Question raised in Rajya Sabha on Industries polluting rivers, 14/03/2016. Central Pollution Control Board (CPCB) has reported that it has identified 764 Grossly Polluting Industries on Ganga river basin. The key industrial sectors contributing to pollution of river are Pulp and paper, Distillery, Sugar, Textile, Tannery, Thermal Power Plant, Food, Dairy & Beverage, Chemical, Slaughterhouse etc.