Arghyam is an Indian public charitable foundation set up by Rohini Nilekani, one of India's leading philanthropists and advocates on environmental issues. She is the wife of Infosys Technologies co-founder Nandan Nilekani and has committed at least $37.5 million to the organisation to date. [http://www.forbes.com/lists/2008/56/biz_philanthropy08_Rohini-Nilekani_WY3V.html]. The Arghyam Trust was founded in 2001 and has worked actively in the water sector since 2005.