India's Nuclear Energy Journey — A Complete Base Article for UPSC Mains

Today we are going to walk through the entire story of India's nuclear energy programme — from the 1950s when a young physicist named Homi Bhabha drew up a dream on paper, all the way to July 2026, when India and Australia signed a deal for long-term uranium supply. Along the way, we will understand why India was denied nuclear technology for decades, how sanctions forced us to build everything ourselves, what the three-stage nuclear programme actually means (in plain language, not textbook jargon), how the Indo-US deal of 2008 changed everything, why a reactor at Kalpakkam that achieved criticality in April 2026 is such a big deal, and what the SHANTI Act of 2025 means for the future of nuclear energy in India.

After reading this, if UPSC asks you anything about India's nuclear programme — whether it is the three-stage plan, the Fast Breeder Reactor, indigenisation of nuclear technology, the role of private players, Small Modular Reactors, nuclear safety and liability, India's uranium supply diplomacy, or why AI data centres are driving a nuclear energy revival globally and in India — you will have the answer ready. This piece covers the full territory: the science made simple, the policy made clear, the AI-energy connection made visible, and the debates made honest.

The Dream and the Dreamer

Let us start at the very beginning. It is 1944. A brilliant Indian physicist named Homi Jehangir Bhabha writes a letter to the Tata Trust. He wants to set up a nuclear research institute in India. Think about that for a moment. India has not even become independent yet, and this man is already thinking about nuclear energy for India's future. By 1945, the Tata Institute of Fundamental Research is born in Bombay.

Right after Independence, in 1948, the Atomic Energy Act is passed. In 1954, the Department of Atomic Energy (DAE) is created, directly under the Prime Minister — and it stays that way to this day. No other ministry sits in between. That is how seriously India has always taken nuclear matters.

Now, here is the puzzle Bhabha had to solve. India had very little uranium — only about 1–2% of the world's known uranium reserves. But India had mountains of thorium — roughly 25% of the entire world's thorium, sitting in the monazite sands of Kerala, Tamil Nadu, and other coastal areas. Thorium, however, cannot be used directly as nuclear fuel. It needs to be converted through a series of nuclear reactions into a usable form (Uranium-233). So Bhabha designed a brilliant three-step plan to gradually move India from uranium (which we had little of) to thorium (which we had plenty of). This three-stage nuclear power programme, drawn up in 1954, remains the backbone of India's nuclear energy strategy seven decades later.

The Three-Stage Programme — Made Simple

Think of it like cooking a three-course meal, where the leftover from each course becomes the raw material for the next one.

Stage 1 — Pressurised Heavy Water Reactors (PHWRs): You start with natural uranium as fuel. These reactors use heavy water (a special form of water where the hydrogen atoms are heavier than normal — called deuterium oxide) as both the coolant and the moderator (the substance that slows down neutrons so fission happens efficiently). As the uranium burns, some of it naturally converts into a new element — Plutonium-239. This plutonium is the "leftover" that feeds Stage 2. India has been running this stage since 1969, when the Tarapur Atomic Power Station went live. Today, most of India's 24 operational reactors are PHWRs. India now builds 700 MW PHWRs entirely on its own — no foreign help needed.

Stage 2 — Fast Breeder Reactors (FBRs): This is where things get clever. You take the plutonium produced in Stage 1 and mix it with natural uranium to create a special fuel called MOX (Mixed Oxide). The reactor burns this fuel using fast neutrons (no moderator is used to slow them down — hence "fast"). Here is the magic: in the process, the reactor actually breeds more fuel than it burns. Uranium-238 sitting in a "blanket" around the core gets converted into more Plutonium-239. So you are not just generating electricity — you are manufacturing tomorrow's fuel at the same time. Eventually, thorium will also be placed in this blanket, and through the same process, it will be converted into Uranium-233, which opens the door to Stage 3.

The 500 MW Prototype Fast Breeder Reactor (PFBR) at Kalpakkam in Tamil Nadu achieved first criticality on 6 April 2026. This means the reactor sustained a controlled chain reaction for the first time. India is now only the second country in the world, after Russia, to operate a commercial-scale fast breeder reactor. This event formally marks India's entry into Stage 2.

Stage 3 — Thorium-Based Reactors: This is the ultimate goal. You use the Uranium-233 produced in Stage 2 (from thorium) as fuel, paired with thorium itself. If this works at scale, India's thorium reserves could power the country for centuries. This stage is still largely in the research and development phase. The Bhabha Atomic Research Centre (BARC) has been working on designs for an Advanced Heavy Water Reactor (AHWR) that uses thorium, but commercial deployment is still years away.

