Water as Exhaust: India Flags Off Its First Hydrogen Train on the Jind–Sonipat Line

On a summer morning at Jind railway station in Haryana, Prime Minister Narendra Modi flagged off a train that leaves nothing behind but water. India's first hydrogen-powered train, running on the 89-kilometre Jind–Sonipat section of the Northern Railway, marks the country's entry into a small club of nations operating trains fuelled by hydrogen — and, according to Indian Railways, does so with one of the largest and most powerful hydrogen trainsets yet built anywhere.

The Prime Minister framed the launch as both an environmental milestone and an industrial one, casting the indigenously developed trainset as a success of "Make in India" and a concrete step toward green mobility. Railways Minister Ashwini Vaishnaw and Haryana Chief Minister Nayab Singh Saini were present as the train — carrying schoolchildren invited to experience "green transport" — pulled out of the station.

The Train And The Route

The specifications set this project apart from the modest pilots seen elsewhere. Where other countries have generally run three- or four-coach hydrogen trains, India's version is a 10-coach trainset rated at around 3,200 horsepower — a scale that Railways officials say makes it among the highest-powered hydrogen train efforts in the world. It runs at a maximum operational speed of 75 km/h and can carry hundreds of passengers per trip.

On the Jind–Sonipat line, the train covers the 89-km stretch in roughly two hours with about 14 halts, and is designed to make two round trips a day — covering some 356 km and consuming an estimated 300 kg of hydrogen daily. It is a non-AC passenger service, deliberately positioned as everyday transport rather than a showcase novelty, with Northern Railway expected to confirm the start of full commercial operations.

How A Hydrogen Train Actually Works

The technology is elegant in principle. A hydrogen fuel-cell train carries tanks of compressed hydrogen and a stack of fuel cells. Inside each cell, hydrogen reacts with oxygen from the air in an electrochemical process that generates electricity directly — without combustion. That electricity drives the train's traction motors, often supported by onboard batteries that store energy and capture power during braking.

The genius, and the selling point, is the exhaust. The only by-product of the reaction is water vapour. There is no diesel smoke, no particulate matter, no carbon dioxide at the point of use. For a railway still running a large fleet of diesel locomotives on unelectrified track, a fuel that emits only water is a compelling proposition.

A fuel cell is not a battery that runs down, nor an engine that burns fuel — it is a quiet chemical generator that turns hydrogen into electricity and leaves behind nothing but water.

Hydrogen For Heritage

The Jind–Sonipat train is the pilot for a far larger ambition. Under its "Hydrogen for Heritage" programme, Indian Railways plans to deploy 35 hydrogen trains on heritage and hill routes across the country, at a programme cost running into the thousands of crores. Officials have cited an indicative figure of around Rs 80 crore per train, plus roughly Rs 70 crore of ground infrastructure per route, with the broader programme estimated at about Rs 2,800 crore.

The logic behind targeting heritage and hill lines is practical. Routes such as the Kalka–Shimla line or the Darjeeling Himalayan Railway are difficult, expensive or environmentally sensitive to electrify with overhead wires, and many wind through protected landscapes where preserving the historic character of the railway matters. Hydrogen offers a way to decarbonise these lines without stringing catenary through the hills. Railways has already signalled that the Kalka–Shimla heritage route is a candidate for hydrogen traction after lessons are drawn from the Jind–Sonipat pilot.

The Cost And Supply Challenge

For all the promise, hydrogen rail faces hard economics. Reports have put the cost of the first hydrogen train project well above that of a comparable conventional trainset — one estimate placed the pilot's price tag around Rs 112 crore — reflecting the expense of fuel cells, high-pressure hydrogen storage and bespoke engineering. The ground infrastructure to produce, store and dispense hydrogen at stations adds further cost.

Then there is the fuel itself. A hydrogen train is only as clean as the hydrogen it burns. If the hydrogen is produced from natural gas ("grey" hydrogen), the lifecycle emissions undercut the environmental case. The real prize is "green" hydrogen, produced by splitting water using renewable electricity — but green hydrogen remains costly and its supply chain in India is still nascent. Aligning the hydrogen train rollout with the National Green Hydrogen Mission, so that the trains run on genuinely clean fuel, is essential if the programme is to deliver the emissions savings it promises. India's stated Net Zero by 2070 goal is the backdrop against which these bets are being placed.

