KOLKATA (Metro Rail News): Metro Railway Kolkata has invited bids for a major infrastructure modernization project valued at ₹345.76 crore for replacement and upgrade of equipment at 750 V DC traction substations, including third rail and power cables, along with upgrade of 11 KV auxiliary substations to 33 KV auxiliary substations in Phase 1.
The tender, published on February 20, 2026, follows an open tender system under a two-package system and requires completion within 36 months from the start date.
Tender summary
| Tender number | ELM_131R_PSWORK_Dt19-2-26 |
| Worth | 345.76 crores |
| Security deposit | 1 million rupees |
| Bidding document cost | Null |
| Completion period | 36 months |
| Bid submission period | March 6 to 20, 2026 (until 11:00 a.m.) |
| Pre-offer meeting | February 27, 2026 at 12:00 p.m. |
| Validity of the offer | 90 days from bid closing date |
| inviting authority | Chief Electrical Engineer/Headquarters, Metro Railway Kolkata |
Project Scope
Replacement and Upgrade of 750 V DC Traction Substation Equipment, including Third Rail, Power Cable with Upgrade from 11 KV Auxiliary Substation to 33 KV Auxiliary Substation (Phase 1).
Strategic importance
The comprehensive modernization project represents a critical infrastructure upgrade for the Kolkata Metro, India’s oldest metro system. Replacing aging electrical infrastructure with modern 33 kV systems will improve power supply reliability, operational efficiency and security across the network.
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