Woman at water ATM
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Water ATMs bring clean water to Delhi

25 July 2014 Last updated at 00:20 BST

The authorities in the Indian city of Delhi are piloting a scheme to bring clean drinking water to the city's residents.

Known locally as water ATMs, the water dispensers use pre-paid smart cards and allow people to fill containers with water for a small fee.

The pilot has proved so successful that the city government is now looking to expand it.

Nitin Srivastava went to find out more.