlife forensic tool designed to combat rhino poaching through DNA profiling.
    • Development: It was originally developed by South Africa and later adapted for use in India.
    • Working: The system helps build a genetic database of individual rhinos by collecting DNA from horns, tissues, dung, or blood samples.
    • Utility: Each rhino has a unique DNA profile, making it possible to match confiscated horns with individual animals or poaching locations.
    • Implementing Agency: In India, the Wildlife Institute of India (WII) is responsible for RhODIS genetic analysis under the RhODIS India program.
    • Applications of RhODIS: The system plays a vital role in linking seized rhino horns to poaching incidents, providing admissible forensic evidence in court cases, tracking illegal wildlife trade routes and criminal networks, and monitoring genetic diversity and population health over time.

    About One-Horned Rhinoceros:

    • Overview: The Greater One-Horned Rhinoceros (Rhinoceros unicornis) is a herbivorous megafauna species native to the Indian subcontinent.
    • Distinctive Features: It is also called the Indian rhinoceros and is characterized by its single black horn and thick, armor-like skin.
    • Conservation Status: It is listed as Vulnerable on the IUCN Red List, in Appendix I of CITES, and under Schedule I of the Wildlife Protection Act, 1972 (India).
    • Major Habitats in India: Its primary habitats include Kaziranga, Pobitora, Manas, and Orang National Parks in Assam; Jaldapara and Gorumara National Parks in West Bengal; and the Dudhwa Tiger Reserve in Uttar Pradesh.
    • Population Growth: Its has increased from around 1,500 in the 1980s to over 4,000 in 2024, with Assam alone holding 80% of the global population. Kaziranga National Park houses the largest population, with 2,613 rhinos as per 2022 data.
    • Primary Threats: Major threats include poaching for horns driven by illegal wildlife trade and false beliefs about medicinal value, as well as habitat degradation due to floods, encroachment, and climate change.
    • Indian Rhino Vision 2020 (Project Rhino):  It was launched in 2005, aimed to spread the rhino population across seven protected areas.
    [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

     

  • [pib] Indian Council of Agricultural Research (ICAR) at 97

    Why in the News?

    The Indian Council of Agricultural Research (ICAR) celebrated its 97th Foundation Day, marking nearly a century of contributions to Indian agriculture.

    About ICAR:

    • Overview: ICAR is an autonomous organization under the Department of Agricultural Research and Education (DARE), Ministry of Agriculture and Farmers Welfare, Government of India.
    • Establishment: It was established on 16 July 1929 as the Imperial Council of Agricultural Research, following the recommendations of the Royal Commission on Agriculture.
    • Legal Framework: It functions as a registered society under the Societies Registration Act, 1860.
    • Headquarters: ICAR is headquartered in New Delhi and serves as the apex body for coordinating and managing agricultural research and education across the country.
    • Structure: ICAR oversees a vast network of 113 research institutes and 74 agricultural universities, making it one of the largest national agricultural systems globally.
    • Functions: It supports research in agriculture, horticulture, fisheries, animal sciences, and natural resource management.

    Key Accomplishments of ICAR:

    • Record Agricultural Production: India achieved record foodgrain production of 353.95 million tonnes in 2024–25. It became the largest global producer and exporter of rice and the top producer of milk (239.3 million tonnes), while ranking second in wheat, horticultural output, and fish production (18.42 million tonnes).
    • Major Initiatives and Campaigns: It launched programmes such as One Scientist One Product, 100 Days 100 Varieties and Viksit Krishi Sankalp Abhiyan (reaching 1.35 crore farmers).
    • Crop Science Research: Developed 679 field crop varieties, including 27 bio-fortified ones; introduced the world’s first genome-edited rice; improved varietal replacement in pulses and oilseeds; supported basmati rice exports worth ₹50,000 crore.
    • Horticultural Innovation: Released 83 new varieties across fruits, vegetables, spices, flowers, and medicinal plants; distributed over 22 lakh high-quality planting materials; set up 9 Clean Plant Centres for disease-free germplasm.
    • Fisheries Development: Implemented precision shrimp farming systems with high efficiency; developed low-carbon marine fish products and nutraceutical feeds; standardized breeding for 7 fish species.
    • Natural Resource Management: Created a National Soil Spectral Library with 40,000 samples; developed 35 Good Agricultural Practices; promoted climate-resilient villages and crop diversification; reduced methane emissions in rice by 18% using microbial consortia.
    • Livestock Sector Contributions: Registered 10 indigenous breeds; developed 5 vaccines and 7 diagnostic kits; distributed over 14.09 lakh poultry germplasm; introduced smart sensors for dairy quality monitoring.
    • Major National Programmes: Launched the Global Centre of Excellence on Millets (Shree Anna), genome editing in 40 crops, the Second National Gene Bank, the MAHARISHI (Millets and Ancient Grains) Initiative, and national missions on edible oils, cotton, and emerging biotic threats.
    [UPSC 2018] With reference to the Genetically Modified mustard (GM mustard) developed in India, consider the following statements:

