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GS Paper: GS3-16.Achievements of Indians in Science & Technology

  • DRDO’s flight trial of high-altitude platform successful

    DRDO’s flight trial of high-altitude platform successful

    Why in the News

    India’s plan for a long-endurance stratospheric surveillance platform has moved from design to a working flight, as an indigenous craft reached the stratosphere and held its height there. The Defence Research and Development Organisation (DRDO) conducted the flight trial of the experimental High-Altitude Platform (HAPS).

    What is a High-Altitude Platform?

    1. What it is: A HAPS is an uncrewed craft that floats in the stratosphere, the calm layer of air above the weather and airline routes. It works like a satellite that hovers over one area.
    2. Lighter than air: This platform is a lighter-than-air system, lifted by gas like a balloon or airship, so it needs little power to stay aloft.
    3. Purpose: DRDO is designing it as a long-endurance aerial surveillance platform, meant to watch a region for long periods.
    4. Instruments: It carried an inertial measurement unit, which tracks motion and orientation, plus a Global Positioning System (GPS) receiver, cameras and an altitude-control mechanism.
    5. The takeaway: A craft that can stay in the stratosphere gives India a persistent watch over a region without launching a satellite.

    What did the trial show?

    1. Developer: The Aerial Delivery Research and Development Establishment (ADRDE), Agra, built the platform.
    2. Altitude reached: The experimental platform rose to 21 km above mean sea level.
    3. Holding height: It stayed at 20 km for more than 30 minutes, which tested its altitude control.
    4. Earlier step: ADRDE had flown a stratospheric airship prototype to about 17 km from Sheopur, Madhya Pradesh, in May 2025.
    5. Recognition: The Defence Minister congratulated DRDO, the Indian Air Force (IAF), public sector undertakings and industry, calling the trial a milestone for Aatmanirbhar Bharat.

    Why does a stratospheric platform matter?

    1. Above the weather: At this height the craft flies above clouds and airliners, which cruise at about 10 to 12 km.
    2. Persistent watch: Orbiting satellites pass overhead and move on. A HAPS can stay over one area, such as a border, for long periods.
    3. Lower cost: The platform can be launched, brought back and re-equipped, so it costs far less than building and launching a satellite.
    4. Wider uses: The same platform can relay communications and support disaster monitoring in remote areas.

    Challenges

    1. Endurance gap: Half an hour aloft is far short of the weeks a useful surveillance platform must stay up.
    2. Stratospheric winds: Holding position against high-altitude winds needs propulsion and power, which add weight.
    3. Power through the night: Cameras and station-keeping need power after sunset, and batteries add more weight.
    4. Vulnerability: A large, slow, balloon-like craft can be detected and shot down in a conflict.

    Way Forward

    1. Longer trials: DRDO should test multi-day flights carrying working payloads such as radars and communication relays.
    2. Industry partnership: Bring private firms in early to manufacture the gas envelopes and subsystems at scale.
    3. Layered surveillance: Plan HAPS as a layer between drones and satellites in the armed forces’ surveillance network.
    4. Civilian use: Offer the platform for disaster monitoring and connectivity in remote areas.

    Conclusion

    India has shown it can put an indigenous craft into the stratosphere and hold it there, but a surveillance platform is judged by days aloft, not minutes. Longer flights carrying working payloads are the next milestone to watch.

    Back2Basics: Aerial Delivery Research and Development Establishment (ADRDE)

    1. Role: This DRDO laboratory works on aerial delivery, moving people and loads safely from the air.
    2. Parachutes: It designs parachute systems for aircraft, troops and cargo drops.
    3. Space work: It developed, with the Indian Space Research Organisation (ISRO), the parachutes that slow the Gaganyaan crew module for splashdown.
    4. Aerostats: It builds aerostats, tethered balloons that carry surveillance sensors.

    Matching Previous Year Question

    “[2026] Consider the following statements about Mission Sudarshan Chakra of India: 1. It aims to enhance India’s air defence, ballistic missile defence and aerial offensive capabilities. 2. Designed to enhance rapid, precise, and powerful defence responses, reinforcing India’s strategic autonomy. 3. One of the aims is to cover all public places of India by an expanded nationwide security shield by 2035. (a) 1, 2 and 3 (b) 1 and 2 only (c) 2 and 3 only (d) 1 only ANSWER: A”

  • First indigenous fleet support ship launched

    First indigenous fleet support ship launched

    Why in the News

    For the first time, the Indian Navy has an indigenously built fleet support ship, a tanker that refuels and resupplies warships at sea. The Union Defence Minister launched the first ship of the series, FSS-1 Surya, at Hindustan Shipyard Limited (HSL), Visakhapatnam, and urged Indian shipyards to compete globally.

    What is a fleet support ship, and why does the Navy need one?

    1. What it is: A fleet support ship is a floating supply base that carries fuel, water and stores for warships. It works like a petrol pump and supply truck that sail with the fleet.
    2. Why it is needed: Warships cannot stay far from port for long without refuelling. This ship keeps them supplied through long, high-intensity naval engagements and far from home ports.
    3. Storage: It holds up to 20,000 tonnes of high-speed diesel and 2,500 tonnes of aviation turbine fuel, plus fresh water and dry cargo containers for ammunition and spares.
    4. Replenishment at sea: It can transfer fuel, stores and personnel to several warships at once, so the fleet stays deployed on the high seas without returning to port.
    5. The takeaway: A navy’s reach ends where its fuel runs out, so these ships decide how far and how long India can operate at sea.

    What has been launched, and under what programme?

    1. Series of five: Surya is the first of five fleet support ships. The Minister also laid the keel of the last ship, FSS-5; laying the keel, the ship’s backbone, formally starts construction.
    2. Contract: The programme rests on a Rs 19,000-crore contract between the Ministry of Defence and HSL for five indigenous auxiliary vessels, support ships that do not fight.
    3. Indigenous content: The platform carries 82% indigenous content, meaning most of its value is designed and made in India.
    4. Launch stage: A launch floats the hull for the first time. Fitting-out and sea trials follow before the Navy inducts the ship.

    Why does the programme matter beyond the Navy?

    1. Blue-water reach: Blue-water means operating on the open ocean far from the coast. Indian-built tankers let the Navy sustain such operations across the Indian Ocean Region without depending on foreign shipyards for support vessels.
    2. Import substitution: The Navy’s current large tankers include foreign-built ships. Eg. INS Deepak and INS Shakti were built by Italy’s Fincantieri.
    3. Global competitiveness: The Minister urged Indian shipyards to look beyond self-reliance towards global competitiveness and international markets.
    4. Marine services: He also asked yards to build a presence in marine technology and offer advanced ship repair services.

