Transformer Repair and Rewinding Services for Mine Lighting and Infrastructure

Central Coalfields Limited, through its Project Engineer (ENM) at Ashok OCP, Piparwar Area, Chatra, Jharkhand, is inviting bids for a critical works tender (Tender Reference Number: PO(AK)/PE(EnM)/e-NIT/26-27/34). This open tender specifically concerns the essential repair and rewinding of transformers. The scope of work includes the rehabilitation of one 250 KVA, 3.3 KV/440V transformer, Make- Marsan Electricals, Serial Number 24584, currently installed in Sidalu village. Additionally, the tender covers the repair and rewinding of two 10 KVA, 3.3 KV/230 V transformers, which are deployed across various locations within the mine for mine lighting purposes under the Ask OCP PPR Area. This project falls under the Electrical and Maintenance Works product category, and the EMD required for participation is 3,700. Interested parties are advised that documents can be downloaded from October 29, 2026, 09:00 AM, with the download period concluding on November 09, 2026, 09:00 AM. Bid submissions are also open from October 29, 2026, 09:00 AM, and must be completed by the submission deadline of November 09, 2026, 09:00 AM. The official e-publication date for this tender is October 28, 2026, 05:00 PM, and the bid opening will take place on November 10, 2026, 09:00 AM. The work is to be executed within the Ashok OCP Piparwar Area, Chatra, Jharkhand.