    1. GM mustard has the genes of a soil bacterium that give the plant the property of pest-resistance to a wide variety of pests.

    2. GM mustard has the genes that allow the plant cross-pollination and hybridization.

    3. GM mustard has been developed jointly by the IARI and Punjab Agricultural University.

    Which of the statements given above is/are correct?

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

     

  • New butterfly species Zographetus mathewi found in Western Ghats

    Why in the News?

    A team of Indian conservationists has identified a new butterfly species, Zographetus mathewi, in the biologically rich Western Ghats.

    About Zographetus mathewi

    • Overview: Zographetus mathewi is a newly identified species of skipper butterfly.
    • Taxonomic Classification: It belongs to the family Hesperiidae and the genus Zographetus Watson, 1893.
    • Distribution: This species is endemic to the low-elevation forests of Kerala, Western Ghats.
    • Genus: It is the 15th species in the Zographetus genus and the 5th recorded in India.
    • Publication and Naming: Published in the journal Entomon, the butterfly was named in honour of George Mathew, a noted Indian entomologist.

    Key Features of Zographetus mathewi

    • Similarity with Other Species: It closely resembles Zographetus ogygia but differs in wing venation patterns and genitalia structure in both male and female butterflies.
    • Species Group Traits: It belongs to the Zographetus satwa species-group, which is known for swollen forewing veins in males as a secondary sexual trait, a distinct basal hair tuft on the underside of the forewing, and yellow-ochre scaling on the hindwing underside.
    [UPSC 2025] Regarding Peacock tarantula (Gooty tarantula), consider the following statements :

    I. It is an omnivorous crustacean.

    II. Its natural habitat in India is only limited to some forest areas.

    III. In its natural habitat, it is an arboreal species.

    Which of the statements given above is/are correct?

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

     

  • [15th July 2025] The Hindu Op-ed: Why is corporate investment lagging behind?

    PYQ Relevance:

    [UPSC 2022] “Economic growth in the recent past has been led by increase in labour productivity.” Explain this statement. Suggest the growth pattern that will lead to creation of more jobs without compromising labour productivity.

    Linkage: The article talks about the corporate investment in India has been lagging, with industrial production slowing down. This question touches on the nature of economic growth and job creation, which is directly linked to investment patterns and their ability to generate sufficient employment. 

     

    Mentor’s Comment:  India’s Index of Industrial Production (IIP) growth slowed to a nine-month low of 1.2%, raising concerns over sluggish corporate investment despite tax cuts, public capital expenditure, and monetary easing. This has reignited debate on the causes of low investment, drawing from Marxist economic theories by Luxemburg and Baranovsky, and highlighting the need for demand revival and effective government stimulus to reboot the economy.

    Today’s editorial analyses the slow corporate investment in India. This topic is important for  GS Paper III (Indian Economy) in the UPSC mains exam.

    _

    Let’s learn!

    Why in the News?

    Recently, India’s industrial output growth dropped to a nine-month low of 1.2%, raising worries about slow corporate investment.

    Why has corporate investment remained low despite tax cuts, capex, and rate cuts?