    Challenges

    1. Delivery delays: Indian warship programmes often run years behind schedule. Eg. INS Vikrant took 13 years from keel-laying to commissioning.
    2. Imported share: The remaining 18% of content keeps part of the supply chain abroad, which exposes the series to foreign supply shocks.
    3. Vulnerable at sea: Large, slow tankers are high-value targets in a conflict and need escort protection.
    4. Crowded market: China, South Korea and Japan build most of the world’s ships, which makes export orders hard to win.

    Way Forward

    1. Milestone payments: The Ministry of Defence should tie HSL’s payments to delivery milestones for all five ships.
    2. Deeper indigenisation: Replace the remaining imported systems with Indian-made ones in the later ships of the series.
    3. Shipbuilding finance: Use the Maritime Development Fund announced in the Union Budget 2025-26 to expand shipyard capacity.
    4. Repair hub: Market Indian yards for the repair and maintenance of friendly navies’ ships in the Indian Ocean.

    Conclusion

    Surya marks India’s shift to building the ships that keep its fleet at sea, but its value depends on delivering the whole series on time. Its sea trials and induction, and the pace of work on the remaining hulls, are what to watch.

    Back2Basics: Hindustan Shipyard Limited (HSL)

    1. Origin: The Scindia Steam Navigation Company founded it at Visakhapatnam in 1941.
    2. Nationalisation: The Union government took it over in 1952 and renamed it Hindustan Shipyard.
    3. Ownership: It has been a defence public sector undertaking under the Ministry of Defence since 2010.
    4. Work: It builds and repairs naval and commercial vessels, including the refit of submarines.

    Matching Previous Year Question

    “[2026] Consider the following statements about Mission Sudarshan Chakra of India: 1. It aims to enhance India’s air defence, ballistic missile defence and aerial offensive capabilities. 2. Designed to enhance rapid, precise, and powerful defence responses, reinforcing India’s strategic autonomy. 3. One of the aims is to cover all public places of India by an expanded nationwide security shield by 2035. (a) 1, 2 and 3 (b) 1 and 2 only (c) 2 and 3 only (d) 1 only ANSWER: A”

  • Atmanirbharta in defence: It’s not as simple as it seems

    Why in the News

    The Defence Minister has set out a vision to “design in India, develop in India, manufacture in India” for military equipment. Yet full indigenisation is the costliest way to acquire a weapon, so real atmanirbharta lies in controlling the few technologies that decide a platform’s edge.

    What is atmanirbharta in defence, and why does India pursue it?

    1. What it is: Atmanirbharta (self-reliance) means designing, developing, testing and building weapons at home. It is like a household growing all its own food instead of buying any.
    2. Import dependence: India was the world’s fifth largest defence spender last year and the second largest arms importer, behind only war hit Ukraine.
    3. Strategic autonomy argument: A rising power must build its own arsenal to escape pressure from foreign governments and original equipment manufacturers (OEMs), the firms that design and sell weapons.
    4. The takeaway: A nationalistic public backs self-reliance and brands critics as arms industry agents, so its cost is rarely questioned.

    What has the self-reliance push delivered so far?

    1. Slogans: “Make in India” was coined in 2014, followed by “Vocal for Local” and Atmanirbhar Bharat (self-reliant India) in 2020.
    2. Production: Ministry of Defence figures show indigenous defence and aerospace production roughly quadrupled since 2014.
    3. Exports: Defence exports reached a record Rs 38,434 crore last year.
    4. Hidden import content: The Tejas fighter, Navy warships and many Army missiles are not fully Indian, since much of their cost buys foreign subsystems.

    Why is full self-reliance the costliest route?

    1. Cost hierarchy in defence acquisition: Acquisition methods rise in cost and time in a fixed order:
      • Lease, for only as long as needed, is cheapest and fastest;
      • Buy off the shelf costs more;
      • Licensed production, buying the technology and building a factory at home, costs more still;
      • Atmanirbharta, designing from scratch, costs the most.
    2. High cost of autarky: Developing every element raises cost unacceptably, so even leading defence economies avoid total autarky (complete self-sufficiency).
    3. Control the core, buy the rest: Top weapon makers keep key technologies in house and source other subsystems from established leaders.
    4. Ejection seats: Even top makers buy ejection seats from British firm Martin-Baker, which supplies over half the world’s combat aircraft. Eg. Lockheed Martin’s F-35 Lightning II.

    What should India control, and how?

    1. Flight control software: The Tejas is built inherently unstable, which makes it agile. Quadruplex fly-by-wire software steers it by electronic signals over four backup channels.
    2. Indigenous flight software: That software, built for the first Tejas, is being upgraded to control the Tejas Mark 2 and the Advanced Medium Combat Aircraft (AMCA), India’s planned fifth generation fighter.
    3. Project management: The key skill is deciding which systems a platform needs, where to source them, what to build and when to close a project.
    4. Supply chain leverage: Buying abroad gives foreign suppliers leverage. If Indian firms become key subcontractors in global supply chains, an embargo on India hurts OEMs too.

    Challenges

    1. Induction delays: Indigenous platforms slip for years before reaching the forces, leaving capability gaps. Eg. The Arjun tank and INS Vishal.
    2. Weak programme management: Projects lack a process to identify core technologies early and close failing lines of work.
    3. Commodity dependence: Home built weapons do not remove leverage over a middle power that imports critical commodities such as oil.

    Way Forward

    1. Core technology list: Name each platform’s essential technologies at the start of development and buy mature subsystems globally.
    2. Programme management cadre: Build project skills in the Defence Research and Development Organisation (DRDO) and the services, with authority to close failing projects.
    3. Supplier integration: Make Indian firms suppliers to global weapon makers, so an embargo also costs the supplier.

    Conclusion

    India’s self-reliance drive has succeeded on volume, but volume is not control of critical technology. Whether future programmes name and own their core technologies from the start will decide if atmanirbharta buys capability or only cost.

    Key numbers

    1. Indigenous production base: Rs 46,000 crore (2014).
    2. Defence exports base: Rs 600 crore (2014).
    3. Export target: Rs 50,000 crore by 2028-29 (Defence Minister).
    4. Martin-Baker share: 50 to 55 percent of world combat aircraft.
    5. GE F414 technology transfer: about 80 percent.

    Government initiatives for defence indigenisation

    1. Positive indigenisation lists: Ministry of Defence lists of items to be bought only from Indian sources after set timelines; they crossed 5,500 items by early 2025.
    2. GE F414 engine co-production: Hindustan Aeronautics Limited (HAL) will build this engine in India with most technology transferred, to power the Tejas Mark 2.

    Matching Previous Year Question

    “[2026] Consider the following statements about Mission Sudarshan Chakra of India: 1. It aims to enhance India’s air defence, ballistic missile defence and aerial offensive capabilities. 2. Designed to enhance rapid, precise, and powerful defence responses, reinforcing India’s strategic autonomy. 3. One of the aims is to cover all public places of India by an expanded nationwide security shield by 2035. (a) 1, 2 and 3 (b) 1 and 2 only (c) 2 and 3 only (d) 1 only Answer: A”

  • CSIR Transfers Technologies for Sustainable Industry and Safer Roads

    CSIR Transfers Technologies for Sustainable Industry and Safer Roads

    Why in the News?

