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.

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– TMRG