ITD Cem Wins Kolkata Metro Birati Extension’s Underground Contract
ITD Cementation on Tuesday was declared as the lowest bidder for the civil construction contract of 6.87 km Kolkata Metro Line-4’s underground extension from Biman Bandar (Kolkata Airport) to Birati.
This contract is part of the Metro Yellow Line’s 11.26 km extension to Barasat in north-east Kolkata. Its scope includes construction of a 3.59 km metro tunnel, one underground metro station building at Birati, and subway work for Birati and Michael Nagar stations.
The metro tunnel along Kolkata Airport’s boundary wall will be constructed by RCC box pushing method (no tunnel boring machines (TBMs) will be deployed), while Birati station will be constructed using the cut & cover method.
Metro Railway Kolkata had invited bids for this contract in August 2024 with a Rs. 1330.47 crore estimate and 910 day (2.5 year) deadline.
Financial Results
| 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 |
Tender No: EPC-2489-2024
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
ITD Cem’s bid of Rs. 1097.23 was 17.55% lower than Kolkata Metro’s Rs. 1330.47 crore estimate, so a contract should be awarded in the coming months following approvals from Railway officials.
Interestingly, the this contract’s scope also includes all systems work within the 3.59 km tunnel – from track to E&M to tunnel ventilation to 750 V DC Third Rail installation works. Typically those are part of multiple separate packages.
As shared in the past, this is a contract re-tender. Back in March 2022, Senbo Engineering was declared as the lowest bidder for this section’s 2 underground civil packages.
For more updates, check out the Kolkata Metro section or my Home Page! Sign up for free instant email notifications on new posts over here. Like this post? Get early-access to updates and support the site over here.
– TMRG
Gontry operator
Good to have you back with updates!
Again, tender going to the lowest bidder that too at 17% approx. lower than bidding cost. It’s just non-understandable to me that how the Contractor shall be delivering the quality works at this much cost…!!