    CSIR transferred indigenous technologies developed by CSIR-CLRI and CSIR-CRRI to industry, focusing on waste valorisation, circular economy, road safety and sustainable infrastructure.

    Key Technologies

    1. Protein-based Syntans from Chrome Shavings

    • Developed by CSIR-CLRI, Chennai.
    • Converts collagen-rich chrome shavings from leather waste into protein-based syntans.
    • Syntans can be reused in leather retanning.
    • Demonstrated at 100-200 kg pilot scale and validated at 1,500 kg commercial scale.
    • Can reduce Total Dissolved Solids (TDS) in post-tanning wastewater by up to 50%.

    2. Spent Pickling Acid Valorisation

    • Recovers iron and chloride from spent pickling acid.
    • Produces pigment-grade iron oxide and ammonium chloride.
    • Converts hazardous industrial waste into useful products.
    • Supports circular economy and waste utilisation.

    3. ClariVisor

    • Developed by CSIR-CRRI, New Delhi.
    • In-vehicle glare mitigation device for four-wheelers.
    • Designed to fit within the footprint of the vehicle’s original OEM sun visor.

    4. Two Pack Onsite Pothole Filling Mix

    • Cold-application road repair technology.
    • Two components are mixed on-site before application.
    • Does not require a hot-mix plant or heating.
    • Reduces energy consumption and emissions.
    • Enables faster pothole repair and reopening of roads.

    Important Full Forms

    • CSIR: Council of Scientific and Industrial Research
    • CLRI: Central Leather Research Institute
    • CRRI: Central Road Research Institute
    • DSIR: Department of Scientific and Industrial Research
    • TDS: Total Dissolved Solids
    • OEM: Original Equipment Manufacturer
    • SDGs: Sustainable Development Goals

    Prelims Quick Revision

    • CSIR-CLRI: Chennai, leather research.
    • CSIR-CRRI: New Delhi, road research.
    • Chrome shavings: Used to recover collagen-based material for syntans.
    • Spent pickling acid: Can yield iron oxide and ammonium chloride.
    • Two Pack Pothole Mix: Cold application, no heating required.
    • ClariVisor: Glare mitigation for four-wheelers.

  • GRSE launches indigenous vessel for deep-sea research

    Why in the News

    Garden Reach Shipbuilders and Engineers (GRSE) has launched Sagar Manthan, an indigenously built ocean research vessel for the National Centre for Polar and Ocean Research (NCPOR). The Rs 840 crore vessel is being built for the Ministry of Earth Sciences and is expected to be ready for use by early 2028. India’s existing ocean research ships were built abroad, and its polar voyages have run on chartered vessels. The capability being added is therefore the domestic construction of the platform itself, not a new branch of ocean science.

    What has actually been launched?

    1. The vessel and the builder: Sagar Manthan is an ocean research vessel built at GRSE, the Kolkata based defence shipyard under the Ministry of Defence.
    2. The cost and the date: The vessel costs Rs 840 crore and is expected to be ready for use by early 2028.
    3. What a launch is: Launch is the stage at which the completed hull enters the water, and outfitting, sea trials and delivery to the user follow it.

    Why does an indigenously built research vessel matter?

    1. The existing fleet came from abroad: The oceanographic research vessel Sagar Kanya was built in Germany and delivered in 1983, and Sagar Nidhi was built in Italy and delivered in 2008.
    2. Polar voyages run on hired ships: Indian Antarctic expeditions have been carried on chartered ice class vessels rather than on an Indian owned polar research ship.
    3. The capability stays onshore: Building a scientific platform domestically keeps design, repair and refit capacity inside the country, which shortens the turnaround between expeditions.

    Where does the vessel fit in India’s ocean programme?

    1. The Deep Ocean Mission: Approved in 2021, the mission is developing the crewed submersible Matsya-6000 under the Samudrayaan project to carry three people to a depth of 6,000 metres.
    2. India’s seabed exploration rights: India holds an exploration contract with the International Seabed Authority for polymetallic nodules in the Central Indian Ocean Basin, and a second contract for polymetallic sulphides on the Indian Ocean Ridge, both of which require sustained survey and sampling at sea.

    Challenges to India’s deep-sea research capability

    1. Programme timelines slip: Deep sea hardware moves from design to sea trials over years, and the science schedule is rebuilt each time a date moves. Eg. The crewed dive under the Samudrayaan project has slipped repeatedly from its original 2022 target.
      The Fix: Publish dated milestones for each mission element and release funding tranches against those milestones rather than against annual budget cycles.
    2. Exploration rights do not convert into extraction: A seabed contract permits survey and testing, and commercial recovery waits on an international mining code that has not been adopted. Eg. Negotiations on the seabed mining code at the International Seabed Authority have run for over a decade without a final text.
      The Fix: Use the contract period to build a domestic metallurgical route for processing nodule metals, so capability exists before the code opens extraction.
    3. The polar operating window is narrow: A hull without ice strengthening cannot work in polar waters for most of the year, so polar science is compressed into a short season. Eg. Resupply of India’s Antarctic research stations is confined to the austral summer.
      The Fix: Commission a dedicated ice class polar research vessel alongside this platform, rather than treating one research hull as cover for both tropical and polar work.

    Conclusion

    The hull is in the water and the science is still two years away, since launch is the start of outfitting rather than the end of construction. What the milestone settles is that India can build this class of ship for itself. What it does not settle is the shortage of sea time against a mandate that runs from the Arctic to the Antarctic and across the Indian Ocean seabed. The marker to watch is whether a dedicated ice class polar vessel is sanctioned to sit alongside it, or whether polar expeditions continue on chartered ships after this one is delivered.

    Back2Basics

    1. What NCPOR is: Set up in 1998 as the National Centre for Antarctic and Ocean Research, and renamed the National Centre for Polar and Ocean Research in 2018.
    2. Status and location: An autonomous institute of the Ministry of Earth Sciences, based at Vasco da Gama in Goa.
    3. Mandate: The nodal agency for India’s polar and Southern Ocean research, which plans and executes the annual Antarctic and Arctic expeditions.
    4. Stations it runs: Maitri and Bharati in Antarctica, and Himadri at Ny-Alesund in Svalbard in the Arctic.