    • Weak Consumer Demand: Despite tax cuts and improved corporate profits, investment remains low due to insufficient consumer demand in the economy. Eg: Even after the 2019 corporate tax cut (from 30% to 22%), private sector investment in machinery and intellectual property grew only 35% over four years (FY20–FY23), as noted in the 2024-25 Economic Survey.
    • Excess Industrial Capacity: Many industries are operating at suboptimal capacity, making firms hesitant to invest in new production facilities. Eg: With underutilised factories post-COVID, private players see no incentive to expand despite low interest rates and high liquidity.
    • Misreading of Profit-Investment Link: The assumption that higher profits lead to more investment is flawed. As per Michał Kalecki, investment determines profits, not the other way around. Eg: Without a revival in demand, businesses avoid investment regardless of profitability, due to uncertainty about returns.

    About Rosa Luxemburg and Mikhail Tugan-Baranovsky:

    • Rosa Luxemburg (1871–1919): A Polish-German Marxist economist and revolutionary, Luxemburg was known for her critique of capitalist accumulation.
    • Mikhail Tugan-Baranovsky (1865–1919): A Russian economist and early Marxist thinker, Baranovsky challenged traditional Marxist views with his theories on industrial cycles.

    What do Luxembourg and Baranovsky argue about investment in capitalism?

    • Baranovsky’s View – Investment Generates Its Own Market: He argued that in capitalism, investment can sustain itself as long as there is a balanced ratio between the consumption and investment sectors. He believed that machines can produce more machines, and investment can occur even without final consumption demand.
    • Luxemburg’s Counter–Investment Depends on Demand: Luxembourg disagreed, stating that individual capitalists base investment decisions on anticipated demand. If demand is weak and existing capacity underused, capitalists avoid new investments, making demand revival essential for capital accumulation.

    What limits the effectiveness of government capex in crowding in private investment?

    Note: Government capex refers to the expenditure on creating long-term assets such as infrastructure (roads, railways, ports), schools, hospitals, and defence equipment.

    • Gestation lags of infrastructure projects: Large public investments in infrastructure (like ports, highways, railways) take years to become operational. Until completed, they do not immediately enhance productivity or reduce logistics costs, thus delaying private sector response.
    • High import content in capex: A significant portion of government capex may be spent on imported machinery or inputs, which leaks demandout of the domestic economy. This reduces the multiplier effect and fails to generate sufficient local demand for private sector goods and services.
    • Low employment intensity of capex projects: Many infrastructure projects are capital-intensive but not labour-intensive, meaning they create few jobs. This limits income generation and consumer demand, reducing the incentive for private firms to expand production capacity.

    Why is demand revival essential for boosting investment?

    • Drives Capacity Utilisation: When consumer demand rises, existing production units approach their full capacity. This encourages private firms to invest in expanding their capacity to meet growing market needs.
    • Reduces Investment Risk: Strong and predictable demand provides confidence to investors that they will earn returns on capital. Without sufficient demand, firms fear underutilisation of new assets and avoid fresh investments.
    • Stimulates a Virtuous Economic Cycle: Higher demand leads to higher sales, which increases profits, employment, and further consumer spending. This self-reinforcing cycle sustains investment momentum and boosts overall economic growth.

    What is the state’s role?

    • Stimulating Demand through Public Spending: The state plays a counter-cyclical role by increasing government expenditure, especially during economic slowdowns. Eg: Large-scale infrastructure investments in roads, railways, and housing under PM Gati Shakti generate demand, jobs, and confidence in the private sector.
    • Providing Exogenous Stimuli for Investment: The state acts as a catalyst by injecting external demand and resources into the economy when private demand is weak. Eg: PLI (Production-Linked Incentive) schemes offer incentives for capital expenditure in key sectors like electronics and pharma, attracting private investment.
    • Ensuring Access to Affordable Finance: The state, through monetary and fiscal institutions, helps ensure easy credit availability and interest rate stability. Eg: The Reserve Bank of India’s rate cuts and liquidity measures during COVID-19 were aimed at making credit cheaper for industries to invest.

