India accelerates its journey toward a sustainable and low-carbon future, nuclear energy is emerging as a critical pillar in the nation’s energy mix. With ambitious plans to triple its nuclear power capacity to 22,480 MW by 2031 and a long-term vision of achieving 100 GW by 2047.
Indian government is paving the way for significant growth in this sector. For investors, this presents a unique opportunity to tap into nuclear energy stocks in India—companies poised to benefit from the country’s clean energy revolution.
In this article, we’ll explore the top nuclear energy stocks in India, their roles in the sector, and why they deserve a spot on your investment radar.
Nuclear Energy Sector
India, the world’s third-largest electricity producer, currently derives just 1.8% of its power from nuclear sources, with 24 operational reactors generating 8,180 MW. However, the government’s push for net-zero emissions by 2070 and the increasing demand for reliable, round-the-clock energy have spotlighted nuclear power as a dependable alternative to fossil fuels.
Nuclear Energy Mission for Viksit Bharat, announced in the 2025-26 budget, further underscores this commitment, with plans for small modular reactors (SMRs) and private-sector participation. For Indian investors, this translates into a promising growth story for stocks linked to nuclear energy infrastructure, equipment manufacturing, and power generation.
1. Bharat Heavy Electricals Ltd (BHEL)
Bharat Heavy Electricals Ltd (BHEL), a Maharatna PSU, is a linchpin in India’s nuclear energy framework. BHEL designs and manufactures critical nuclear components, including steam generators, reactor headers, turbine-generator sets, and pressurizers for reactors ranging from 220 MWe to 700 MWe. Its long-standing partnership with the Nuclear Power Corporation of India Ltd (NPCIL) has solidified its role, evidenced by the delivery of its 45th nuclear steam generator in Q2 FY25 for the Gorakhpur Haryana Anu Vidyut Pariyojana (GHAVP), a 4×700 MW project.
BHEL’s nuclear portfolio also includes contributions to the Kudankulam Nuclear Power Plant and the Prototype Fast Breeder Reactor (PFBR) at Kalpakkam. Financially, it reported ₹23,893 crore in revenue for FY24, though its net profit of ₹275 crore reflects a slim 1.15% margin, with an RoE of 1.77% over three years. Trading at ₹245 on the NSE in March 2025, with a market cap of ₹85,000 crore, BHEL’s modest 5-year revenue CAGR of 3.2% belies its indispensable role in India’s nuclear ambitions, offering stability for risk-averse investors.
2. Larsen & Toubro Ltd (L&T)
Larsen & Toubro Ltd (L&T) is a global engineering leader with a dominant presence in India’s nuclear energy infrastructure. Its Heavy Engineering division fabricates reactor pressure vessels, steam generators, and heat exchangers, while its construction arm builds nuclear power plants. L&T has been instrumental in projects like the Kudankulam Nuclear Power Plant (2×1000 MW) and collaborates with global firms like Westinghouse for AP1000 reactors and Russia’s Atomstroyexport for VVER designs.
Its nuclear credentials extend to supplying forgings and piping for the 500 MW PFBR at Kalpakkam. In FY24, L&T reported ₹1,08,236 crore in revenue from its engineering segment, with a 5-year revenue CAGR of 10.3% and an RoCE of 13.3%. Trading at ₹3,650 on the NSE in March 2025, its market cap exceeds ₹5 lakh crore. L&T’s exposure to India’s planned 10,000 MW nuclear capacity addition by 2032, including six large units under the India-Russia pact, positions it as a premium nuclear energy stock for Indian investors.
3. Tata Power Company Ltd
Tata Power Company Ltd, a Tata Group flagship, is expanding its 14,381 MW portfolio—spanning thermal, hydro, and renewables—into nuclear energy. While its nuclear involvement is in early stages, Tata Power has expressed intent to partner with NPCIL for small modular reactors (SMRs) and conventional nuclear projects, aligning with India’s goal of 22,480 MW by 2031. Its subsidiary, Tata Consulting Engineers, has provided design consultancy for nuclear facilities like the Rajasthan Atomic Power Station.
In FY24, Tata Power achieved a PAT of ₹4,280 crore on ₹61,542 crore in revenue, with a 5-year revenue CAGR of 15.5% and an RoE of 11.2%. Trading at ₹435 on the NSE in March 2025, its market cap is ₹1.39 lakh crore. As nuclear power complements its clean energy focus, Tata Power offers Indian investors a diversified entry into nuclear energy stocks with strong growth prospects.
