India's Nuclear Leap: Why Tata Power and Reliance Industries Could ride the reactor Wave
- Anjali Rose Abraham
- 3 days ago
- 3 min read
On the evening of April 6, 2026, a team of Indian scientists and engineers at Kalpakkam in Tamil Nadu did something only one other country has managed. A 500 MWe (Mega Watt electric) Prototype Fast Breeder Reactor (PFBR) successfully initiated a sustained and controlled nuclear fission chain reaction. These PFBRs, unlike ordinary reactors, which deplete fuel, convert non-useable materials into fuel while generating energy.
But the real story is not just the reactor. India has set a target of 100 GW of nuclear energy by 2047. It has replaced a 60-year-old law by opening the nuclear industry to private companies, and put over $200 billion worth of infrastructure investment on the table. For a country that currently draws just 3% of its electricity from nuclear power, this is a massive pivot!
India is the third-largest electricity producer in the world, with a total installed capacity of roughly 466 GW. Coal dominates at about 73% of generation. At the same time, nuclear energy currently sits at just about 3%, generated by 24 reactors with a combined capacity of roughly 8 GW.
Coal has served India well, but the long-term risks are clear: rising carbon emissions, fuel import costs, and a global shift toward cleaner energy. Renewables are growing fast, but solar and wind are not consistent. They need a stable, round-the-clock partner. The government believes nuclear energy is a partner.
The Nuclear Energy Mission
In February 2025, Finance Minister Nirmala Sitharaman announced the Nuclear Energy Mission for Viksit Bharat and declared that 100 GW of nuclear capacity by 2047 is essential for India’s energy transition. That is a twelve-fold increase from today.
The government backed this with Rs 20,000 crore for developing at least five indigenous Small Modular Reactors (SMRs) by 2033. The Budget 2026-27 has also allocated Rs 24,124 crore for the Department of Atomic Energy, and customs duty exemptions on nuclear imports have been extended till 2035.
Why are we choosing Nuclear?
India holds only 1-2% of global uranium reserves but sits on roughly 25% of the world’s known thorium. The Atomic Minerals Directorate estimates about 1.07 million tonnes of thorium metal in Indian deposits, concentrated in the beach sands of Kerala and Odisha. India is following three-stage nuclear programme, designed by Dr Homi Bhabha, was built to exploit this advantage.
The previously mentioned Kalpakkam PFBR, sits right at the heart of Stage 2. It is designed to eventually use thorium in its blanket. India is building a system where the reactor creates its own fuel, and the ultimate fuel source is something the country has in abundance.
Beyond thorium, the push is driven by reliable 24/7 base-load power needs for industries and Data centres. India’s net-zero-by-2070 commitment, reduced import dependence, and global momentum are also key drivers of this change.
How India is making it happen
The biggest structural change is the SHANTI Act, passed in December 2025, which replaces the 1962 Atomic Energy Act and the 2010 Civil Liability Act. It allows private companies to build, own, and operate nuclear plants, introduces a graded liability framework, gives the AERB statutory recognition, and keeps sensitive fuel cycle activities under government control.
Six industrial houses (Hindalco, Jindal Steel, Tata Power, Reliance, JSW Energy, and Adani Power) have already responded to NPCIL’s call for Bharat Small Reactor proposals, identifying 16 sites across six states.
BARC is developing three SMR designs. India has also signed partnership agreements with France and the US, and is repurposing retiring coal plant sites for new reactors.
Companies on the Radar
No listed Indian company directly generates nuclear power (NPCIL is unlisted). Investors seeking exposure must look at the supply chain:
Will India Meet Its Targets?
Although India has missed nuclear targets in the past, conditions have changed since then. The SHANTI Act removes decades-old private sector barriers. Along with that, international partnerships are stronger than ever.
The aim of 100 GW by 2047 is pretty ambitious. But even just reaching 50-60 GW could completely transform India. The key variables are sustained policy commitment, capital mobilisation, and whether SMR technology delivers on its promise.
India's $180-214 billion nuclear leap will work wonders across sectors:
EPC firms will see multi-decade order pipelines; heavy manufacturers will supply reactor-grade components; steel and cement makers will benefit from massive infrastructure builds; R&D and education sectors see sustained demand for skilled nuclear talent, and almost every other industry will see changes.
The question is no longer whether India will expand its nuclear program. It is how fast, how big, and who will be in the room when it happens.
Disclaimer: This content is for educational purposes only; please conduct personal research and consult a qualified investment advisor before making any investment decisions.
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