    Matching Previous Year Question

    “[2026] Which of the following statements with regard to India’s Deep Ocean Mission is/are correct? 1. It was launched by the Ministry of Ports, Shipping and Waterways, Government of India. 2. Matsya-6000 has been designed to carry 3 people for deep sea exploration. 3. Samudrayaan is a project under this mission. (a) 1 only (b) 2 and 3 only (c) 1 and 2 only (d) 1, 2 and 3 ANSWER: (b)”

  • China, US are in race to connect science with industry. India must catch up [Express]

    China, US are in race to connect science with industry. India must catch up [Express]

    Mentor Comment

    Beijing’s second World Humanoid Games has showcased a Chinese project to become the world’s leading science power, rooted in the Chinese President’s call to mobilise “new quality productive forces” released by the current revolutions in science and technology. The US administration has released Science: A New Golden Age, billed as the first major reset in US science policy since World War II, aimed at reintegrating discovery with production. Both powers are building an ecosystem that connects science with industry, from opposite starting points. India has launched missions on artificial intelligence (AI), semiconductor production and quantum technologies, but its private capital has retreated from science and its state-led scientific institutions remain unreformed.

    How are China and the United States racing toward the same goal from opposite directions?

    1. China’s break with the old growth model: The Chinese President holds that the next phase of growth cannot rely on cheap labour, large-scale manufacturing, infrastructure and capital accumulation, and must come from innovation.
    2. AI diffused across the physical economy: Beijing’s objective is to diffuse AI across robotics, machine tools, automobiles, biotechnology, materials, energy, agriculture and scientific research.
      • It bets that fusing digital intelligence with the world’s largest industrial ecosystem will make China the leading technological power.
    3. From adaptation to original discovery: For decades China absorbed foreign technology, improved it through manufacturing and dominated production. It now wants to move upstream to original discovery.
    4. China’s spending signal: China spent 2.8 per cent of GDP on research and development (R&D) in 2025, and its basic-research expenditure rose by 11 per cent.
    5. China’s four-step logic: AI accelerates discovery; discovery produces technology; technology transforms industry; industrial strength generates national power and a geopolitical edge.
    6. The US reset names its own weakness: Science: A New Golden Age, released in July, recognises American strengths in universities, laboratories, technology companies and capital markets. It acknowledges the erosion of the capacity to turn discoveries into production.
    7. How globalisation split US innovation from manufacturing: Companies designed at home, produced abroad and depended on long supply chains. That model generated wealth and also the vulnerabilities exposed by the pandemic, China’s rise and geopolitical rivalry.
    8. Mirror-image fears: China begins with the largest manufacturing base and moves upstream into science. The US begins with the strongest scientific system and moves downstream into manufacturing. China fears dependence on American technology; the US fears dependence on Chinese production.

    What does “connecting science with industry” actually mean in this contest?

    1. AI as an accelerator of knowledge, not a product: Washington and Beijing see AI not merely as a general-purpose technology but as an accelerator central to the production of new knowledge that in turn transforms industry.
    2. Discovery made continuous with manufacturing: By making discovery continuous with design and manufacturing, AI-driven science transforms production itself and converts scientific speed into economic power and geopolitical capability.
    3. The ecosystem, not the model, is the prize: The contest is not about who unveils the cleverest AI model or the most sophisticated humanoid. It is about building the most effective ecosystem connecting universities, laboratories, entrepreneurs, finance, energy, factories, supply chains and markets.

    Where does India stand as the race intensifies?

    1. Missions exist on paper: Delhi recognises the trend and has launched missions on AI, semiconductor production and quantum technologies, and has a draft robotics policy.
    2. The spending gap: The Economic Survey 2025-26 puts India’s R&D expenditure at 0.64 per cent of GDP, against about 2.8 per cent for China and 3.5 per cent for the US.
    3. The absolute gap is wider: The World Intellectual Property Organisation estimates India’s total R&D spend at $75 billion in purchasing-power-adjusted dollars, against $786 billion for China and $782 billion for the United States. In nominal dollar terms India looks even smaller.

    Why does the first weakness, the retreat of private capital from science, matter most?

    1. Ambition lives in government declarations: Ambition and imagination are concentrated in government declarations at a time when the private sector contributes more than ever to producing knowledge in the US and China.
    2. Indian capital has no science project: Indian capital rarely articulates a project for mastering the new forces of production or a new project for science and basic research.
    3. It was not always so: Jamsetji Tata helped create the Indian Institute of Science in 1909. The Kirloskars and other western Indian business families sent their children to the Massachusetts Institute of Technology from the 1920s, recognising that independent India’s future lay in mastering modern science.
    4. Private philanthropy built the strategic programmes: The Sir Dorabji Tata Trust supported Homi Bhabha in establishing the Tata Institute of Fundamental Research, which formed the nucleus of India’s atomic energy and space programmes. Indian capital has retreated from that tradition.

    Why does the second weakness, unreformed scientific institutions, compound the first?

    1. No overhaul in India’s reform era: China’s reform era, launched in the late 1970s under Deng Xiaoping, put the revitalisation of science and technology at the heart of the Four Modernisations. India’s reform era, beginning in the 1990s, produced no comparable overhaul.
    2. Same American training, different follow-through: India and China both benefited from access to American universities that trained their vast talent pools. China combined that opportunity with massive domestic investment in science and higher education and incentives for researchers to return.
    3. India does not draw talent back: India’s science sector fails to attract its trained talent home, and the shortfall is severe rather than marginal.

    Can “technological sovereignty” be built without global science?

    1. Bureaucratisation, then cultural nationalism: The Congress era saw the steady bureaucratisation of Indian science, and the BJP era is adding cultural nationalism to it.
    2. Mythology is not evidence: Civilisational pride cannot make mythology a substitute for evidence, experiment and scientific temper. India’s most confident claim should be that the greatest Indian contributions lie in the future, not that all modern science was discovered in its past.
    3. The cost of talking tall, once before: Delhi’s radical posturing on technological “self-reliance” in the 1970s and 1980s isolated India from global technological advances. Today there is grandiose talk of “technological sovereignty”.
    4. Two tracks at once: India must deepen cooperation with global science, capital, technology and talent, and at the same time build domestic research, industrial and institutional capacity. Neither track substitutes for the other.

    Challenges to India’s science-industry linkage

    1. Research sits outside the universities that supply the workforce: Most public research is done in mission agencies and Council of Scientific and Industrial Research (CSIR) laboratories, so graduates and firms rarely meet discovery where it happens. Eg. The Defence Research and Development Organisation, the Indian Space Research Organisation, the Department of Atomic Energy and CSIR absorb the bulk of central research spending, and State universities receive a marginal share.
      The Fix: Route Anusandhan National Research Foundation grants preferentially to State universities with mandatory industry co-investment.
    2. Industry does not fund its own research: The private sector contributes 36 per cent of India’s gross R&D expenditure, against 77 per cent in China and 79 per cent in the US and Japan. Eg. The weighted tax deduction on in-house R&D under Section 35(2AB) of the Income Tax Act, 1961 was cut from 200 per cent to 100 per cent from 2020-21, removing the one fiscal incentive firms used.
      The Fix: Restore a weighted deduction tied to patents filed and products commercialised rather than to spending alone.
    3. Deep technology has no patient capital: Venture funds back consumer applications that return within five years, not fabs or materials that need fifteen. Eg. Micron’s assembly and test plant at Sanand, approved in 2023, needed roughly 70 per cent of its project cost as central and Gujarat subsidy before private capital moved.
      The Fix: Deploy the Research Development and Innovation scheme corpus as long tenure, low interest loans and fund-of-funds equity for private deep technology projects.
    4. Public procurement does not buy the first unit: Government buyers demand a track record, so an Indian prototype finds no first customer and licenses abroad. Eg. The United States’ Small Business Innovation Research programme reserves a fixed share of federal agency R&D budgets for small firms’ first contracts, and India has no equivalent set-aside.
      The Fix: Add a first-buyer set-aside in the General Financial Rules for Indian deep technology products validated by a designated national laboratory.