    Way forward: 

    • Focus on Demand Revival: The government must prioritize income support, especially for lower-income households, through targeted welfare schemes and employment guarantees. This will boost consumption, which is essential for stimulating private sector investment.
    • Enhance the Multiplier Effect of Capex: Public capital expenditure should be labour-intensive, locally sourced, and designed to reduce import leakages. This will maximize domestic demand generation and strengthen the crowd-in effect on private investment.

  • Why some PLI schemes are in the slow lane?

    Why in the News?

    Six out of the 14 Production-Linked Incentive (PLI) schemes, including textiles, solar modules, IT hardware, automobiles, advanced chemical cells (ACC), and speciality steel, are progressing at a relatively slower pace.

    What are the primary reasons for the slow implementation of PLI schemes?

    • Stringent Eligibility Norms: Many industries have reported that the eligibility criteria for participation in PLI schemes are too stringent, which limits the number of companies that can benefit from the incentives.
    • Initial Setup Challenges: Establishing a domestic manufacturing base from scratch is a monumental task. Industries such as solar modules and advanced chemistry cells (ACC) require substantial time—ranging from one-and-a-half to three years—to set up manufacturing operations, delaying employment generation.
    • Access to Resources: Companies face difficulties in accessing critical resources, including Chinese machinery and skilled technicians, which can hinder their ability to ramp up production quickly.
    • Market Dependency: Some sectors remain heavily reliant on imports and have not yet transitioned to a self-sufficient manufacturing model, impacting their growth under the PLI framework.
    • Slow Disbursement of Funds: The initial years of the scheme saw minimal disbursement of funds, with only a small percentage of the total incentive outlay being paid out in the first two years.

    Which sectors are experiencing the most significant slowdowns, and why?

    • Textiles: This sector is struggling due to high competition and stringent norms that have slowed down participation and growth.
    • Solar Modules: Despite being a strategic sector for renewable energy, delays in establishing manufacturing capabilities have led to slow progress.
      • As of June 2024, India’s solar module manufacturing capacity reached 77.2 GW, but the solar cell capacity was only 7.6 GW, leading to supply shortages that delayed projects.
    • Automobiles: While some companies are making progress, the automobile sector overall is hindered by initial setup challenges and fluctuating market conditions. 
      • Factors such as rising raw material costs and shifts in consumer preferences towards electric vehicles are creating a complex environment for traditional automakers.
    • Advanced Chemical Cells (ACC): Similar to solar modules, this sector faces long commissioning periods that delay employment outcomes. Because of the lengthy development timelines for manufacturing facilities and the need for substantial investment in technology are contributing to slower growth in this strategic area.
    • IT Hardware: Although recently upgraded with increased funding, it still lags behind in implementation compared to more successful sectors like mobile manufacturing.

    What measures can be taken to enhance the effectiveness of PLI schemes? (Way forward)

    • Revising Eligibility Criteria: Simplifying the eligibility requirements could encourage more companies, especially smaller firms, to participate in the schemes and benefit from incentives.
    • Increasing Support for Supply Chains: Establishing robust supply chains is crucial. The government could provide additional support to smaller suppliers who are essential for scaling up production across sectors.
    • Streamlining Resource Access: Facilitating easier access to necessary machinery and skilled labor can help companies ramp up production more effectively and reduce dependency on imports.
    • Regular Reviews and Adjustments: Continuous monitoring and adjustments based on sector performance can help identify bottlenecks early and allow for timely interventions.
    • Encouraging Ancillary Industries: Promoting the establishment of ancillary industries around larger beneficiaries could create additional jobs and enhance local manufacturing capabilities.

    Mains question for practice:

    Q Evaluate the challenges in the implementation of the Production-Linked Incentive (PLI) schemes in India. Highlight the sectors experiencing significant slowdowns and suggest measures to enhance the effectiveness of these schemes. (250 words) 15M

    Mains PYQ:

    Q  Can the strategy of regional-resource based manufacturing help in promoting employment in India?. (UPSC IAS/2019)

  • [pib] Breakthrough in Quantum Noise Research

    Why in the News?

    Researchers at the Raman Research Institute (RRI) found that quantum noise—usually seen as a problem—can sometimes help connect particles in a special way called entanglement, which is important for future quantum technologies.

    What is Quantum Noise?

