Revamping and Five-Year Operation & Maintenance for Four Ahmedabad Effluent Treatment Plants

Work Description - Hiring Of Services For Operation And Maintenance Along With Revamping Of Four Nos Effluent Treatment Plants Of Ahmedabad Asfor A Period Of Five Years

Oil and Natural Gas Corporation Limited (ONGC), a distinguished Public Sector Undertaking, invites eligible bidders for an open tender (Reference Number: ZV8BC26003) for the comprehensive hiring of services related to the Operation and Maintenance, alongside revamping, of four Effluent Treatment Plants (ETPs) located at its Ahmedabad Asset. This critical "Works" project is envisaged for a duration of five years (1825 days). Interested parties can download tender documents starting from the e-publication date of June 11, 2026, at 05:00 PM. A pre-bid meeting to address queries will be conducted online via Zoom/MS Teams on June 23, 2026, at 11:00 AM, following a clarification window from June 12, 2026, 09:00 AM to June 21, 2026, 06:00 PM. Bid submission commences on July 10, 2026, at 09:00 AM, with the deadline for document download and bid submission set for August 17, 2026, at 03:00 PM. Bids, structured under a two-cover system (Technical and Finance), will be opened on August 18, 2026, at 03:30 PM. A mandatory Earnest Money Deposit (EMD) of ₹54,87,000 is required, payable through Bank Guarantee, NEFT, RTGS, or Insurance Surety Bond. For further details, the Tender Inviting Authority, CE (Electronics and telecommunications), can be contacted at Oil and Natural Gas Corporation Limited, Central Procurement Department, Core 4 8th Floor Scope Minar, Laxmi Nagar Delhi 110092.