    Conclusion

    The contest India has to enter is an ecosystem contest, and an ecosystem cannot be declared into existence by a mission document. Two things remain unreconciled: a state-led science system that has never been restructured, and a private sector that has stopped funding discovery. Whether Indian capital returns to the tradition that built the Indian Institute of Science and the Tata Institute of Fundamental Research is the marker to watch, and the disbursal of the new research finance corpus to private laboratories is where it will first show.

    About India’s Research and Innovation Ecosystem

    1. What the ecosystem measures: Gross expenditure on R&D (GERD) counts spending by government, industry and higher education on basic research, applied research and experimental development.
    2. Who does the research: Central agencies dominate, with a small set of premier institutes such as the Indian Institutes of Technology, the Indian Institute of Science and the National Institute of Immunology providing the academic base.
    3. Global standing: India ranked 39th of 133 economies in the World Intellectual Property Organisation’s Global Innovation Index 2024, first among lower middle income economies.

    Laws and Rules Governing India’s Research and Innovation Ecosystem

    1. Anusandhan National Research Foundation Act, 2023: Creates an apex body to seed, grow and promote research in universities and laboratories, with a planned Rs 50,000 crore over 2023-28 of which Rs 36,000 crore is to come from non-government sources.
    2. The Act repealed the Science and Engineering Research Board Act, 2008 and subsumed that board into the new foundation.
    3. Patents Act, 1970: Governs the grant and enforcement of patents; the 2005 amendment introduced product patents in pharmaceuticals, chemicals and food to comply with the World Trade Organisation’s TRIPS agreement.

    Government Initiatives for India’s Research and Innovation Ecosystem

    1. Research Development and Innovation scheme: Approved by the Union Cabinet in July 2025 with a Rs 1 lakh crore corpus to finance private sector research in sunrise sectors through long tenure, low or nil interest loans and equity.
    2. IndiaAI Mission: Launched in 2024 by the Ministry of Electronics and Information Technology, anchored in shared compute of 38,000-plus GPUs, the AI Kosh open dataset platform, and 570 FutureSkills and AI Labs in Tier 2 and Tier 3 cities.
    3. National Quantum Mission: Launched in April 2023 with an outlay of Rs 6,003 crore for 2023-31, building four Thematic Quantum Technology Hubs in computing, communication, sensing and metrology, and materials and devices.
    4. India Semiconductor Mission: Approved in December 2021 with a Rs 76,000 crore outlay to subsidise fabrication, display and assembly plants and to fund chip design startups.
    5. VAIBHAV Fellowship: Launched in 2023 by the Department of Science and Technology to bring diaspora scientists to Indian institutions for collaborative research stints.

    Key Facts about India’s Research and Innovation Ecosystem

    1. National Science Day, 28 February: Marks the announcement of the Raman effect in 1928.
    2. National Technology Day, 11 May: Marks the Pokhran-II nuclear tests of 1998 and the first flight of the indigenous Hansa aircraft the same day.

    Back2Basics

    1. What they were: China’s programme to modernise agriculture, industry, national defence, and science and technology.
    2. When adopted: First articulated by Premier Zhou Enlai in 1963 and again in 1975, and made the centrepiece of the reform era at the Third Plenum of December 1978.
    3. Why science was listed: Science and technology was named as the modernisation that enabled the other three, which is why the reform era began by rehabilitating scientists and reopening universities to competitive entrance examinations.

    [2019, GS3, 10 marks] How was India benefited from the contributions of Sir M.Visvesvaraya and Dr. M. S. Swaminathan in the fields of water engineering and agricultural science respectively?”

  • Navy Chief: INS Nipun will enhance our critical underwater capabilities

    Navy Chief: INS Nipun will enhance our critical underwater capabilities

    Why in the News

    The Indian Navy has commissioned INS Nipun at Mumbai, a dedicated Diving Support and Submarine Rescue Vessel built for work beneath the surface.

    What capability does INS Nipun add?

    1. It is a specialist platform for underwater work: The vessel is built for deep sea diving, underwater intervention and submarine rescue.
    2. It can carry the rescue submersible: Its ability to embark and operate the Indian Navy’s Deep Submergence Rescue Vessel is what converts it into a rescue platform.
    3. The rescue role extends beyond Indian submarines: It can respond to a distressed submarine of the Indian Navy or of a partner navy, which is the basis of the claim that India can emerge as the region’s preferred submarine rescue partner.
    4. Its diving capability supports relief work: The specialised diving capability can assist partner nations in underwater salvage and in humanitarian assistance and disaster relief (HADR) missions.
    5. Few navies hold the combination: The vessel brings together a range of capabilities possessed by only a handful of navies.

    Why does the Navy frame this as a strategic requirement?

    1. The maritime environment is described as contested: The Chief of the Naval Staff assessed that threat perceptions are constantly evolving and morphing into newer forms.
    2. Preparedness is the stated response: The exact nature of future threats cannot be predicted, so robust capability has to be built against anticipated threats in advance.
    3. The Western Naval Command gains a full column capability: The addition allows the command to operate above, on and beneath the waves.
    4. Integration is the immediate task: The command is to fold the vessel into operational plans, exercise her capabilities rigorously and develop proficiency around her systems.

    What does the vessel mean for indigenous shipbuilding?

    1. The builder is an Indian yard: Hindustan Shipyard Limited at Visakhapatnam designed and built the vessel indigenously.
    2. The class is new to the fleet: INS Nipun is the second ship of the Nistar class of diving support vessels.
    3. The Ministry of Defence frames it as self-reliance: The induction is presented as a further step towards self-reliance in defence shipbuilding.
    4. The platform type is rarely built domestically: A diving and rescue vessel is a niche design, so building it in India establishes a capability that cannot be sourced quickly from imports.

