L&T – Alstom Win Mumbai Metro Line 4’s Rolling Stock & Signaling Contract CA-234

Larsen & Toubro (L&T) on Friday was declared as the lowest bidder to supply five major critical systems for Mumbai Metro’s 35.2 km Line-4 & Line-4A (Green Line) connecting Wadala – Kasarvadavali – Gaimukh, per my reliable sources.

This contract for Line-4’s major systems under Package CA-234 includes supplying rolling stock (39 trains consisting of 6 coaches for a total of 234 coaches), CBTC signaling & train control (S&T), telecommunication, platform screen doors (PSDs), and depot machinery & plant (M&P) for Mogharpada Depot.

L&T partnered up with Alstom Transport for the rolling stock and signaling solution, while their partners for the other relatively smaller-value components remain unknown to me.

This long pending development comes exactly 3 years after Alstom Transport, the winner of Line-4’s rolling stock contract MRS2 and signaling contract CA72, had pulled out of the project in 2022 due to overall poor civil construction progress, especially the line’s train depot whose location hadn’t been finalized at that time.

MMRDA had re-invited bids in February 2024 with a Rs. 4297.49 crore estimate and 2+17 year contract period. Technical bids were opened in November 2024 to reveal two bidders – Larsen & Toubro, and NCC who I hear partnered up with BEML for the rolling stock component of the contract.

If someone reading this has bid values, then leave a comment below or shoot me a message via the Contact page. I’d like to add it in here for record keeping and everyone’s awareness.

Germany’s KfW will fund the design and build component of this contract spanning 168 weeks (3.22 years) through a EUR 545 million loan. MMRDA will fund the comprehensive maintenance component of 17 years which includes 2 years of Defects Liability Maintenance Period (DLP).

MMRDA’s Brief Scope: Design, Manufacture, Supply, Installation, Integration, Testing and Commissioning of Rolling Stock, Communication Based Signaling & Train Control, Telecommunication, Platform Screen Doors Systems and Depot Machinery & Plant including 15 Years of Comprehensive Maintenance After 2 Years of Defect Liability Maintenance Period of Line 4 and Extension Corridor (4A) [Wadala – Kasarvadavali – Gaimukh] of Mumbai Metro Rail Project of MMRDA

L&T’s bid value remains unknown, so I can’t provide an assessment on how it’s placed compared to MMRDA’s estimate. We’ll have to wait and see how this plays out.

Per the tender’s schedule, which I think is highly aggressive, the first prototype train has to be delivered at week 52 (1 year) after contract signing, the next 9 trains at week 70, the next 10 trains at week 88, the next 10 trains at week 104 (2 years), and the final 9 trains at week 112.

Per the tender documents, MMRDA expects their independent safety assessor (ISA) and Commissioner of Metro Rail Safety  (CMRS) to certify the line’s Phase 1 with 20 train-sets fit for revenue operations in August 2026. This timeframe is now unattainable as too much time has already been lost in the tendering process and the manufacturing process will follow its own due course.

A list of Mumbai Metro Green Line’s packages (civil & systems) and their status can be viewed here.

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– TMRG