📌 Prelims Anchor — Three-Stage Nuclear Programme

• Designed by: Homi J. Bhabha, 1954
• Stage 1: PHWRs, natural uranium fuel, heavy water moderator, produce Plutonium-239
• Stage 2: Fast Breeder Reactors, use Plutonium-239 + Uranium-238, breed more fuel than they burn
• Stage 3: Thorium-based reactors, use Uranium-233 (from thorium conversion)
• India has ~25% of world's thorium but only ~1–2% of uranium
• PFBR at Kalpakkam achieved first criticality: 6 April 2026. Operator: BHAVINI (Bharatiya Nabhikiya Vidyut Nigam Ltd.)
• Stage 1 operator: NPCIL (Nuclear Power Corporation of India Ltd.). Both are under the DAE.
• UPSC Trap: Confusing the moderator in PHWRs (heavy water) with the moderator in Light Water Reactors (ordinary/light water). Also, FBRs do NOT use a moderator — they use fast neutrons. Another trap: confusing "first criticality" with "full commercial operation" — criticality only means the chain reaction is self-sustaining; commercial power generation comes later after testing.

Sanctions, Isolation, and the Forced March Toward Self-Reliance

Now comes the painful chapter. In 1974, India conducted its first nuclear test — "Smiling Buddha" — at Pokhran in Rajasthan. India called it a "peaceful nuclear explosion." The world did not smile back. The United States, Canada, and other Western countries imposed sanctions. The Nuclear Suppliers Group (NSG), formed in 1975 partly in response to India's test, placed India on a technology denial list. Canada, which had helped build India's CIRUS research reactor, stopped all nuclear cooperation.

Think about what this meant. India could not import uranium. India could not import reactor components. India could not buy nuclear technology from anyone. For over three decades — from 1974 to 2008 — India's nuclear programme was essentially under siege.

But here is the twist in the story. These sanctions, painful as they were, forced India to do something remarkable: build everything at home. Every component going into India's nuclear plants — the reactor vessels, the steam generators, the control systems, the fuel assemblies — was designed, tested, and manufactured in India. The Atomic Energy Commission worked in patient partnerships with Indian firms. India's reactor unit size went up from 200 MW to 500 MW, and now to 700 MW. The article we are reading today by former Ambassador Meera Shankar puts a stunning number on this: India now makes the cheapest nuclear power plants in the world, at approximately $1,700 per kilowatt. Compare that with South Korea at $2,200, France at over $5,500, and the United States at a jaw-dropping $15,000 per kilowatt.

This is the core of the indigenisation story. The world shut the door on India, and India built a window. Today, India has the potential to become a major exporter of nuclear power plants — precisely because it was forced to make them on its own.

📌 Prelims Anchor — India's Nuclear Tests

• Smiling Buddha: 18 May 1974, Pokhran, Rajasthan — India's first nuclear test (called a "peaceful nuclear explosion")
• Pokhran-II (Operation Shakti): 11 May 1998 — series of five nuclear tests under PM Atal Bihari Vajpayee
• NSG formed: 1975, partly in response to India's 1974 test. Members: 48 countries (as of 2026)
• India is NOT a signatory to the Nuclear Non-Proliferation Treaty (NPT); India has a voluntary moratorium on nuclear testing
• UPSC Trap: The 1974 test is often called India's "first nuclear test," but India officially called it a "peaceful nuclear explosion" (PNE), not a weapons test. The distinction matters for understanding the diplomatic narrative.

The Game-Changer: The India-US Civil Nuclear Deal (2008)

Fast forward to 2005. US President George W. Bush and Indian Prime Minister Manmohan Singh issue a joint statement that shakes the global nuclear order. They announce a plan to give India access to civilian nuclear technology and fuel — despite India never having signed the NPT.

Why did the US do this? Two reasons worked together. First, the US saw India as a rising democratic counterweight to China and wanted to deepen the strategic relationship. Second, India's massive and growing energy needs meant a huge market for American nuclear companies like Westinghouse and General Electric.

But making this deal happen was like threading a needle through a hurricane. It took three years and required clearing multiple hurdles, one after the other:

The India Nuclear Separation Plan (March 2006) — India agreed to separate its nuclear facilities into civilian and military categories. Only civilian facilities would be placed under international inspection. Military facilities (needed for India's nuclear weapons programme) would remain outside inspections. This was a difficult political compromise within India. Critics said India was giving up too much sovereignty.

