India's industrial equipment manufacturers are quietly becoming essential players in the global AI infrastructure race, not by building data centers themselves, but by supplying the backup and auxiliary power systems that keep them running. Three Indian companies with deep roots in power equipment and infrastructure are now capturing significant orders from hyperscalers and data center operators seeking reliable energy solutions for mission-critical facilities.

Why Does Backup Power Matter for AI Data Centers?

When a data center loses power, even for seconds, the financial and operational consequences are catastrophic. AI training runs that consume millions of dollars in computing resources can be interrupted, data can be corrupted, and customer services can go offline. This is why hyperscalers and data center operators invest heavily in backup power systems, diesel generators, and auxiliary equipment that can bridge the gap between a grid failure and the activation of backup systems. These aren't afterthoughts; they're mission-critical infrastructure.

Kirloskar Oil Engines, a Pune-based manufacturer, exemplifies this trend. The company produces diesel engines, generator sets, pumps, and related power equipment that serve farms, factories, railways, defense projects, and increasingly, data centers across India and overseas. In a sign of the growing demand, Kirloskar recently secured a 192 megawatt data center order from HyperNext, one of the largest backup power contracts in the company's history.

What Role Do Indian Infrastructure Giants Play in This Shift?

Beyond equipment suppliers, larger engineering and construction firms are also positioning themselves at the intersection of nuclear energy, power grids, and data center infrastructure. Larsen and Toubro, a Mumbai-based engineering and construction group, generates revenue across infrastructure, utilities, energy, and technology platforms. The company maintains a record order book of approximately 6.13 trillion Indian rupees and is increasingly involved in data center and energy projects globally.

Bharat Heavy Electricals, a New Delhi-based engineering company, designs and supplies heavy equipment and full power plants across coal, gas, hydro, and nuclear power sectors. The company has recently achieved strong earnings growth, with a net profit margin of 6.8 percent, and is positioned to benefit from India's push into nuclear, hydro, solar, and emerging green hydrogen technologies. The company is also collaborating with thyssenkrupp nucera on green hydrogen projects, adding another dimension to its infrastructure exposure.

How to Evaluate Indian Power Infrastructure Stocks for AI Exposure

• Order Book Strength: Look for companies with large, diversified order books that include data center, nuclear, and grid modernization projects. A robust pipeline indicates sustained demand from hyperscalers and government infrastructure initiatives.
• Revenue Diversification: Examine whether the company generates revenue from multiple segments, including B2B industrial sales, exports, and financial services. Companies relying on a single revenue stream face higher risk if one sector weakens.
• International Exposure: Companies with meaningful export revenue and overseas project experience are better positioned to capture global data center and infrastructure opportunities beyond India's borders.
• Balance Sheet and Funding Risk: Assess external borrowing levels and dividend sustainability. Companies with heavy reliance on external debt may face pressure if interest rates rise or project execution delays occur.
• Margin Trends: Monitor net profit margins and earnings growth forecasts. Strong margins indicate operational efficiency and pricing power, while declining margins may signal competitive pressure or cost inflation.

Kirloskar Oil Engines generates most of its revenue from the B2B segment at 56.9 billion Indian rupees, with smaller contributions from B2C at 11.4 billion rupees and financial services at 8.8 billion rupees. The bulk of its 77 billion rupee revenue base comes from India at 68 billion rupees, with exports contributing 9 billion rupees. For investors tracking nuclear energy and critical power themes, the company's involvement in India's push for reliable backup power in infrastructure and data centers, supported by a broad engine and generator set portfolio, represents a meaningful exposure to the AI infrastructure buildout.

Larsen and Toubro's diversified revenue streams span infrastructure and utilities at 1,348.6 billion rupees, energy conventional at 566.8 billion rupees, technology platforms and services at 565.6 billion rupees, financial services at 189.2 billion rupees, and manufacturing and products at 148.6 billion rupees. This breadth provides exposure to multiple infrastructure and energy themes simultaneously, though it also introduces complexity in evaluating which segments are driving growth.

Bharat Heavy Electricals generates most of its revenue from power at 274.3 billion rupees, with a smaller but meaningful contribution from industry at 85.7 billion rupees. The company's exposure to large-scale power equipment and grid projects positions it to benefit from India's focus on both baseload power and cleaner technologies, including nuclear, hydro, solar, and green hydrogen. Recent earnings growth has been very strong, with forecasts indicating fast earnings and revenue growth supported by major orders in supercritical thermal, gas turbine, and overseas contracts.

What Are the Key Risks Investors Should Watch?

While these companies offer compelling exposure to the AI infrastructure and nuclear energy themes, investors should be aware of several risk factors. High reliance on government and Middle East projects, use of external borrowing, unstable dividend histories, and governance concerns are present across the sector. Additionally, companies heavily dependent on diesel technology face long-term transition risks as the industry shifts toward renewable and nuclear power sources. Valuation multiples, particularly for companies with strong recent earnings growth, may already reflect optimistic expectations, leaving limited margin for disappointment.

The real opportunity for investors lies not in betting on a single company, but in understanding how these firms fit into the broader infrastructure ecosystem supporting the AI data center boom. As hyperscalers race to secure power for their facilities, the suppliers of backup systems, grid equipment, and construction services may prove just as valuable as the data center operators themselves.