India, May 13 -- The Delhi Jal Board (DJB) is working on developing 12 new sewage treatment plants in the Capital with the aim to reduce untreated sewage being dumped from the Najafgarh drain into the Yamuna river, officials said. The DJB has started work on a 49.5 mld (million litres per day) capacity wastewater treatment plant in southwest Delhi's Chhawla along with 11 units of smaller de-centralised STPs (DSTPs) and pumping stations.

A senior DJB official said the bids for the project have been invited. "Yamuna cannot be cleaned unless the Najafgarh drain is cleaned first. A series of DSTPs is to be developed to treat wastewater and Najafgarh basin is being prioritised. First set of bids for development of treatment plants for this ba...