The Hyde Act (December 2006) — The US Congress passed a special law authorising nuclear trade with India, overriding existing American legislation that banned such trade with non-NPT countries.

The 123 Agreement (August 2007) — Named after Section 123 of the US Atomic Energy Act, this was the actual bilateral agreement between India and the US, specifying the terms of nuclear cooperation.

The India-IAEA Safeguards Agreement (August 2008) — India signed an agreement with the International Atomic Energy Agency (IAEA) to place its civilian nuclear facilities under IAEA safeguards (inspections). India also signed an Additional Protocol allowing more intrusive inspections.

The NSG Waiver (September 2008) — This was the hardest part. The 45-member NSG (now 48) had to reach consensus to grant India a special exemption from its rules. After intense lobbying by the US, and resistance from countries like China, the NSG gave India a "clean and unconditional waiver" on 6 September 2008. This made India the only country with nuclear weapons that is NOT part of the NPT but is still allowed to engage in nuclear trade with the world.

The result? The three-decade international embargo on nuclear trade with India was over. India could now import uranium, buy reactor technology, and sign nuclear cooperation agreements with multiple countries. Since 2008, India has signed civil nuclear agreements with the US, France, Russia, Canada, South Korea, Mongolia, Kazakhstan, Argentina, Namibia, Australia, and others.

📌 Prelims Anchor — Indo-US Nuclear Deal

• Joint statement: July 2005 (Bush–Manmohan Singh). Separation Plan: March 2006. Hyde Act: December 2006. 123 Agreement: August 2007. IAEA Safeguards Agreement: August 2008. NSG Waiver: 6 September 2008.
• India placed civilian facilities under IAEA safeguards; military facilities stayed out
• Post-deal, India joined 3 export control regimes: MTCR (2016), Wassenaar Arrangement (2017), Australia Group (2018)
• India has NOT joined the NSG as a full member (China blocks membership)
• UPSC Trap: The NSG waiver is NOT the same as NSG membership. India got a waiver (exemption from NSG rules for trade purposes), but India is still NOT a member of the NSG itself. China has repeatedly blocked India's full membership bid.

Nuclear Liability — The Problem That Nearly Killed the Deal

The nuclear deal was signed. Uranium started flowing. But Western companies still did not rush to build reactors in India. Why? One word: liability.

In 2010, India passed the Civil Liability for Nuclear Damage Act (CLNDA). This law had a provision (Section 17b) that allowed the operator of a nuclear plant (say, NPCIL) to sue the equipment supplier if a nuclear accident was caused by defective equipment. This was unusual. In most countries, all liability sits with the operator, not the supplier. This is the global norm under the Convention on Supplementary Compensation (CSC). American and French companies like Westinghouse, GE, and Areva refused to set up plants in India because they feared being dragged into lawsuits if something went wrong.

This supplier liability problem stalled Western reactor projects in India for over a decade. The Kudankulam plant in Tamil Nadu, built with Russian help, moved ahead because Russia's Rosatom accepted the liability terms. But Western companies stayed away. This is one of the key problems the SHANTI Act of 2025 was designed to fix.

The SHANTI Act 2025 — India Rewrites the Rulebook

In December 2025, India's Parliament passed the Sustainable Harnessing and Advancement of Nuclear Energy for Transforming India (SHANTI) Act, 2025. President Murmu gave assent shortly after. This is the biggest shake-up in India's nuclear governance since 1962.

It repeals two old laws and replaces them with one unified framework. The Atomic Energy Act of 1962 and the Civil Liability for Nuclear Damage Act (CLNDA) of 2010 are both gone. A single, modern law now governs everything — from reactor operations to safety regulation to liability in case of accidents.

It opens the door to private players. For the first time in India's history, private companies and incorporated joint ventures can apply for licences to build, own, operate, and decommission nuclear power plants. Until now, this was exclusively a government monopoly — only NPCIL and BHAVINI could run reactors. Companies like JSW Energy, Tata Power, and Adani have already expressed interest.

But it keeps the sensitive stuff with the government. Uranium enrichment, spent fuel management beyond on-site storage, heavy water production, and handling of radioactive substances — these remain exclusively under government control (the DAE). The private sector can generate power, manufacture equipment, and even fabricate nuclear fuel (up to a threshold the government will set), but the strategic heart of the programme stays sovereign.

