New Delhi, July 27 -- "AI is not just virtual. It has
physics and real impacts. It
has infrastructure, energy and
hardware that is unseen. There
is always someone suffering."
- Kaveh Madani
Every time an Indian uses UPI, streams a movie or asks an AI a question, somewhere a server wakes up. Electricity flows. Cooling systems engage. Water begins to evaporate. India's digital revolution, celebrated as one of its greatest economic success stories, is also becoming a story of power stations, aquifers and the physical resources that keep the virtual world alive.
Somewhere outside Bengaluru, a groundwater table that has sustained farms for generations is being drawn down faster than it can replenish. A stone's throw away, inside gleaming data centres ringed by chillers and backup generators, thousands of server racks process transactions, store photographs and train AI models for users who will never know what it takes to keep the Cloud afloat. That is the soft, unseen underside of India's data centre boom.
The Boom Itself
The numbers are extraordinary. India's installed data centre capacity has expanded four-fold in five years, from 375 MW in 2020 to 1.5 GW, and is projected to exceed 6.5 GW by Year 2030. $90 billion in investments are in the pipeline and the Government believes AI-linked infrastructure could attract funding worth $200 billion. India has emerged as an attractive global destination for data centres. Mumbai, Hyderabad, Delhi-NCR, Bengaluru and Chennai host nearly two-thirds of the country's installed capacity. This is remarkable.
But every server rack that lights up also draws something down. Water from an aquifer. Power from a stretched grid. Land from scarce urban and peri-urban corridors. Behind every celebratory investment announcement lies a grim question: Can the natural infrastructure keep pace with its digital ambitions?
Thirst Beneath
At their heart, data centres are heat machines. Keeping crores of processors from overheating requires enormous quantities of cooling, which primarily still means evaporating water. The scale is sobering. A single 1-MW facility using evaporative cooling can consume up to 2.55 crore litres of water annually. A mid-sized 20-MW campus needs 40 crore litres every year. India's data centres are estimated to have consumed 15,000 crore litres of water in 2025, a figure likely to more than double by 2030 as AI primes demand.
Yet, transparency has not kept pace with growth. A leading operator managing 14 AI-ready data centres admitted to withdrawing 60 lakh kilolitres of water during 2023-24. Such disclosures remain the exception, not the rule. Most still publish broad sustainability commitments instead of real water consumption, making 'water-positive' or 'water-neutral' claims difficult to assess and verify. That is worrisome, because India's digital boom is unfolding in regions already facing severe water stress. Groundwater across urban and peri-urban centres is being extracted faster than it can recharge. Bengaluru has already experienced warnings over water security. A below-normal monsoon, forecast for 2026, will sharpen those concerns.
To be fair, data centres are not India's biggest consumers of freshwater. Coal-fired power plants use over ten times as much, while agriculture dwarfs them both. But that is not the point. An expanding and localized demand is being layered onto an already-stressed system. Much of the demand lies where farmers depend on the same aquifers, often with little visibility into how much water is actually being drawn.
Digital infrastructure may be invisible, but its environmental footprint is not.
Power Problem
Water is only half the story. Electricity may be the larger challenge. The data centre power demand is set to rise from about 1 GW today to 13.5 GW by 2031-32. By 2030, data centres could need as much electricity as an entire mid-sized state. By itself, that is not alarming. India has expanded renewable and conventional generation at record pace, and the grid has accommodated large industrial consumers before.
But data centres are unlike most industries. Steel plants or cement and textile mills can tolerate occasional fluctuations. Data centres cannot. They require uninterrupted quality power every second of every day. That means massive investments in renewable energy backed by storage or dependence on coal-fired baseload generation, an uncomfortable trade-off for a country pursuing ambitious climate goals.
There is another glitch. Hyperscale data centres can go online faster than the generation and transmission infrastructure needed to support them. The result is a mismatch: digital infrastructure can arrive in months while power plants take years. That gap deserves greater policy attention than it receives.
Learning from Others
India is not the first to confront this dilemma. Ireland offers perhaps the clearest warning. After courting global Cloud companies for years, Ireland saw data centres consume one-fifth of the country's electricity by 2023. The pressure on the grid became so acute that restrictions were imposed on new facilities around Dublin until network capacity could catch up. The lesson is not that Ireland built too many data centres. It is that it built them faster than the supporting infrastructure. The US has faced similar pressures.
India has the advantage of learning from them. Some states appear to be moving in that direction and operators are experimenting with liquid and closed-loop cooling tech that reduces water usage, even if they require higher upfront investment or greater electricity use. That is the kind of trade-off policymakers should encourage; solving tomorrow's problems before they become today's crises.
Planning the Invisible
None of this is an argument against data centres. They are a rational response to a digitising economy that processes more than 10,000 crore UPI transactions a year, stores billions of photographs and documents, and is racing to build the computing capacity that AI demands. The question is not whether India should build more data centres; it is whether it can build the water and power systems required.
Water and electricity cannot remain afterthoughts. They must become design elements from the moment projects are conceived, every bit as important as land or finance. That means requiring large facilities to disclose their water and energy use through standardised metrics, not sustainability claims. It means encouraging new campuses to locate beyond water-stressed urban clusters, while rewarding investment in technologies that reduce freshwater dependence. It means ensuring that long-term power contracts combine renewable generation with storage, so that the AI economy does not raise dependence on coal.
Above all, it means strengthening planning so that transmission lines, substations, water infrastructure and urban services arrive alongside digital infrastructure - not years later. The Cloud may feel weightless. It is anything but. Every search query, digital payment, streamed film and AI prompt passes through buildings filled with steel, concrete, transformers, fibre-optic cables, cooling systems and massive water reserves. The digital economy does not suspend the laws of physics; it simply hides them from view.
A Digital Tomorrow
India has every reason to be optimistic about its digital future. Few countries have built digital public infrastructure as quickly or at comparable scale. But optimism is not a substitute for planning. The countries that lead the next phase of the AI economy will not simply be those that build the most computing capacity. They will be those that build the physical infrastructure capable of sustaining it.
India's data centre boom is about more than servers. It is a test of whether it can match digital ambition with resource realism. Because in the end, the future of the cloud will depend not only on code, but on something far more tangible. Water. Power. And the foresight to build both before they are needed.
The writer can be reached on narayanrajeev2006@gmail.com. Views expressed are personal
The writer is a veteran journalist and communications specialist
Published by HT Digital Content Services with permission from Millennium Post.