For 10 years the government promised the remote Indian village of Sajan Khar its own well, and for 10 years the villagers struggled with the same four-mile trek to fetch drinking water for themselves and their animals.
Then early this year, Hem Singh Markam used a cell phone to call for help. And 15 days later, two hand-pump wells were delivered.
It is the latest example of what happens when indigenous, tribal communities are able to make their voices heard.