Kolkata Metropolitan Development Authority (KMDA) has invited online e-tenders for installation of chlorination units at rejuvenated Sewage Treatment Plants (STPs) in Kalyani, Kanaipur and North 24 Parganas, including five years of Operation & Maintenance under the Namami Gange Programme. Last Date for Online Bid Submission: 25 August 2026, 3:00 PM Contact Details: Superintending Engineer, North Circle, GAP Wing, WS Sector, KMDA Unnayan Bhavan, Block D, 1st Floor, Salt Lake City, Kolkata – 700091 Website: www.kmda.wb.gov.in Tender Portal: www.wbtenders.gov.in