India’s nuclear ambitions: How the world’s most populous nation is scaling atomic power

Inside India’s bold nuclear quest: Are massive reactors and new partnerships set to transform its energy future?

India is accelerating its nuclear energy strategy in a bold attempt to meet rising electricity demand, reduce carbon emissions, and enhance long-term energy security. With a population of over 1.4 billion and a fast-growing economy, the country faces mounting pressure to transition from coal dependency to cleaner, more reliable sources of power. In response, New Delhi is doubling down on atomic energy—scaling indigenous reactor designs, fast-tracking foreign collaborations, and exploring next-generation modular technologies.

According to the International Energy Agency (IEA), global nuclear power generation is set to reach record highs in 2025, with more than half of new reactors becoming operational in just two countries: China and India. As of 2025, India’s nuclear generation capacity is approximately 7.5 gigawatts spread across 23 reactors. The country has laid out plans to triple this figure to 22.5 gigawatts by 2031 and scale it further to 70 gigawatts by mid-century.

What policy reforms and international partnerships are powering India’s nuclear resurgence?

Although India’s civilian nuclear program dates back to the 1960s, recent policy shifts have injected fresh momentum. A pivotal 2021 reform allowing up to 74% foreign direct investment in commercial nuclear ventures opened the floodgates for global technology and financing collaborations. In April 2024, India entered into landmark agreements with the United States and France to construct six large-scale nuclear reactors using Westinghouse AP1000 and European Pressurized Reactor (EPR) designs.

These projects will be executed through joint ventures involving India’s state-owned Nuclear Power Corporation of India Limited (NPCIL) and selected private engineering firms. Beyond bringing cutting-edge reactor technologies to Indian soil, these deals offer access to international credit lines—crucial for financing capital-intensive infrastructure.

Additional legislative steps have streamlined regulatory bottlenecks. A 2023 law simplified land acquisition procedures and introduced fast-track environmental clearances for nuclear infrastructure. India has also launched an indigenous nuclear insurance pool to mitigate project risks and attract long-term investors.

The IEA underscores that such reforms align with best practices globally—policies that reward dispatchable, low-emissions energy sources are proving vital for accelerating nuclear rollouts in emerging markets.

How is India scaling its fleet with large reactors and next-generation fast breeder technologies?

In the near term, India’s primary focus is the deployment of twelve indigenously designed 700-megawatt pressurized heavy water reactors (PHWRs) across six locations including Kakrapar, Rajasthan, and Gorakhpur. These PHWRs run on natural uranium and heavy water—a legacy of India’s decades-long nuclear technology isolation that has now matured into a homegrown engineering strength.

Alongside this, two 1,000-megawatt Russian-designed VVER reactors are under construction at Kudankulam, with talks underway for two additional units. This dual strategy—indigenous mid-scale designs paired with imported large-scale reactors—mirrors China’s recent nuclear playbook, which saw completion of multiple large PWRs in 2022.

Perhaps the most strategically significant project is the long-delayed 500-megawatt Prototype Fast Breeder Reactor (PFBR) at Kalpakkam, slated to begin operations in 2025. Fast breeder reactors offer a pathway to close the fuel cycle by reprocessing spent fuel and utilizing thorium—a resource India holds in abundance. This aligns with the final stage of the three-phase nuclear roadmap first proposed by physicist Homi Bhabha, offering the potential for near-complete energy self-sufficiency.

Can small modular reactors help India electrify its rural hinterland?

India is also joining the global shift toward small modular reactors (SMRs), an emerging technology seen as a game-changer for decentralized energy needs. SMRs typically generate less than 300 megawatts and can be pre-fabricated in factories before being deployed to remote or underserved areas.

The IEA reports that SMRs offer quicker construction timelines and lower financing risk compared to traditional nuclear plants. Indian officials have indicated that development of a 300-megawatt light-water SMR is under evaluation, potentially in collaboration with global players such as Rosatom and NuScale Power.

These reactors could play a crucial role in rural electrification, industrial process heating, and green hydrogen production—areas where centralized energy supply often falls short. If India can demonstrate SMR viability domestically, it could open the door to regional exports and technological leadership in the Global South.

What are the key risks facing India’s nuclear energy roadmap in 2025 and beyond?

Despite the ambition, India’s nuclear future faces formidable hurdles. Financing remains the top challenge, as nuclear projects are significantly more capital-intensive than coal or solar. While the long operating lifespan and low fuel costs offer lifecycle advantages, upfront construction costs remain a major deterrent for private participation.

Public perception is another persistent issue. Though India has never experienced a nuclear accident on the scale of Fukushima or Chernobyl, fears around radiation, waste management, and seismic safety continue to stoke local resistance. Experts argue that proactive community engagement and transparent safety governance are crucial to maintain public trust.

There are also concerns around supply chain maturity. India must significantly scale up its ecosystem of component manufacturers, engineering talent, and construction partners to deliver on its multi-gigawatt expansion targets. Any lapses in project timelines or cost discipline could erode investor confidence and delay long-term targets.

How does nuclear energy fit into India’s broader climate and energy strategy?

India’s nuclear pivot is ultimately driven by the need to balance industrial expansion with decarbonization. The country imports about 85% of its crude oil and over 50% of its natural gas, making its economy highly vulnerable to commodity shocks. Nuclear reactors offer a stable, high-capacity baseload that can run for up to two years without refueling.

At the same time, India is committed to achieving net-zero emissions by 2070. Since coal still accounts for nearly 70% of India’s electricity, reducing that dependency is non-negotiable. Nuclear power is among the few clean-energy technologies that can displace coal at scale without compromising reliability.

The IEA estimates that global nuclear reactors have avoided nearly 70 gigatonnes of CO₂ emissions since the mid-20th century. As India ramps up deployment, it aims to contribute meaningfully to that cumulative climate benefit—positioning nuclear as a central pillar of its green transition.

Why India’s nuclear push is bold, pragmatic, and full of potential

From a business and policy perspective, India’s nuclear expansion is not just bold—it’s pragmatically essential. Solar and wind, while abundant, cannot alone meet the demands of heavy industry, 24/7 commercial activity, and urban megacities. The intermittent nature of renewables, combined with India’s nascent grid storage infrastructure, leaves nuclear as one of the only clean, dispatchable options for large-scale power generation.

However, execution remains the Achilles’ heel. India’s track record on large infrastructure—from highways to dams—has been mixed. Cost overruns, regulatory hurdles, and skill shortages have derailed past megaprojects. If the nuclear sector is to scale as planned, policymakers must enforce stricter project accountability, align state and central agencies, and double down on safety and transparency.

The new wave of international partnerships may provide the technical and financial scaffolding, but ultimately India’s success will hinge on building a robust domestic base of reactor operators, engineers, and safety experts. If these building blocks fall into place, India could become the world’s foremost nuclear growth story—a template for how developing nations can scale atomic energy responsibly.

What is the market sentiment on India’s nuclear build-out and listed beneficiaries?

While most of India’s civilian nuclear sector is under state ownership, a handful of publicly traded companies are seeing rising interest from investors. Engineering and heavy equipment firms such as Larsen & Toubro and Bharat Forge have booked new orders for nuclear reactor components. Their stock prices have climbed steadily on expectations of recurring business from NPCIL and affiliated joint ventures.

However, the market remains cautiously optimistic. Investors are tracking project clearances, procurement schedules, and government budget allocations closely. Any slippages in approvals or payments could impact sentiment. For now, equities linked to the nuclear value chain are considered long-term plays, contingent on execution success and continued state backing.