    • Overview: Quantum noise refers to random disturbances that affect quantum systems, often causing loss of coherence or decoherence.
    • Traditional View: It is typically seen as harmful, especially for quantum entanglement, which is crucial for quantum computing and communication.
    • Entanglement Concept: It is a phenomenon where particles are so correlated that the state of one instantly affects the state of another, even at a distance.
    • Effect of Decoherence: Noise-induced decoherence breaks this entanglement, thereby reducing the efficiency of quantum technologies.

    Key Findings:

    • Observation: Found that quantum noise can generate or revive entanglement, contrary to its typical reputation as destructive.
    • Focus Area: Studied intraparticle entanglement, which involves internal properties (like spin and path) of a single particle.
    • Contrast with Interparticle Entanglement: Unlike interparticle entanglement (between separate particles), intraparticle entanglement showed resilience under noise.
    • Types of Noise Studied:
      • Amplitude Damping: Energy loss
      • Phase Damping: Loss of phase information
      • Depolarizing Noise: Random changes in quantum state
    • Major Observation: Under amplitude damping, intraparticle entanglement showed delayed decay, revival, and even creation from unentangled states.
    • Interparticle Comparison: In contrast, interparticle entanglement exhibited steady decay with no revival or generation.

    Scientific Implications:

    • New Perspective: Challenges the assumption that quantum noise is purely harmful, showing it can be a resource in certain contexts.
    • Technological Potential: Intraparticle entanglement is more noise-resilient, making it valuable for stable quantum devices.
    • Application Areas: Findings are relevant to quantum communication, QKD (quantum key distribution), quantum computing, and quantum sensing.
    • Predictive Advantage: The new formula allows precise prediction of entanglement behavior, aiding the design of robust systems.
    • Platform Independence: Results are platform-agnostic, applicable to photons, neutrons, trapped ions, etc.
    [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?

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

     

  • Scientists decode Locust Pheromones for Eco-Friendly Control

    Why in the News?

    Researchers in China have discovered a method to curb locust swarming by manipulating their pheromones, paving the way for eco-friendly locust control.

    What are Locust Swarms?

    • Locusts are large grasshoppers capable of forming massive swarms, consuming up to their body weight in food daily, and travelling 150 km/day with favourable winds.
    • They are highly destructive, stripping crops and threatening food security. A single swarm can consume food equivalent to the daily needs of 35,000 people.
    • In India, Locust Control and Research (LC&R) oversees locust management.
    • The Locust Warning Organisation (LWO), established in 1939, monitors and controls locust activity in states like Rajasthan, Gujarat, Punjab, and Haryana.
    • The 2019-2022 desert locust outbreak was one of the worst in decades, devastating India, Pakistan, and East Africa, destroying over 200,000 hectares of crops.
    • Despite existing control measures, locust outbreaks remain difficult to manage due to their rapid breeding capabilities.

    About Locust Pheromones:

    • Locust Behavioural Phases: Locusts exhibit two behavioural phases—solitary (non-swarming) and gregarious (swarming). The shift to gregariousness leads to swarm formation.
    • Key Pheromone – 4-Vinylanisole (4VA):
      • Identified in 2020 by Chinese researchers.
      • Released from locusts’ hind legs after feeding, especially due to the digestion of phenylalanine (a plant compound).
      • Acts as an aggregation pheromone, attracting other locusts and triggering group behaviour.
    • Biochemical Pathway:
      • Enzymes 4VPMT1 (dominant) and 4VPMT2 convert a precursor molecule (4VP) into 4VA.
      • This process is crucial in converting solitary locusts into swarm-forming gregarious ones.

    Recent Breakthrough and Its Implication:

    • Discovery: Researchers at the Chinese Academy of Sciences genetically blocked 4VPMT1, preventing locusts from producing 4VA and stopping swarm formation.
    • Limitations: 4NP is toxic and environmentally persistent, raising concerns for large-scale deployment.
    • Strategy Proposed: RNA interference (RNAi)-based biopesticides targeting 4VPMT genes to prevent 4VA production without toxicity.
    • Wider Implications:
      • Marks the first pollution-free molecular approach to locust control.
      • Can reduce reliance on synthetic pesticides, protect crops, and support sustainable agriculture.
      • Offers a precision pest control model based on insect behavioural biochemistry.
    [UPSC 2001] American multinational company, Monsanto has produced an insect-resistant cotton variety that is undergoing field- trials in India. A toxin gene from which ONE of the following bacteria has been transferred to this transgenic cotton ?

