Question raised in Lok Sabha on Management of Sewage, 24/02/2016. The quantum of sewage generated from Class - I Cities and Class - II Towns is 38254.82 million litres per day (MLD) out of which only 11787.38 MLD (31%) is being treated and the remaining 26467.44 MLD is disposed into the water bodies without any treatment. The city wise details at Annexure-I. The various technologies being used in sewage treatment plants are Activated Sludge Process (ASP), Membrane Bio Reactor (MBR), Sequential Batch Reactor (SBR), Oxidation, Anaerobic Digesters etc.