4. Hindustan Construction Company Ltd (HCC)
Hindustan Construction Company Ltd (HCC) has a storied legacy in nuclear civil engineering, contributing to over 5,780 MW of India’s nuclear capacity—about 60% of the total. HCC’s expertise spans reactor building construction, cooling towers, and auxiliary structures, with landmark projects including the Kudankulam Nuclear Power Plant (Tamil Nadu), Rajasthan Atomic Power Station, and Narora Atomic Power Station.
It is currently involved in the GHAVP project, which will add 2,800 MW. HCC targets a ₹2,000–3,000 crore share of the ₹15,000–20,000 crore annual nuclear civil works market. In FY24, it reported ₹1,325 crore in revenue and a net profit of ₹246 crore, with a 5-year revenue CAGR of 4.8%. Trading at ₹48 on the BSE in March 2025, its market cap is ₹7,200 crore. HCC’s deep nuclear expertise makes it a specialized pick among nuclear energy stocks in India.
5. Power Mech Projects Ltd
Power Mech Projects Ltd is a rising star in nuclear plant construction, specializing in erection, testing, and commissioning of nuclear equipment. In 2024, it secured a ₹563 crore order from BHEL for the Kaiga Atomic Power Project (4×700 MW) in Karnataka, reinforcing its role in India’s nuclear expansion. The company also supports NPCIL’s fleet of 700 MW PHWRs (Pressurized Heavy Water Reactors) and has exposure to India-Russia nuclear projects, such as Kudankulam’s Units 5 and 6.
In FY24, Power Mech reported ₹4,200 crore in revenue and ₹248 crore in net profit, with a 5-year revenue CAGR of 13.2% and an RoCE of 21%. Trading at ₹5,800 on the NSE in March 2025, its market cap is ₹9,200 crore, backed by a ₹3,500 crore order book. Power Mech’s nuclear focus offers high-growth potential for Indian investors.
6. Walchandnagar Industries Ltd
Walchandnagar Industries Ltd has been a quiet yet vital contributor to India’s nuclear sector for over 40 years, manufacturing calandrias, end shields, and dump tanks for PHWRs. It has supplied equipment for the Kaiga, Kakrapar, and Tarapur reactors and is involved in the 500 MW PFBR at Kalpakkam.
As of Q3 FY25, its ₹1,000 crore order book includes 30% nuclear-related projects, with plans to expand capacity for India’s 10,000 MW nuclear addition by 2032. In FY24, it posted ₹295 crore in revenue but a net loss of ₹17 crore due to debt pressures. Trading at ₹320 on the BSE, its market cap is ₹1,500 crore. Despite financial volatility, its nuclear legacy makes it a speculative microcap among nuclear energy stocks in India.
7. NTPC Ltd
NTPC Ltd, India’s largest power producer with a 63,000 MW capacity, is entering the nuclear arena via its “ASHVINI” joint venture with NPCIL. This collaboration targets 4.2 GW by FY32 through projects like Mahi Banswara (4×700 MW) in Rajasthan and Chutka (2×700 MW) in Madhya Pradesh, both leveraging indigenous PHWR technology.
NTPC’s nuclear push complements its thermal dominance and aligns with India’s net-zero goals. In FY24, it reported ₹1,76,207 crore in revenue and ₹21,332 crore in PAT, with a 5-year revenue CAGR of 11.8% and an RoE of 12.5%. Trading at ₹398 on the NSE in March 2025, its market cap is ₹3.86 lakh crore. NTPC’s scale and nuclear diversification make it a blue-chip nuclear energy stock for Indian investors.
8. MTAR Technologies Ltd
MTAR Technologies Ltd excels in precision engineering for nuclear reactors, producing fuel rods, control assemblies, and coolant channels for NPCIL and BARC. It supports the PFBR at Kalpakkam and PHWRs nationwide, with a ₹650 crore nuclear order pipeline projected for FY25. MTAR’s expertise extends to export markets, supplying components for US and French nuclear programs.
In FY24, it reported ₹580 crore in revenue and ₹56 crore in net profit, with a 5-year revenue CAGR of 18.6%. Trading at ₹1,750 on the NSE, its market cap is ₹5,400 crore as of March 2025. MTAR’s technical prowess positions it as a high-growth mid-cap among nuclear energy stocks in India.