    Challenges to India’s submarine rescue and underwater capability

    1. Rescue is a race against the air supply: A disabled submarine’s crew survives on limited oxygen, so a rescue system has to be transported and mated within hours. Eg. All 118 crew aboard the Russian submarine Kursk died in the Barents Sea in 2000 before foreign rescue assistance was accepted.
      The Fix: Keep rescue systems prepositioned on both seaboards with standing mating certification against partner navy hatch designs.
    2. The fleet operates on two seaboards with few rescue platforms: Indian submarines patrol the Arabian Sea and the Bay of Bengal, and dedicated rescue assets are limited in number. Eg. India inducted its first Deep Submergence Rescue Vehicle system only in 2018, with the second following the next year.
      The Fix: Retain air transportable rescue systems that can be flown to the nearest usable port instead of sailed from a home base.
    3. Rescue only works where the hatch fits: A rescue vehicle can dock only with a submarine whose escape hatch matches its mating skirt, so cross navy rescue depends on standardisation. Eg. The International Submarine Escape and Rescue Liaison Office exists to run exercises that test exactly this compatibility.
      The Fix: Certify Indian rescue systems against partner navy hatch standards and publish the compatibility list to regional navies.
    4. Naval shipbuilding timelines stretch: Indian yards have delivered warships and submarines behind their original schedules, which delays the capability rather than the contract. Eg. Deliveries under the Scorpene class submarine programme ran years behind the timeline set at signing.
      The Fix: Link yard payments to certified milestone completion rather than to calendar tranches.
    5. Saturation diving is a scarce skill: Deep diving support needs trained saturation divers and chamber operators, and that trained pool is small worldwide. Eg. Offshore energy operators and navies draw saturation divers from the same limited global workforce.
      The Fix: Run a joint naval and commercial diving training school whose certification is recognised for offshore industry work, so the pool grows beyond service requirements.

    Back2Basics: Hindustan Shipyard Limited

    1. Status: A shipyard at Visakhapatnam that was transferred to the Ministry of Defence in 2010 from the Ministry of Shipping.
    2. Origin: It was founded in 1941 as Scindia Shipyard and built India’s first indigenous merchant ship, Jala Usha, in 1948.
    3. Work: It builds and repairs merchant and naval vessels and carries out submarine refits for the Indian Navy.
    4. Current orders: It is building the Nistar class diving support vessels and the fleet support ships ordered for the Navy.

    [2026] Which of the following items of defence hardware is/are manufactured in India?

    1. Su-30 MKI Fighter Jets

    2. T-90 MK-III Tanks

    3. Akula Class Submarine

    (a) 1 and 2

    (b) 1 and 3

    (c) 1 only

    (d) 2 only

  • Nuclear power operator plans new design unit to support pvt players

    Nuclear power operator plans new design unit to support pvt players

    Why in the News

    The Nuclear Power Corporation of India Limited (NPCIL) is setting up a new design vertical to support private companies deploying Pressurised Heavy Water Reactor (PHWR) technology. This follows recent legal reform enabling private participation in civil nuclear power. The move marks a shift from NPCIL’s traditional role as sole builder and operator of India’s nuclear fleet toward a design-support role for private entrants, addressing India’s stated need to scale nuclear capacity to meet rising electricity demand while keeping deployment within a technology NPCIL already operates at scale.

    Why does India favour PHWR technology for private entry?

    1. Established domestic supply chain: PHWR technology has been indigenised in India since the 1980s, giving it a mature domestic manufacturing and fuel-cycle base that a newly entering private player can draw on.
    2. Natural uranium fuel cycle: PHWRs use natural, unenriched uranium, avoiding dependence on enrichment technology that remains tightly controlled internationally.

    What does NPCIL’s new design unit change?

    1. From sole operator to technology enabler: NPCIL will now provide design support to private players rather than being the only entity that builds and runs reactors, opening a role private companies previously could not access.
    2. Institutional capacity test: Whether NPCIL’s new vertical can support multiple private projects simultaneously, without diverting engineering capacity from its own ongoing reactor construction, remains to be demonstrated.

    Pressurised Heavy Water Reactor (PHWR)

    • PHWR = Pressurised Heavy Water Reactor uses heavy water (deuterium oxide, D₂O) as moderator and Coolant
    • It uses natural, unenriched uranium as fuel.

    Key Features of PHWR

    Heavy Water

    • Heavy water contains deuterium, an isotope of hydrogen.
    • It acts as both the moderator and coolant in PHWRs.

    Natural Uranium

    • PHWRs can operate using natural uranium, avoiding the need for uranium enrichment for the reactor fuel.

    Online Refuelling

    • PHWRs permit online refuelling.
    • Fuel bundles can be replaced while the reactor continues operating.
    • Therefore, the reactor does not need to be shut down for routine fuel replacement.

    “[2017, GS3, 15 marks] Give an account of the growth and development of nuclear science and technology in India. What is the advantage of fast breeder reactor programme in India?”

    [2023] Consider the following statements:
    Statement-IIndia, despite having Uranium deposits, depends on coal for most of its electricity production.
    Statement-II:Uranium, enriched to the extent of at least 60%, is required for the production of electricity.
    Which one of the following is correct in respect of the above statements

    [A] Both Statement-I and Statement – II are correct and Statement- II is the correct explanation for Statement- I

    [B] Both Statement I and Statement II are correct and Statement-II is not the correct explanation for Statement-I.

    [C] Statement- I is Correct but Statement-II is incorrect.

    [D] Statement-I incorrect but Statement-II is correct.

  • Draft rules under the SHANTI Act could favour Russia’s Rosatom in India’s nuclear opening

    Why in the News

    Draft rules issued by the Department of Atomic Energy under the Sustainable Harnessing and Advancement of Nuclear Energy for Transforming India (SHANTI) Act require any foreign nuclear technology brought into India to be design certified by the regulator in its country of origin and already operational there or in another foreign country. Only two Small Modular Reactors are operational anywhere in the world, so a clause written as a safety filter narrows India’s field of eligible suppliers to the one country that already has an operating unit.

    Mentor’s Comment

    A proven technology test is the most defensible condition a regulator can write. It is also the condition that most reliably locks out every new entrant, because nothing can be operational before someone allows it to operate somewhere first.

    What is the SHANTI Act?

    1. Full name: The Sustainable Harnessing and Advancement of Nuclear Energy for Transforming India Act, referred to as the SHANTI Act.
    2. Function: It is the statute under which India’s expansion of nuclear power generation is being governed, including the terms on which foreign nuclear technology may be sourced for an Indian plant or reactor.
    3. Rule making authority: The Department of Atomic Energy (DAE) frames the subordinate rules under the Act, and has now issued them in draft.
    4. Operative clause in the draft rules: Foreign nuclear technology sourced for a nuclear power plant or reactor in India must mandatorily carry design certification or approval from the regulatory body in its country of origin, and must already be operational there or in another foreign country.

    What is a Small Modular Reactor?

    1. Definition: A Small Modular Reactor (SMR) is an advanced nuclear reactor with about one third the generating capacity of a conventional large power reactor, built from factory made modules rather than site fabricated components.
    2. Intended use: SMRs are aimed at supplying clean electricity to remote regions with limited grid infrastructure and to individual industrial enterprises.
    3. India’s interest: India is examining SMRs for localised applications such as energy hungry data centres, and for scaling up baseload capacity quickly.

