Whalesbook
India's commitment to achieve Net Zero by 2070 requires a strong, carbon-free base-load power source, with nuclear energy playing a crucial role. The nation plans a massive expansion of its nuclear power capacity, aiming for 100 GW by 2047, a big jump from the current approx 8.8 GW. This ambitious goal is supported by recent policy changes, including the Union Budget 2025-26 and the Sustainable Harnessing and Advancement of Nuclear Technology for India (SHANTI) Bill, which has now become an Act. These reforms are ending decades of state-controlled operations, allowing private investment and marking a new era for specialized engineering firms in this estimated ₹20,000 crore nuclear revolution.
The Precision Powerhouse: MTAR Technologies
Established in 1969, MTAR Technologies is a key player in manufacturing high-precision components for critical sectors like defense, aerospace, and nuclear energy. The company's market cap is around ₹7,383 crore. Its strength lies in making components like fuel machining heads, vital for the safe and continuous running of nuclear reactors. Despite a recent dip in net profits, MTAR Technologies has shown strong sales growth, with a CAGR of 26% from FY20 to FY25, reaching ₹676 crore. EBITDA also grew at a 16% CAGR in the same period, hitting ₹121 crore in FY25. The company's order book remains strong, reported close to ₹1,300 crore as of September 2025, further boosted by recent nuclear orders worth over ₹504 crore in December 2025.
The market is valuing MTAR Technologies at a premium P/E ratio of about 165x, reflecting its unique capabilities and scarcity in the private sector nuclear supply chain. This valuation is much higher than peers like Bharat Electronics and Hindustan Aeronautics, which average around 53x. Recent order wins, including ₹190 crore and ₹310 crore in civil nuclear power, and a revised $41.17 million order (approx ₹370.56 crore), improve revenue visibility into FY27. The stock is trading around ₹2,400 as of January 23, 2026.
The Legacy Muscle: Walchandnagar Industries
Walchandnagar Industries (WIL), with a history since 1908, is the established heavy engineering backbone for India's nuclear program, supplying critical hardware for various reactor types. Once seen as a value trap due to old debt and operational issues, WIL is now undergoing a significant financial and operational makeover. Its key asset is its large-scale fabrication capacity, essential for producing components like the Calandria, the main reactor vessel. As India moves towards fleet procurement of reactors, WIL's manufacturing capacity becomes crucial.
Financially, WIL has significantly reduced its debt, from ₹448 crore in 2022 to ₹194 crore by January 2026, supported by capital infusions and asset sales. While recent financial reports show losses, such as ₹86 crore in FY25 due to specific order provisions, the operating margin in its nuclear and defense segments shows structural improvement. The company's order book was ₹670 crore in December 2025, with defense and nuclear sectors being key contributors. WIL's market cap is around ₹1,032 crore. The company currently has a negative P/E ratio, indicating its ongoing financial restructuring. The stock has seen increased investor interest, especially after the SHANTI Bill's passage, with its share price reaching ₹152 as of January 23, 2026. The company has clarified that this price movement is largely market-driven, beyond the positive impact of nuclear policy reforms.
Small Modular Reactors: The Next Frontier
The future of India's nuclear energy expansion also depends on the development and deployment of Small Modular Reactors (SMRs). The SHANTI Bill has allocated significant funds for these factory-built units, which can be deployed faster for industrial clusters. MTAR is actively developing components for the Bharat Small Modular Reactor (BSMR), while Walchandnagar is using its experience with existing reactor designs as a base for its own SMR-related programs. This shift from large-scale project construction to product-based manufacturing for SMRs could change cash flow cycles for these companies, possibly reducing working capital needs.
Valuation and Outlook
India's energy security mandate and climate goals have strategically positioned MTAR Technologies and Walchandnagar Industries. MTAR's premium valuation of 165x P/E reflects its unique technological advantage and market expectations of sustained order inflows. Walchandnagar, despite past financial issues, is on a recovery path, with its infrastructure and capacity being vital for large-scale nuclear projects. While nuclear energy projects have long gestation periods, these companies are direct beneficiaries of India's sovereign commitment to a carbon-neutral future, making them key entities to watch in the evolving energy landscape.