With This Low-Cost Arsenic Water Filter, an IIT Kharagpur Professor Wants to Helps Lakhs of Indians Aishhwariya Subramanian
This Water Purifier Provides Arsenic Free Water at Just 5 Paise a Litre: IIT-M’s Gift to the Nation Tanaya Singh
When Arsenic Poisoned Its Water Sources, This Village Resorted To An Ancient Solution – And Won! India Water Portal
