Alstom commences manufacturing of Rolling Stock Trains for Chennai Metro corridors 3 and 5

Chennai, India (Rail & Metro Today): Chennai Metro Rail Limited (CMRL) has achieved two significant milestones in its Phase-2 rolling stock programme, with manufacturing commencing for trains planned for Corridors 3 and 5 and the 36th and final trainset for Corridor 4 flagged off on October 29, 2026.

The developments mark progress under two major rolling stock contracts, ARE04A and ARE03A, respectively, and highlight CMRL's efforts to advance train procurement alongside the construction of Chennai Metro's expanding network.

The milestones are particularly important for Phase 2, which is being developed to extend metro connectivity across several key residential, commercial and employment centres in the city.

Train Manufacturing Begins for Corridors 3 and 5

Under the ARE04A contract, CMRL has commenced manufacturing of rolling stock intended for the upcoming Corridors 3 and 5. The start of production marks an important transition from procurement and design activities to the manufacturing and eventual delivery of trainsets required for the new metro routes.

Rolling stock is a critical element of metro infrastructure, directly influencing passenger capacity, service frequency, operational reliability and overall travel experience. The timely production and delivery of trains will therefore be essential to coordinating the commissioning of the upcoming corridors with the readiness of their civil works, signalling and other systems.

Final Trainset for Corridor 4 Flagged Off

In another major development, CMRL flagged off the 36th and final trainset under the ARE03A contract for Corridor 4.

The completion of the flag-off process for all 36 trainsets represents an important milestone in the corridor's rolling stock procurement programme. It also reflects progress in delivering the train fleet required to support metro operations and the planned expansion of services.

Together, the two developments demonstrate progress across different stages of Chennai Metro's rolling stock programme, with manufacturing advancing for future corridors and the final trainset dispatched under the Corridor-4 contract.

CMRL Managing Director Leads Milestone Event

The event was led by Ashish Chatterjee, IAS, Managing Director of Chennai Metro Rail Limited, in the presence of senior CMRL officials and representatives of General Consultant (GC-2).

Those present included Manoj Goyal, IRSEE, Director (Systems & Operations), CMRL, and Koribilli Mani Venkata Kumar, Chief General Manager (Signal & Telecom and Rolling Stock), along with other senior officials from CMRL and GC-2.

The participation of senior management and technical representatives highlighted the importance of coordinated procurement, manufacturing and delivery activities in the implementation of the metro's Phase-2 programme.

Rolling Stock Programme Supports Chennai Metro Expansion

The latest milestones underline the importance of rolling stock procurement in the timely delivery of large-scale metro rail projects. Train manufacturing, testing, inspection and delivery must progress in coordination with infrastructure construction and the installation of railway systems to ensure that new corridors are ready for passenger operations.

For Chennai, the continued advancement of the rolling stock programme will be essential to expanding network capacity and providing reliable public transport to a growing urban population.

With manufacturing now underway for Corridors 3 and 5 and all 36 trainsets flagged off under the Corridor-4 contract, CMRL has recorded progress across two important procurement packages. The next stages will involve completing production, testing and delivery activities, followed by the necessary integration and commissioning processes.