Assam Professor Builds Rs 1 Filter That Detox 100 Litres Of Water

After learning of the life-threatening effects of "Arsenic" a naturally occurring material used in industries, Professor Robin Gupta from Assam dedicated his life to building a low coast solution that will benefit people. After years of hard work, he finally built a DIYFilter that detects the presence of metals in drinking water under just Rs 1.  This low-coast filter is now available in India, the USA, and Yemen.