3 Indian Nuclear Stocks To Own In September 2026

China and the US just agreed to reduce tariffs by $30b and open fresh talks on artificial intelligence. That points to a slightly calmer backdrop for trade and technology, which matters for capital hungry infrastructure such as nuclear power in India. If you care about long term clean energy themes and do not want to chase short term headlines, this article highlights three nuclear related India stocks to research next.

The three India focused nuclear ideas in this piece are just a sample, and the full screen on Simply Wall St surfaced 19 more companies with equally detailed stories that are not covered here. To map out the broader opportunity, head straight to the Nuclear Energy Stocks screener to identify, filter and analyze the nuclear energy stocks that best fit your conviction and risk profile.

Kirloskar Oil Engines (NSEI:KIRLOSENG)

Overview: Kirloskar Oil Engines supplies diesel and energy solutions across industries, including specialized backup power systems and equipment used in nuclear facilities.

Operations: The business generates about ₹58,979 million from B2B activities, ₹11,478 million from B2C, and ₹8,932 million from financial services.

Market Cap: ₹310.7 billion

For the Nuclear Energy Stocks theme, Kirloskar Oil Engines matters because its critical backup power equipment helps keep highly sensitive nuclear installations running safely when the grid does not.

"Sustained demand from infrastructure, commercial real estate, and data center development in India, supported by ongoing urban expansion and large infrastructure investments, is an important factor for the core power generation (PowerGen) and industrial engine segments."

The key factor for Kirloskar Oil Engines is how one quiet shift in its high-margin backup solutions influences future profitability.

That quiet shift is exactly what the full narrative for Kirloskar Oil Engines unpacks, revealing how backup power demand, capital intensity and nuclear exposure could be pulling in different directions.

Larsen & Toubro (BSE:500510)

Overview: Larsen & Toubro is a large engineering and EPC group whose Hi-Tech Manufacturing arm supplies nuclear-grade equipment and systems for reactors.

Operations: Larsen & Toubro reports about ₹1.35t from Infrastructure & Utilities, ₹566.8b from Energy, ₹565.6b from Technology, Platforms & Services, and ₹148.6b from Manufacturing & Products.

Market Cap: ₹5.34t

Larsen & Toubro brings nuclear energy exposure through its high-integrity manufacturing work for reactors, wrapped inside a much broader infrastructure and energy business.

"The company's record-high order book (₹6.13 trillion, up 25% YoY) and a rapidly expanding order prospects pipeline, especially in infrastructure (+32%) and hydrocarbon (more than doubled), are described as positioning L&T to capture sustained project inflows amid ongoing urbanization, rising infrastructure investment, and supportive government initiatives."

What matters next is how any shift in nuclear-linked orders inside Hi-Tech Manufacturing ultimately shows up in group profitability.

Those shifts in project mix and profitability are exactly what the full narrative for Larsen & Toubro unpacks. The analysis shows where Larsen & Toubro's order momentum could be masking emerging nuclear upside.

Bharat Heavy Electricals (BSE:500103)

Overview: Bharat Heavy Electricals is a New Delhi based engineering group that builds power plants and heavy equipment, including nuclear power plant systems and components.

Operations: Bharat Heavy Electricals generates about ₹274.3b from its Power segment and ₹85.7b from its Industry segment, primarily within energy infrastructure.

Market Cap: ₹1,459.7b

Bharat Heavy Electricals provides exposure to nuclear power plant development through its role supplying turbines, steam generators and other heavy equipment, while remaining a diversified power and industrial contractor. Its earnings trends and margins are important factors to monitor, particularly in relation to how nuclear project orders affect overall profitability.

Those swings in profitability are where the story gets interesting. Read the analysis report for Bharat Heavy Electricals to see how Bharat Heavy Electricals' nuclear pipeline could be reshaping its earnings profile.

Seeking Alternatives Before Momentum Flies

Fresh themes are breaking out, prices move fast, and the best ideas rarely stay under the radar for long. Scan these curated lists before the crowd catches on and consider how they fit your approach.

• Identify early-stage momentum and track 129 elite penny stocks with strong financials that could move quickly once liquidity builds and attention shifts toward smaller, cleaner balance sheets.
• Explore structural themes by filtering 85 AI infrastructure stocks supporting the computing buildout before demand narratives are fully reflected in these enabler stocks.
• Monitor macro turns by checking the 36 elite gold producer stocks that some investors rotate into when volatility picks up and capital seeks perceived resilience.

This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.

Have feedback on this article? Concerned about the content? Get in touch with us directly. Alternatively, email editorial-team@simplywallst.com