The expansion initiative comes as the East-West Metro is set to receive 11 more six-car rakes within the next two years, potentially increasing the total fleet to 25. Scheduled between June and August, three new rakes manufactured by Bengaluru-based PSU BEML are poised to join the existing fleet of 14. A railway official disclosed that the expansion plans have been submitted for approval, with cost implications currently under evaluation.

Proposed enhancements include laying six additional tracks or stabling lines to facilitate the storage of six additional rakes. A suitable location within the 38.5-acre facility at Central Park has been identified for the expansion, aimed at meeting the growing demand for metro services as the network expands. The East-West Metro, currently operating across two disjointed stretches, is poised for integration into a unified 16.6 km corridor, necessitating increased fleet capacity to maintain operational efficiency.

KMRC's collaboration with BEML has been instrumental in augmenting the metro fleet. The initial agreement saw the procurement of 14 rakes for Rs 9 billion, with the first rake arriving in the depot in April 2018. The completion of the 14th rake delivery in July 2020 marked a milestone in the partnership. BEML CMD Shantanu Roy affirmed the commitment to deliver three additional rakes within the stipulated timeframe, emphasizing the necessity for further acquisitions to optimize system performance.

The maintenance depot, comprising the main workshop and central control unit, plays a pivotal role in the metro's operational efficiency. Equipped with facilities for undergear inspection, maintenance pits, and major repair workshops, it ensures the seamless operation of the metro fleet. The depot, which commenced construction in 2011 and concluded in January 2018, boasts modern amenities such as an automatic train washing plant and a green stabling yard designed to maximize energy efficiency and environmental sustainability.

As Kolkata Metro continues to evolve and expand its footprint, the ongoing infrastructure enhancements underscore its commitment to providing efficient and sustainable transportation solutions for the city's residents.