TCS's HyperVault pledges up to $7.4 billion for a 1GW AI campus in India, matching OpenAI's own capacity ceiling

Tata Consultancy Services' data-center unit, HyperVault, said Saturday it will invest up to $7.4 billion -- 700 billion rupees -- to build a 1-gigawatt AI data-center campus on 264 acres outside Hyderabad, India, phased in line with customer demand and with no construction timetable disclosed. The ceiling on that number matches something specific: the 1GW option OpenAI secured from Tata Group in February as HyperVault's first outside customer. Saturday's release doesn't name OpenAI or anyone else as the tenant, which is the open question this story can't yet close.

HyperVault itself is newer than the number suggests. TCS disclosed the business alongside its Q2 earnings on October 9, 2025, incorporated it as a subsidiary three weeks later, and brought in private-equity firm TPG as a partner on November 20 -- a deal in which TPG committed up to Rs 8,820 crore (about $1 billion) toward a combined TCS-and-TPG equity commitment of up to Rs 18,000 crore, with TPG eventually holding between 27.5% and 49% of the unit. That November round, announced on Tata's own newsroom, is the one number in this story with a signed primary announcement behind it -- everything since has been a bigger, less certain number layered on top.

"I am delighted to have TPG join us in our journey to build large GW-scale AI data centers in India, tapping the rapidly growing AI demand." -- N. Chandrasekaran, TCS Chairman

OpenAI became that first outside customer on February 18, when it and Tata Group announced 100 megawatts of initial compute landlord-model capacity -- with an explicit option to scale to a full gigawatt -- alongside a separate deal putting ChatGPT Enterprise across TCS's own workforce. Saturday's 1GW ceiling is numerically identical to that option's top end, and TCS chief executive K. Krithivasan said the site offered "the scale, talent and ecosystem needed to serve global customers." Neither company has said the Hyderabad campus is that option actually being exercised, and Reuters' own account of Saturday's news describes the site's future tenants only as "AI companies and hyperscalers," plural and unnamed.

The gap between the headline ceiling and the money actually raised is the part a company release doesn't volunteer. Only the Rs 18,000 crore TPG round -- roughly a quarter of the new $7.4 billion figure -- has a signed commitment behind it. The rest is described as debt capital to be raised phase by phase against signed customer contracts, from lenders HyperVault has not yet named -- a structure that isn't unusual for a data-center buildout this size, but does mean the $7.4 billion describes what HyperVault *could* spend if every phase finds a paying tenant and every loan closes, not what it has spent or borrowed today. Scale matters here too: OpenAI's confirmed 100MW is, by one outside estimate, roughly two-thirds of a single 150MW phase -- a tenant for the first slice of the campus, not yet evidence of demand for the other 850 megawatts.

Set against India's other big AI-infrastructure pledges from the same February window -- Adani's roughly $100 billion pledge (targeting up to 5GW), announced Feb 17, and Reliance's roughly $110 billion, announced Feb 19 -- HyperVault's number is the smallest of the three by a wide margin, which the standalone $7.4 billion figure doesn't convey on its own.

The three companies are also making different bets on what they're good at. Reliance already runs India's largest telecom network and is building on land and power access it controls; Adani is leaning on its ports-and-energy business to promise renewable-powered sites. TCS is neither -- it is, at its core, a roughly $30-billion-a-year business that bills clients for engineers' time, now renting out sovereign AI data centers to outside labs in the same year agentic tools started automating some of the services work it sells. That reads less like a side bet and more like a hedge against its own core business, a reading the deal's own structure doesn't contradict.

India's data-center market is projected to top $10 billion by 2027, and the country currently captures less than 2% of the roughly $300 billion the industry spends globally on AI capital expenditure each year -- the gap HyperVault, Reliance and Adani are all now racing to close from different starting points, on numbers that share one honest caveat: none of the three has yet put a shovel in the ground on the pledges announced this year.