KOLKATA (Metro Rail News): ITD Cementation has been declared as the lowest bidder for the civil construction contract of Kolkata Metro Line-4’s underground extension, which spans 6.87 km between Biman Bandar (Kolkata Airport) and Birati.
Metro Railway Kolkata floated tender for this contract in August 2024 with a Rs. 1330.47 crore estimate and 910 day (2.5-year) deadline. This contract is part of the Kolkata Metro’s Yellow Line extension, which spans 11.26 km to Barasat in north-east Kolkata.
Tender No: EPC-2489-2024
Financial Bid Values
| Firm | Bid (Rs. Crore) |
| ITD Cementation India | 1097.23 |
| Ceigall India (CIL) | 1193.66 |
| IRCON | 1256.59 |
| Dhaya Maju | 1260.00 |
| RNC | 1286.08 |
| RVNL | 1310.53 |
| Kalpataru Projects (KPIL) | 1311.20 |
| DRA Infracon (DRAIPL) | 1337.52 |
| Patel Engineering | 1483.37 |
| Afcons Infrastructure | 1575.73 |
The awarded contractor will be responsible for the construction of a 3.59 km metro tunnel, one underground metro station building at Birati, and subway work for Birati and Michael Nagar stations..
Brief Scope: Design, Procurement & Construction of RCC Box Metro tunnel including Birati UG Station Building & Subways (with Entry-Exit Structures) for two underground Metro Stations (Birati & Michael Nagar) by Cut & Cover Method (Top Down with Diaphragm Wall/ Bottom Up Method with support arrangement) including architectural finishing, firefighting, water supply, sanitary installation, drainage & BLT works, E&M service, ECS service, TVS services, power supply system with 750 V DC traction system including composite aluminium Third Rail from Ch: 6.250 Km to Ch: 9.840 Km including all ancillary works in connection with extension of Metro Railway from Noapara to Barasat via Bimanbandar.
The construction of the metro tunnel adjacent to the Kolkata Airport’s boundary wall will employ the RCC box pushing method without the deployment of tunnel boring machines (TBMs), while the Birati station will be constructed utilising the cut and cover methodology.
The scope of this contract also encompasses all system-related work within the 3.59 km tunnel, including track installation, E&M services, tunnel ventilation, and 750 V DC third rail installation, which are typically distributed across multiple separate packages.
