Transformer Refurbishment and Upgrade Services at Nakrakonda Kumardihi B Colliery

Eastern Coalfields Limited, through the Office of The General Manager Bankola Area, is inviting bids for a critical electrical works tender, reference number ECL/GM/BA/E TENDER/26-27/ENM/105 Dt 07.11.2026. This open tender, categorized under Works and specifically for Electrical and Maintenance Works at Nakrakonda Kumardihi B Colliery, focuses on the comprehensive dismantling, shifting, installation, oil filtration, gasket change, and stud change of one 3MVA, 33KV-3.3KV transformer and one 1 MVA transformer. Furthermore, the scope includes the supply and installation of WTI (Windings Temperature Indicator) and OTI (Oil Temperature Indicator) for the 3MVA, 33KV-3.3KV transformer at Nakrakonda-Kuma. The tender documents are available for download from 07-Nov-2026 02:00 PM, with the submission deadline set for 17-Nov-2026 02:00 PM. Bids will be opened on 18-Nov-2026 02:00 PM. A bid security deposit (EMD) of ₹9,700 is required for participation.