In a crucial step towards reducing pollution in the Yamuna river, the Delhi government has approved a ₹860 crore project to set up 12 decentralized sewage treatment plants (DSTPs) to clean the Najafgarh drain, which is one of the biggest polluters of the river. This initiative is expected to enhance sanitation infrastructure in 120 unauthorized colonies and 27 villages in Outer Delhi, while also addressing persistent waterlogging issues during the monsoon season. Delhi Water Minister Parvesh Sahib Singh emphasized that many localities are currently discharging untreated sewage into the drain, exacerbating pollution levels. The project will not only cover the construction of DSTPs but also their operation and maintenance for the next 15 years. A recent survey revealed that untreated sewage entering the drain has surged to 800 million gallons per day, with 250 million gallons originating from Haryana. The DSTPs will be funded through the Atal Mission for Rejuvenation and Urban Transformation (AMRUT) scheme, which aims to improve sewage systems in urban areas.