The circular economy concept has been introduced by the Hyderabad Metropolitan Water Supply and Sewerage Board (HMWSSB). It will be applied for the sale of sludge, methane gas and plastic waste received from sewage treatment plants (STPs) through their conversion to value-added products, and reuse of the treated water. HMWSSB plans to generate revenue by executing this concept. The installation of screw turbines for the generation of hydel power has also been planned. Further, a Circular Economy Cell will be set up in the office of HMWSSB at Khairatabad in Hyderabad, which will focus on the implementation of these plans. Currently, Hyderabad has 20 STPs with a total capacity of 714.3 mld, with an additional 31 STPs are coming up in the Greater Hyderabad limits. The 20 STPs generate around 70 tonnes of sludge, which is provided to the private agencies at Rs 560 per metric tonne.