It fixes the liability problem. The SHANTI Act establishes a graded liability framework with capped operator liability and removes the controversial supplier liability provision that had scared away Western companies for years.

It gives statutory status to AERB. The Atomic Energy Regulatory Board, India's nuclear safety regulator, has existed since 1983 but only as an executive body — it had no statutory backing. The SHANTI Act finally makes AERB a body created by law, strengthening its independence and authority.

It enables the Nuclear Energy Mission. The Union Budget 2025–26 announced a Nuclear Energy Mission with ₹20,000 crore allocation, targeting at least five indigenously designed Small Modular Reactors (SMRs) to be operational by 2033.

📌 Prelims Anchor — SHANTI Act 2025

• Full name: Sustainable Harnessing and Advancement of Nuclear Energy for Transforming India Act, 2025. Passed: December 2025.
• Repeals: Atomic Energy Act, 1962 + Civil Liability for Nuclear Damage Act (CLNDA), 2010
• Key feature: allows the private sector to build, own, operate and decommission nuclear plants
• Sensitive activities (enrichment, spent fuel, heavy water) remain with the Central Government
• AERB gets statutory recognition; graded liability framework with capped operator liability
• FDI: up to 49% under the automatic route in specified nuclear activities
• Nuclear Energy Mission: ₹20,000 crore, target 5 SMRs by 2033. Target: 100 GW nuclear capacity by 2047.
• UPSC Trap: The SHANTI Act does NOT allow foreign companies to directly set up nuclear plants in India. The definition of "company" under the Act excludes companies incorporated outside India. Foreign participation is through FDI (up to 49%) in Indian companies, not direct foreign ownership.

India's Nuclear Numbers Today — Where We Stand

As of mid-2026, here is the picture. India operates 24 nuclear reactors across 7 locations in 6 states. The total installed nuclear capacity is about 8.78 GW (8,780 MW). Nuclear power contributes roughly 3.1% of India's total electricity generation. During 2024–25, nuclear plants generated about 56,681 million units of electricity. Most operational reactors are Pressurised Heavy Water Reactors (PHWRs) — India's workhorse technology. Four Light Water Reactors (LWRs) at Kudankulam are built with Russian cooperation. Eighteen more reactors with a combined capacity of about 13,800 MW are planned or under construction, aiming to take total capacity past 22 GW by 2031–32. The long-term target: 100 GW by 2047.

Going from 8.78 GW today to 100 GW in 21 years means roughly a twelve-fold increase. This is an extraordinarily ambitious target — more than any other country is attempting proportionally. Meeting it will require not just building reactors fast, but building the entire ecosystem: fuel supply chains, trained manpower, regulatory capacity, safety culture, and massive capital investment.

Small Modular Reactors — The New Frontier

A lot of global buzz today is around Small Modular Reactors (SMRs) — reactors with a capacity typically under 300 MW that can be factory-built in modules and assembled on site. They are cheaper per unit, faster to deploy, and can be placed closer to where power is needed — including, crucially, next to the massive data centres that AI companies are building.

In the West, SMR designs are mostly still under development; no commercial SMR is operating yet. India's approach is interesting. The DAE has offered its existing 200 MW reactor technology to new private sector entrants. India is also developing its own SMR designs — the Bharat Small Modular Reactor (BSMR-200) and the SMR-55. The Nuclear Energy Mission targets at least five operational indigenous SMRs by 2033.

The article by Meera Shankar makes a sharp point here: there would be little justification for deploying an untested foreign SMR design in India as a first-of-a-kind experiment. If an SMR has not operated satisfactorily for a few years elsewhere, India should not be the testing ground. This is the self-reliance argument applied to safety: use proven domestic technology first, let foreign designs prove themselves abroad before importing them.

📌 Prelims Anchor — Small Modular Reactors

• Definition: reactors with output typically under 300 MW, factory-built in modules
• Advantage: lower upfront cost, faster construction, flexible deployment. Use case: data centres, remote areas, industrial process heat.
• India's designs: BSMR-200, SMR-55 (under development). Nuclear Energy Mission target: 5 SMRs by 2033.
• Global status: no commercial SMR operational anywhere as of mid-2026
• UPSC Trap: SMRs are NOT a separate "stage" in India's three-stage programme. They are a different form factor — a way of building smaller reactors using existing technology (mostly thermal/fission reactor technology from Stage 1). They complement the three-stage plan, they do not replace it.