    Options: (a) Bacillus subtilis (b) Bacillus thurigiensis* (c) Bacillus amyloliquifanciens (d) Bacillus globlii

     

  • Inflation Hits 77-Month Low

    Why in the News?

    India’s inflation indicators have shown a significant downward trend, with the Consumer Price Index (CPI) dropping to a 77-month low of 2.1% in June 2025, and the Wholesale Price Index (WPI) contracting by -0.13%, marking its first decline in 20 months.

    Key Highlights on Inflation (June 2025):

    • Consumer Price Index (CPI) inflation dropped to 2.1%, the lowest in 77 months (since January 2019).
    • Wholesale Price Index (WPI) contracted by -0.13%, marking its first decline in 20 months.
    • Food and Beverages (CPI component) registered deflation of 0.2%, after being at 8.4% in June 2024.
    • WPI Food Articles saw a sharp fall of 3.75%, compared to 11.1% inflation in June 2024.
    • Crude Petroleum and Natural Gas (WPI) prices contracted by 12.3%, the 10th straight month of decline.
    • Inflation in Fuel and Light (CPI) eased to 2.55% (from 2.8% in May 2025).
    • Housing inflation increased marginally to 3.24%, while Pan, Tobacco and Intoxicants stayed stable at 2.4%.

    Back2Basics: Consumer Price Index (CPI) vs. Wholesale Price Index (WPI)

    Consumer Price Index (CPI) Wholesale Price Index (WPI)
    Definition Measures the change in retail prices of goods and services consumed by households Measures the change in wholesale prices of goods traded between businesses
    Compiled By National Statistical Office (NSO), Ministry of Statistics and Programme Implementation (MoSPI) Office of Economic Adviser, Ministry of Commerce and Industry
    Base Year 2012 (CPI-Industrial Workers has 2016 as base year) 2011–12
    Coverage Goods and Services Only Goods
    Data Collection Prices from 1,181 villages & 1,114 urban markets across India Prices collected from wholesale markets, factories, and mandis
    Purpose/Use Measures retail inflation, used for the RBI’s inflation targeting and monetary policy decisions Measures producer-level inflation, used as a GDP deflator
    Users Consumers, RBI, Government (for social welfare schemes like DA/DR) Policymakers, manufacturers, and financial markets
    Publication Frequency Monthly Monthly
    Number of Items 299 items 697 items
    Components – Food & Beverages (45%)
    – Housing (10%)
    – Fuel & Light (6.8%)
    – Miscellaneous (services, etc.) (28.3%)
    – Clothing & Footwear (6.5%)
    – Pan, Tobacco & Intoxicants (2.4%)    		 – Primary Articles (22.6%)
    – Fuel & Power (13.2%)
    – Manufactured Products (64.2%)
    Weight of Food Items High (~45%) Lower (~24.4%)
    Impact on Economy Direct impact on consumer purchasing power and cost of living Indicates trends in production costs and supply chain
    Volatility More volatile due to food and fuel price changes Less volatile due to base price considerations
    Use in Policy Directly used by RBI for inflation targeting (e.g., 4% CPI target) Used for GDP deflation, price policy formation
    Criticism May not reflect production-side price pressures Does not capture consumer-level inflation or services
    Inflation Indicator Preferred indicator for common people More relevant to manufacturers and wholesale traders

     

    [UPSC 2021] With reference to the Indian economy, demand-pull inflation can be caused or increased by which of the following:

    1. Expansionary policies 2.Fiscal stimulus 3.Inflation-indexing of wages 4.Higher purchasing power 5.Rising interest rates

    Select the correct answer using the code given below:

    Options: (a) 1, 2, and 4 only* (b) 3, 4, and 5 only (c) 1, 2, 3, and 5 only (d) 1, 2, 3, 4, and 5