Priya Das

""My professor said my idea was too simple to matter. Five hundred villages later, I think simplicity was the whole point.""

Priya built a low-cost water purification device from locally available materials during her final year at NIT Rourkela. Her professor gave her a C. She went on to deploy it across 500 villages in Odisha and Jharkhand.

— Priya Das · Rourkela, Odisha