The AI Data Centre Hunger — Why Nuclear Energy Just Became Urgent

Now here is the dimension that ties everything together and makes nuclear energy not just important but urgent for India in 2026. Let us talk about AI, data centres, and the jaw-dropping amount of electricity they consume.

Think of it this way. When you ask ChatGPT or a similar AI model a question, that query does not float in the air. It runs on thousands of specialised processors (GPUs) packed into massive server racks, housed inside data centres the size of football fields. These data centres need electricity — not sometimes, not during the day, but every second of every day, without a single interruption. A single AI server rack consumes five to six times more power than a conventional server rack. Training a large AI model can consume as much electricity as a small town uses in a year.

Now multiply that by the scale of what is happening. Globally, data centres consumed roughly 300–400 terawatt-hours (TWh) of electricity in 2022 — about 1–2% of all electricity used on the planet. The International Energy Agency (IEA) projects this could reach 945 TWh by 2030 and 1,200 TWh by 2035. To put that in perspective, 1,000 TWh is more than the total electricity consumption of Japan.

And India is right at the centre of this explosion. Despite hosting less than 5% of global data centres, India accounts for about 20% of global data consumption. The gap is closing fast. The Indian AI market is projected to grow to over $17 billion by 2027. Data centre capacity in India is expected to rise from under 2 GW in 2025 to 8–15 GW by 2030. Reliance Industries has announced a ₹1.6 lakh crore investment in a 1.5 GW AI cluster in Visakhapatnam. Google has committed $15 billion for a 1 GW hyperscale hub. Microsoft's CEO Satya Nadella announced $17.5 billion in India investments over four years starting 2026. India is being called the "next hyperscale battleground."

Here is the problem. Solar and wind energy are cheap, but they are intermittent — the sun does not shine at night, the wind does not blow on demand. AI data centres cannot tolerate downtime. They need what energy engineers call "base-load power" — electricity that is available 24 hours a day, 365 days a year, rain or shine. Coal can provide this, but it defeats India's climate goals. Gas is expensive and import-dependent.

This is where nuclear energy enters — not as a nice-to-have, but as perhaps the only realistic clean energy option that can provide guaranteed, round-the-clock, carbon-free power at the scale data centres need. Union Minister Ashwini Vaishnaw said explicitly after the SHANTI Act was passed that small and modular nuclear reactors offer "feasible and practical solutions" to meet the huge energy demand of data centres. He noted that new reactor designs can be set up on as little as 14 acres of land — compact enough to sit alongside a data centre campus.

Globally, this marriage between nuclear and AI is already happening. Microsoft signed a deal to restart the Three Mile Island nuclear plant in the US specifically to power its data centres. Amazon, Google, and Meta are actively investing in nuclear energy projects. France, where 70% of electricity comes from nuclear, is marketing its nuclear-powered grid as an AI advantage.

For India, the connection is direct: the SHANTI Act opens the door for private companies (many of whom are also building data centres) to invest in nuclear reactors. SMRs, with their smaller footprint and dedicated output, are particularly suited for powering data centre clusters in cities like Hyderabad, Mumbai, and Visakhapatnam. The Nuclear Energy Mission's target of five SMRs by 2033 is not an abstract clean-energy goal — it is a practical necessity if India wants to remain competitive in the global AI race.

There is a deeper strategic point here. Whoever controls the energy supply for AI infrastructure controls the pace of AI development. If India has to depend on imported fossil fuels to power its data centres, it is building its AI future on someone else's energy. Nuclear energy — especially indigenous nuclear energy — makes AI infrastructure truly self-reliant. This is the indigenisation argument applied to the digital economy: just as India built its own rockets when others refused to share technology, India now needs to build its own energy backbone for AI when the stakes are equally high.

But there are real concerns too. Data centres are enormous water consumers — AI data centres in India could drive water usage to 1,068 billion litres annually by 2028, according to some estimates. Nuclear reactors also need cooling water. Placing both near the same water sources creates competition. Regulatory approvals for nuclear plants near data centre hubs (often in or near cities) will face scrutiny. And the public perception challenge is real — communities may resist having a nuclear reactor next to their neighbourhood, even a small modular one.

