The report, based on latest data from the ministry of urban development (2013), census 2011 and Central Pollution Control Board, estimates that 75-80% of water pollution by volume is from domestic sewerage, while untreated sewerage flowing into water bodies including rivers have almost doubled in recent years.
http://timesofindia.indiatimes.com/home/environment/pollution/80-of-Indi...
going on in india. i feel pollution will reduce in india.