Question raised in Lok Sabha on Sewage Treatment Plants, 26/07/2016. As per the report published by Central Pollution Control Board (CPCB) in March, 2015, the sewage generation from urban areas in the country is estimated at 61,948 million litres per day (mld), whereas the total sewage treatment capacity available is only 23,277 mld, or 37% of the sewage generation. The State-wise details of sewage generation from urban areas and corresponding treatment capacity available are at Annexure.