📌 Prelims Anchor — AI Data Centres and Energy

• Global data centre electricity consumption (2022): ~300–400 TWh (1–2% of global electricity). IEA projection for 2030: ~945 TWh; for 2035: ~1,200 TWh.
• A single AI server rack: 5–6x more power than a conventional rack
• India's data centre capacity: expected to rise from under 2 GW (2025) to 8–15 GW (2030)
• Key investments: Reliance (₹1.6 lakh crore, Visakhapatnam), Google ($15B), Microsoft ($17.5B)
• Minister Vaishnaw: SMRs can be set up on 14 acres, suited for data centres
• Nuclear provides 24/7 base-load power — unlike solar/wind, which are intermittent
• UPSC Trap: Data centres need "base-load" power, not "peak-load." Base-load means continuous, round-the-clock supply. Solar and wind provide variable/intermittent power, which is different. Nuclear and coal provide base-load, but only nuclear does it without carbon emissions.

Two news items triggered this anchor. Let us place each in the larger story we have just learnt.

The opinion article by Ambassador Meera Shankar makes the case for India sticking with its home-built, cost-competitive nuclear technology rather than importing expensive foreign reactors. Her core argument: sanctions forced India to innovate, India now makes the cheapest reactors in the world ($1,700/kW vs. $15,000/kW in the US), the 500 MW Fast Breeder Reactor is getting commissioned, and importing foreign technology — especially untested SMR designs — would be a step backward. She also flags the safety challenge: as India scales up rapidly and brings in new (private sector) players, maintaining its exemplary nuclear safety record will be the toughest test. One nuclear mishap could trigger a public backlash that stops the programme in its tracks, just as Chernobyl did in the West.

The India-Australia uranium deal (finalised during PM Modi's visit to Melbourne on 9 July 2026) is the latest chapter in India's uranium supply diplomacy. Australia holds about 28% of global uranium reserves. The two countries signed a Civil Nuclear Cooperation Agreement back in 2014, but actual commercial uranium exports never took off because the administrative arrangements — the nuts and bolts of how verification and safeguards would work in practice — were never finalised. The July 2026 announcement finally completes this administrative machinery. Australian uranium will now flow to India for exclusively peaceful purposes under IAEA safeguards. Private Australian mining entities will be able to sign commercial contracts with Indian private sector companies — a new development enabled by the SHANTI Act's opening of the sector to private players.

There is an important nuance: Australian uranium can only go to Indian reactors that are under IAEA safeguards (that is, civilian facilities that India has declared and opened for inspection). As of mid-2026, not all of India's reactor capacity falls under safeguards. So the actual pace of uranium imports from Australia will depend on how quickly India commissions new safeguards-compliant reactors.

• India-US Entity List removals (2025): BARC, IGCAR, and Indian Rare Earths removed from the US Commerce Department's Entity List, easing nuclear-related trade. Parent topic: indigenization. Signals deepening US-India nuclear trust.
• Nuclear Energy Mission, Budget 2025–26: ₹20,000 crore allocated for design, development, and deployment of SMRs. Parent topic: st-developments. First dedicated budgetary mission for nuclear expansion.
• Kudankulam Units 3 and 4 (under construction): Two 1,000 MW LWRs being built with Russian cooperation at Kudankulam, Tamil Nadu. Parent topic: st-developments. Will add 2 GW when completed.
• KAPS 3 & 4 dedicated (February 2026): Two indigenous 700 MW PHWRs at Kakrapar, Gujarat, dedicated to the nation by PM Modi. Parent topic: indigenization. Largest indigenous reactors, showcasing Atmanirbhar Bharat in nuclear technology.
• India's ITER contribution: India is fabricating major components (cryostat, cooling water system) for the ITER fusion project in France. Parent topic: st-developments. Demonstrates India's engineering capability in frontier nuclear technology.
• Iran crisis and energy diversification (2026): US-Israel tensions with Iran have put pressure on India's hydrocarbon imports, adding urgency to nuclear energy as an alternative. Parent topic: indigenization. Geopolitical instability reinforces the case for nuclear as a stable, domestic energy source.
• Big Tech nuclear investments globally (2025–26): Microsoft restarting Three Mile Island, Amazon signing nuclear PPAs, Google investing in next-gen reactors — all for data centre power. Parent topic: ai-robotics-emerging. Signals a global nuclear renaissance driven by AI energy demand.

Three-Stage Nuclear Programme, PHWR, Fast Breeder Reactor (PFBR), SHANTI Act 2025, NSG Waiver, India-US Civil Nuclear Deal, Nuclear Liability (CLNDA), Small Modular Reactors, India-Australia Uranium Agreement, AERB statutory status, Nuclear Energy Mission, fission vs fusion, ITER, indigenisation of nuclear technology, AI data centres and nuclear energy demand, and base-load power for digital infrastructure.