This is a report from the Central Pollution Control Board  https://www.indiawaterportal.org/tt/wq/res/NWMP-2007.pdf (approx. 6 MB). Since the report extensively covers all parts of the country, we are soliciting comments and discussion about the results therein. If you have something to comment after going through the report, or parts of it that are of interest to you, we welcome your input in the comments section !