The Maharashtra Cabinet Committee on Infrastructure, chaired by Chief Minister Devendra Fadnavis, on Tuesday, 27 October 2026, approved the ₹13,856.37 crore Mumbai Metro Line 12-A — an 18.40 km fully elevated corridor linking Manpada–Katai Naka to Taloja via Kalyan Phata. The Cabinet directed authorities to complete the project within three and a half years, with the Mumbai Metropolitan Region Development Authority (MMRDA) designated as the implementing agency.

Project Scope and Infrastructure

The corridor will feature 12 elevated stations along its 18.40 km stretch. The alignment incorporates a 6.93 km four-lane integrated flyover and an 8.69 km six-lane integrated flyover, making it one of the more engineering-intensive metro proposals in the Mumbai Metropolitan Region (MMR). The government has also declared MMRDA the Special Planning Authority (SPA) for the project's influence zone, enabling streamlined land acquisition and development approvals.

Multimodal Connectivity and Interchange Points

Metro Line 12-A has been designed as a strategic connector between the industrial belts of Kalyan-Dombivli and Navi Mumbai. At Katai Naka, it will interchange with Metro Line 12 and with feeder routes for the Mumbai–Ahmedabad Bullet Train corridor. Between Katai Naka and Kalyan Phata, it will connect to Metro Line 14, while Amandoot station will serve as an interchange node with Navi Mumbai Metro Line 1. Feeder bus services are planned at all 12 stations to address last-mile connectivity gaps.

Expected Impact: Commuters, Environment and Economy

The project is projected to draw a daily ridership of 4,74,000 commuters once operational. According to MMRDA Metropolitan Commissioner Dr Sanjay Mukherjee, the modal shift from private vehicles to rapid transit will ease congestion on national highways and meaningfully reduce carbon dioxide (CO₂) emissions. Commute times on the corridor are expected to fall by 40% to 50% compared with existing road travel. The project is additionally intended to catalyse economic and industrial development across the broader Thane–Navi Mumbai region.

Funding and Land Transfer Mechanism

Selected government-owned lands within the project influence zone are to be transferred to MMRDA to support project financing and development. This land-value-capture approach has been used in earlier metro phases across Mumbai as a way to partially offset capital outlays without proportionate increases in state budgetary allocation.

Fadnavis Pushes State-Wide Metro Acceleration

Chief Minister Fadnavis also directed officials to fast-track all ongoing metro construction work across Maharashtra to meet committed deadlines — a signal that the administration intends to hold line agencies accountable across the metro portfolio, not just on Line 12-A. With Mumbai's metro network expanding rapidly, the three-and-a-half-year target for this corridor will be closely watched as a benchmark for execution credibility.