    What do the draft rules actually require of a foreign supplier?

    1. Home regulator certification: The design must be certified or approved by the regulatory body of the technology’s country of origin.
    2. Prior operating record: The technology must already be operational in that country or in another foreign country.
    3. Cumulative condition: Both tests must be met together, so a design certified but not yet built fails the rule, and a demonstration unit without home regulator certification also fails it.
    4. Practical filter: The clause screens out first of a kind designs, which is the entire category most SMR developers currently sit in.

    What does the global SMR field look like?

    1. Russia, Akademik Lomonosov: A floating power unit with two modules of 35 MWe that began commercial operation in May 2020. It is a non self propelled power barge docked at Pevek harbour, supplying heat to the Arctic port town and electricity to the regional grid, and is the world’s northernmost nuclear power plant.
    2. China, HTR-PM: A demonstration project grid connected in December 2021 that started commercial operations in December 2023, the second of the two SMRs operational globally.
    3. United States, Holtec International: The New Jersey based developer’s SMR is still in the design certification phase and is yet to be cleared by its domestic regulator.
    4. United Kingdom, Rolls-Royce SMR: Also in the design certification phase, with no operating unit anywhere.
    5. United States, GE-Hitachi BWRX-300: A boiling water reactor derived SMR, likewise awaiting domestic regulatory clearance.
    6. What the set demonstrates: Only Russia and China clear the operational test today, and Russia is the only country in the world with expertise in floating nuclear power solutions.

    What is Russia already positioned to supply in India?

    1. Existing build: Russia is already constructing conventional nuclear projects in India and holds a lead in the nascent SMR field.
    2. Kudankulam: The Kudankulam Nuclear Power Project (KKNPP) in Tamil Nadu is India’s largest nuclear power station and the flagship project of Russian and Indian energy cooperation. Units 1 and 2 use Russia’s earlier VVER-1000 light water reactors, where water cools the reactor, and are connected to the national grid supplying south India.
    3. Serial construction pitch: A key negotiating point from the Russian side is serial construction of high capacity units of Russian design in India based on the new generation VVER-1200 reactor models, with technical specifications being proposed by Russia.
    4. SMR pitch: Rosatom State Corporation has made a strong pitch for deploying its SMRs for targeted applications in India, and construction of SMRs of Russian design in India is under discussion.
    5. Floating solutions: In April 2024, Rosatom presented its Indian partners with information on its floating nuclear power solutions.
    6. Bilateral track: Progress on Kudankulam and the SMR proposal was reviewed at a working meeting in Mumbai on 10 November between the Chairman of the Department of Atomic Energy and the Director General of Rosatom.

    Why does cost also point the same way?

    1. Indigenous benchmark: India’s indigenous pressurised heavy water reactors (PHWRs) cost about Rs 18 crore per MW-electric.
    2. Russian comparison: Russian reactors are estimated at about Rs 34 crore per MW-electric, which industry insiders describe as only marginally more expensive.
    3. Western comparison: Light water reactors offered by French and United States companies are significantly more expensive than India’s indigenous PHWRs.
    4. Where the cost sits: Fuel accounts for a relatively small share of the overall cost of nuclear generation, so the capital number dominates.
    5. Financing and time: High upfront capital cost remains the key challenge for new projects, and financing costs and the length of the construction period are critical determinants of the final cost of nuclear power.

    What are the other major changes in India’s nuclear framework?

    1. Change to an existing monopoly: The reform track opens nuclear power generation beyond the exclusive preserve of state owned entities, which the Atomic Energy Act, 1962 had reserved for the government.
    2. Change to an existing liability regime: The Civil Liability for Nuclear Damage Act, 2010, whose Section 17(b) gives the operator a right of recourse against the supplier, is part of the same reform track because that provision is the standing deterrent for foreign vendors.
    3. New institutional target: A Nuclear Energy Mission for Viksit Bharat carries an outlay of Rs 20,000 crore for research and development on Small Modular Reactors, with at least five indigenously designed SMRs targeted to be operational by 2033.
    4. New capacity goal: A national target of 100 GW of nuclear capacity by 2047 anchors the entire framework, against present installed capacity of under 9 GW.
    5. New subordinate rules: The draft rules now released are the first set of subordinate legislation under the SHANTI Act governing sourcing of foreign nuclear technology.

    Does a proven technology test buy safety at the cost of competition?

    1. The case for the clause: A design already certified and operating abroad carries demonstrated safety performance, which is the strongest assurance a regulator can demand before a first Indian deployment.
    2. The cost of the clause: Almost every SMR developer is in the design certification phase, so a rule keyed to operating status excludes the field rather than ranking it.
    3. Competition effect: With Holtec, Rolls-Royce SMR and the GE-Hitachi BWRX-300 all outside the gate, price discovery for Indian projects narrows to one supplier’s quotation.
    4. Reciprocity problem: India’s own first of a kind designs have no operating record either, so a mirror clause applied abroad would keep Indian reactors out of foreign markets.
    5. Strategic dependence: Serial construction of VVER-1200 units plus SMR supply from the same country deepens a single supplier relationship in a sector with sixty year asset lives.

    Challenges to the design certification and prior operation clause

    1. The eligible field collapses to two countries: Only Russia and China have an operating SMR, e.g. Akademik Lomonosov since May 2020 and HTR-PM since December 2023, so every other developer is excluded until its home regulator acts.
    2. First of a kind Indian designs get no reciprocal entry: An indigenous SMR has no operating unit anywhere, e.g. the Bharat Small Modular Reactor of about 200 MWe exists only on paper, so a comparable foreign rule would bar it abroad.
    3. Supplier liability still deters western vendors independently of this clause: Section 17(b) of the Civil Liability for Nuclear Damage Act, 2010 has kept projects frozen, e.g. the Jaitapur project with French supply has been under negotiation since 2010 without a single unit built.
    4. Construction period risk dominates project cost: Long build times inflate financing cost, e.g. Kudankulam Unit 1 was sanctioned in 1988 and reached criticality only in 2013.
    5. Fuel supply remains external for safeguarded reactors: Imported uranium underpins the light water fleet, e.g. India sources uranium from Kazakhstan, Uzbekistan, Russia and Canada under Nuclear Suppliers Group waiver arrangements.
    6. Local acceptance and land acquisition delay siting: Public opposition has stalled commissioning, e.g. protests at Kudankulam through 2011 and 2012 delayed the first unit by over a year.
    7. SMR economics depend on serial factory production: A handful of units cannot amortise a module factory, e.g. Pevek’s barge served a single Arctic town, which is not a template for grid scale Indian demand.

