A special 50-wagon train carrying 2.5 million litres of water arrived in the Indian city of Chennai Friday, as the southern hub reels under one of its worst shortages in decades.
The wagons were hauled by a special locomotive, decorated with flowers and with a "Drinking Water for Chennai" banner on its front.
Four special trains a day have been called up to bring water to Chennai—India's sixth most populous city—from Vellore, some 80 miles (125 kilometres) away, to help battle the drought.
The first consignment will be taken to a water treatment centre, and then distributed in trucks to different parts of the metropolis on Saturday.
Chennai has seen only a fraction of the rain it usually receives during June and July.
The city of 4.9 million people also needed trains to bring water in when it suffered a similar crisis in 2001.
The bustling capital of Tamil Nadu state normally requires at least 825 million litres of water a day, but authorities are currently only able to supply 60 percent of that.
With temperatures regularly hitting 40 degrees Celsius (104 Fahrenheit), reservoirs have run dry and other water sources are dwindling further each day.
The Chennai metro has turned off its air conditioning, farmers have been forced to stop watering their crops, and offices have asked staff to work from home.
© 2019 AFP