Delhi Government opens a wastewater treatment plant at the Coronation Pillar site in North Delhi. It is a significant step towards cleaning the Yamuna river. The plant has a capacity of treating 31.8 crore litres of wastewater every day, and the. Besides this, the plant would also treat sewage generated from unauthorised colonies like Saroop Nagar, Bhalswa, Sant Nagar, and the Wazirabad group. Contact: Delhi Government E-mail: kumar.krishan85@gov.in Tel: 011-23392311 Website: www.portal.delhi.gov.in