    Conclusion

    The rules under the SHANTI Act are at the stage of a draft released by the Department of Atomic Energy for public comment, and the operative clause requires foreign nuclear technology to be design certified in its country of origin and already operational there or abroad. The next milestone is the close of the comment window on 4 September 2026, after which the rules are to be finalised and notified. As drafted, the clause leaves Rosatom as effectively the only qualifying SMR supplier, with Holtec International, Rolls-Royce SMR and the GE-Hitachi BWRX-300 all still in design certification.

  • ₹3,070 Crore Defence Boost: 405 Items to Go Indigenous

    Why in the News

    The Department of Defence Production notified the sixth Positive Indigenisation List, covering 405 strategically important defence items with an estimated business potential of Rs 3,070 crore. The list moves the import ban from whole platforms down to the spares, sub-assemblies and raw materials layer that keeps imported fleets flying and floating.

    What is the Positive Indigenisation List?

    1. Definition: A Positive Indigenisation List (PIL) is a notified list of defence items that can be procured only from Indian industry after a stated deadline passes.
    2. Legal effect: The listed item stays importable until its deadline. After that date, procurement is exclusively domestic.
    3. Issuing authority: The Department of Defence Production (DDP) under the Ministry of Defence notifies the list.
    4. Two families of lists: One family covers capital acquisition platforms for the armed forces. The second family covers line replaceable units, sub-systems, sub-assemblies, spares, components and raw materials of Defence Public Sector Undertakings (DPSUs), which is the family the sixth list belongs to.
    5. Policy anchor: The Ministry placed the sixth list within the Aatmanirbhar Bharat initiative for self reliance in defence manufacturing.

    What is a Line Replaceable Unit?

    1. Definition: A Line Replaceable Unit (LRU) is a self contained module on a platform that a technician can swap out at the operating unit itself, without sending the platform to a depot.
    2. Why it matters: LRU import dependence decides fleet availability, since an aircraft grounded for one imported module is as unusable as an aircraft never bought.

    What is the SRIJAN Defence Portal?

    1. Definition: The SRIJAN Defence Portal is the Ministry of Defence’s online indigenisation platform on which DPSUs and the Services publish items they currently import and invite Indian vendors to develop them.
    2. Use in this case: The detailed sixth list has been uploaded on the portal, so vendors can see item level specifications rather than only the headline count.

    Components of the sixth list, by lifecycle stage

    The release’s own categorisation phrase is “line replaceable units, sub-systems, sub-assemblies, spares, components and raw materials”. The table below keeps that official grouping and maps each element to the stage of the platform lifecycle it sits at.

    Official category (lifecycle stage)Platforms and systems coveredOfficial figuresPrimary stakeholder
    Raw materials (input stage)Feedstock for the listed platforms and systemsNo separate figure given in the releaseIndian industry, particularly MSMEs
    Components and spares (production stage)Armoured platforms T-72, T-90 and BMP-II, and warshipsNo separate figure given in the releaseDPSUs with MSME participation
    Sub-assemblies and sub-systems (assembly stage)Advanced Light Helicopter, Light Utility Helicopter, Chetak and Cheetah helicopters, Su-30MKI, Jaguar, MiG-29, the Light Combat Aircraft and the AL-31FP engineNo separate figure given in the releaseDPSUs, in house development route
    Line replaceable units (sustainment stage)Missile systems Konkurs-M, Invar and MRSAM, defence electronics covering radars, sonars, fire control systems and satellite communication systems, and High Explosive Anti-Tank ammunitionPart of the 405 items worth Rs 3,070 crore16 items for the Indian Coast Guard, 389 items for DPSUs
    Exclusive domestic procurement (offtake stage)All 405 listed itemsDeadlines running up to December 2031Indian industry as the sole permitted source

    Why does the list target spares and sub-systems rather than whole platforms?

    1. Sustainment is where imports survive: A platform built in India under licence still draws imported modules through its service life, so a platform level ban leaves the recurring import bill untouched.
    2. Legacy Russian and Western fleets stay in service: The Su-30MKI, MiG-29, Jaguar, T-72, T-90, BMP-II, Konkurs-M and Invar are all of foreign origin and remain in front line use, so their spares are the standing demand.
    3. MSMEs can enter at this scale: The Ministry stated that DPSUs and the Indian Coast Guard will indigenise through several routes including in house development, with participation from industry and particularly MSMEs.
    4. Deadlines create assured demand: Once an item is developed locally, it will be procured exclusively from Indian industry, which converts a technical goal into a guaranteed order.
    5. Stated economic objective: The Ministry expects the list to expand opportunities for Indian industry, strengthen the domestic defence manufacturing ecosystem, promote investment and innovation, and reduce import dependence.

    What does the record of the previous five lists show?

    1. Cumulative coverage: The last five positive indigenisation lists together comprised 5,012 critical items of DPSUs.
    2. Delivery so far: 3,200 of those items have already been indigenised.
    3. Value realised: The indigenised items carry an import substitution value of over Rs 3,900 crore.
    4. Completion gap: 1,812 items from the earlier five lists remain to be indigenised even before the sixth list’s 405 are added.
    5. Scale of the new tranche: The sixth list’s Rs 3,070 crore business potential is close to the entire import substitution value the previous five lists have delivered so far.

    Challenges to the Positive Indigenisation List

    1. Design authority remains abroad: Reverse engineering a spare does not transfer the original equipment manufacturer’s design data, so upgrades and configuration changes still need foreign clearance, e.g. Su-30MKI serviceability fell sharply when Russian spares supply was disrupted after February 2022.
    2. Certification is the real bottleneck: A developed item still needs airworthiness or seaworthiness clearance before induction, and that queue is longer than the development itself, e.g. clearances from the Centre for Military Airworthiness and Certification for a single aviation grade module routinely run into years.
    3. An import ban does not create capability: Prohibiting an import without a working domestic alternative simply postpones the requirement, e.g. the Kaveri engine programme began in 1989 and the Light Combat Aircraft still flies on the imported GE F404.
    4. Working capital stress for small vendors: An MSME must fund development, tooling and inventory ahead of an order it may receive years later, e.g. procurement cycles under the Defence Acquisition Procedure, 2020 routinely run beyond 100 weeks from acceptance of necessity to contract.
    5. Quality escapes damage the case for domestic sourcing: A defective indigenous item costs more credibility than an imported one, e.g. the Comptroller and Auditor General’s 2019 report on ammunition management flagged defective ammunition from Ordnance Factory Board units causing accidents and monetary loss.
    6. Import substitution is not export competitiveness: Substituting an import for the home market does not make the product globally saleable, e.g. India stayed among the world’s largest arms importers through 2020 to 2024 even after five lists had been notified.

    Conclusion

    The sixth Positive Indigenisation List stands notified, with 405 items worth Rs 3,070 crore, split as 16 Indian Coast Guard items and 389 DPSU items, and uploaded on the SRIJAN Defence Portal. The next milestone is item wise indigenisation within the notified timeframes, with the outer deadlines running to December 2031, after which the listed items may be procured only from Indian industry.