- Solar panels on the roof of train to reduce carbon footprint
- The train has begun journeys around New Delhi
- Each train is expected to save around 21,000 litres of diesel every year
The lighting, fans and information displays inside the train -- once powered by diesel -- will run off the sun's energy after the panels were fitted to the carriage.
The train has begun journeys around New Delhi, helping move just some of the 23 million passengers who use India's rail network every day.
"We will be inducting at least four other solar-powered trains in the next six months," Anil Kumar Saxena, Railways spokesperson, told AFP on Wednesday.
India's railway system is one of the world's largest and is still the main means of long-distance travel in the huge country.
But years of financial neglect and a populist policy of subsidising fares have hit the network hard. Prime Minister Narendra Modi vowed to revive it after coming to power in May 2014.
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