Electrical Transformer Repair, Rewinding, and Switchgear Maintenance at Kuju Colliery

Central Coalfields Limited, a Public Sector Undertaking, invites sealed bids from eligible contractors for a comprehensive electrical maintenance and repair project at the GM Unit, Kuju. This Open Tender, with Tender ID 2026_CCL_366367_1 and Tender Reference Number GM (K)/EnM/eTender/26-27/98, encompasses three key work areas: (A) the complete repairing and rewinding of a 500KVA, 3.3KV/440V Marson transformer (S.No. 12991), (B) the repairing, maintenance, and oil filtration of transformers installed at various locations within Kuju Colliery, and (C) the repairing of 3.3KV VCB/OCB at different sites within the Kuju Colliery. The contract will be based on an Item Rate Form of Contract, with a completion period of 25 days. A Bid Security Deposit (EMD) of ₹37,500 is required, payable online. Bidders are advised to note the critical dates: document download and bid submission commence on September 29, 2026, at 06:55 PM, with the bid submission deadline on October 9, 2026, at 06:55 PM. The bid opening will take place on October 10, 2026, at 11:00 AM at the GM Unit, Kuju. This tender is a two-cover system, with Cover 1 containing NIT documents and Cover 2 containing the Bill of Quantities (BOQ). Potential bidders can download the tender documents from September 29, 2026, to October 9, 2026, at 06:55 PM. The bid validity period is 120 days.