9. Patels Airtemp India Ltd
Patels Airtemp India Ltd, a microcap specialist, manufactures heat exchangers, pressure vessels, and condensers for nuclear plants, earning ASME N-Stamp certification in 2017—a rare accolade for Indian firms. It supplies NPCIL for projects like Kakrapar and GHAVP, contributing to steam cycle efficiency in PHWRs.
In FY24, it posted ₹370 crore in revenue and ₹32 crore in net profit, with a 5-year revenue CAGR of 13.3% and an RoCE of 20.87%. Its order book is ₹442 crore as of Q3 FY25. Trading at ₹700 on the BSE, its market cap is ₹380 crore. Patels Airtemp’s nuclear focus offers a niche, high-return option for Indian investors.
10. Konstelec Engineers Ltd
Konstelec Engineers Ltd provides electrical EPC services for nuclear facilities, specializing in control systems, instrumentation, and lighting solutions. It serves BARC’s research reactors and NPCIL’s operational plants, including Tarapur and Rawatbhata. Its nuclear projects enhance safety and operational efficiency, critical for India’s 700 MW PHWR fleet.
In FY24, Konstelec reported ₹215 crore in revenue and ₹15 crore in net profit, with a 5-year revenue CAGR of 13% and a ₹560 crore order book as of March 2025. Trading at ₹180 on the NSE, its market cap is ₹270 crore. Konstelec’s specialized role makes it an emerging nuclear energy stock in India.
11. DP Wires Ltd
DP Wires Ltd produces high-strength steel wires and cables used in nuclear plant construction, such as reactor building reinforcements and cooling tower frameworks. With an 80,000-ton annual capacity, it supplies NPCIL and L&T for projects like Kudankulam and GHAVP.
Its nuclear-grade products ensure structural integrity under extreme conditions. In FY24, it reported ₹1,025 crore in revenue and ₹36 crore in net profit, with a 5-year revenue CAGR of 12.5%. Trading at ₹420 on the NSE, its market cap is ₹650 crore as of March 2025. DP Wires offers a niche, steady-growth option among nuclear energy stocks in India.
12. Kirloskar Electric Company Ltd
Kirloskar Electric Company Ltd manufactures AC/DC motors, generators, and transformers for nuclear power plants, powering auxiliary systems in NPCIL’s PHWRs and NTPC’s upcoming nuclear projects. Its equipment supports the Tarapur Atomic Power Station and Kaiga Generating Station, ensuring reliable energy output.
In FY24, it reported ₹557 crore in revenue and ₹31 crore in net profit, with a 5-year revenue CAGR of 6.7%. Trading at ₹225 on the BSE, its market cap is ₹1,500 crore. Kirloskar’s nuclear contributions and financial turnaround make it a sleeper hit among nuclear energy stocks in India.
13. Sealmatic India Ltd
Sealmatic India Ltd, a sealing technology innovator, is pursuing nuclear-grade certification for mechanical seals used in reactor coolant pumps and containment systems. Its products aim to enhance safety in NPCIL’s PHWRs and the PFBR at Kalpakkam.
In FY24, it reported ₹134 crore in revenue and ₹14 crore in net profit, with a 5-year revenue CAGR of 15%. Trading at ₹650 on the BSE, its market cap is ₹175 crore as of March 2025. Sealmatic’s potential to secure nuclear contracts positions it as a high-risk, high-reward microcap among nuclear energy stocks in India.
India’s nuclear energy sector stands at the cusp of a transformative era, blending innovation with sustainability to power the nation’s future. With a clear roadmap to achieve 22,480 MW by 2031-32 and a growing emphasis on clean energy, the stocks highlighted in this guide—from industry giants like BHEL and L&T to emerging players like Sealmatic and Konstelec—offer Indian investors a diverse palette of opportunities.
Whether you’re drawn to the stability of blue-chip companies or the high-growth potential of microcaps, these nuclear energy stocks reflect the sector’s promise and its challenges. As India strides toward energy security and a net-zero future, investing in this space could be a step toward aligning financial goals with national progress. However, diligence and strategic planning are key—equip yourself with research, weigh the risks, and let these stocks light the way to a brighter investment horizon.
Disclaimer: The information in this article is for informational purposes only and does not constitute financial advice. Investing involves risks, Readers should conduct their own research and consult with a certified financial advisor before making investment decisions.