Where India Stands Globally

India is not first into hydrogen rail — Germany pioneered commercial hydrogen train services, and China and a handful of European operators have run their own trainsets. But India's entry is distinctive for its scale and ambition. By building a 10-coach, high-horsepower trainset domestically rather than importing a compact demonstrator, and by committing to a 35-train programme, India is positioning itself to become one of the world's larger hydrogen rail operators rather than a cautious late adopter. The indigenous development also feeds the "Make in India" industrial narrative, building domestic capability in fuel cells, hydrogen storage and systems integration.

Part Of A Wider Rail Modernisation

The hydrogen train arrived amid a broader burst of railway modernisation. In the same period, PM Modi inaugurated 75 redeveloped railway stations across 20 states under the Amrit Bharat Station Scheme, developed at a cost of around Rs 1,570 crore, alongside other rail and road projects. Taken together — station redevelopment, rapid electrification, semi-high-speed trains and now hydrogen traction — the moves sketch a picture of a railway attempting to modernise on several fronts at once, blending passenger-experience upgrades with a longer-term decarbonisation agenda.

The context of electrification matters to the hydrogen story. Over the past decade, Indian Railways has aggressively electrified its network, sharply reducing its dependence on imported diesel on the busiest trunk routes. But electrification is not always the answer. On lightly used branch lines, remote sections and heritage or hill routes where stringing overhead wires is costly, disruptive or environmentally intrusive, diesel has stubbornly persisted. Hydrogen is being positioned precisely to fill that gap — a zero-emission option for the parts of the network that electrification cannot economically reach. Seen this way, the Jind–Sonipat pilot is not a rival to electrification but its complement, aimed at the last stretches of the map where the wires do not go.

Why Hydrogen, And Why Now

The timing reflects a convergence of policy and technology. India has committed to reaching net zero emissions by 2070, and transport is a significant and hard-to-abate slice of the country's carbon footprint. The National Green Hydrogen Mission has made hydrogen a strategic priority, with the government betting that India can become a producer and exporter of green hydrogen rather than merely a consumer. A flagship hydrogen train serves that agenda on multiple levels: it decarbonises a visible public service, it creates domestic demand that can help scale up hydrogen production and storage, and it builds indigenous engineering expertise in fuel cells and high-pressure hydrogen systems that has applications well beyond the railways.

There are safety and operational questions to work through, as with any new energy carrier. Hydrogen is stored at very high pressure and is highly flammable, which demands rigorous protocols for refuelling, storage and handling, along with trained personnel and purpose-built ground infrastructure at stations. Range, refuelling time and the reliability of fuel-cell stacks in Indian operating conditions — dust, heat and humidity — are precisely the variables the Jind–Sonipat pilot is meant to test in real service before the technology is scaled to 35 trains.

By The Numbers

• 89 km — the Jind–Sonipat section on which the train runs, with about 14 halts.
• 10 coaches, ~3,200 hp — the trainset's size and power, among the largest hydrogen trains globally.
• 75 km/h — maximum operational speed; roughly a two-hour journey.
• ~300 kg — estimated daily hydrogen consumption across two round trips (~356 km).
• 35 trains, ~Rs 2,800 crore — the Hydrogen for Heritage programme's scope.
• 75 stations, Rs 1,570 crore — redeveloped under Amrit Bharat, inaugurated in the same window.

What Comes Next

The immediate test is operational: whether the Jind–Sonipat service runs reliably in day-to-day passenger use, and what lessons it yields on refuelling, maintenance and cost. Those learnings will shape the pace of the Hydrogen for Heritage rollout and decisions on routes like Kalka–Shimla.

The larger test is systemic. Hydrogen rail will only fulfil its green promise if India can produce affordable green hydrogen at scale and build the refuelling infrastructure to support a growing fleet. Get that right, and the trains that emit only water could become a signature of India's clean-energy transition. Get it wrong, and they risk being expensive symbols. For now, on a line in Haryana, the country has taken its first real step — and the exhaust, at least, is nothing but vapour.