The Executive Engineer (R&B), New Town Kolkata Development Authority (NKDA) invites online tenders for a two-year contract covering the operation and maintenance of swimming pool pumping machineries, including the supply of chemicals at NTBC, AE Block, Action Area-IA, New Town Kolkata. Bidders must submit online proposals by July 24, 2026, before 11:00 AM, with detailed terms accessible on the official websites http://wbtenders.gov.in and www.nkdamar.org.