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Mumbai is preparing for its first underground railway line as part of Phase 2 of the Central Railway鈥檚 suburban network expansion. The proposed 7.4 km corridor will run from Parel to Chhatrapati Shivaji Maharaj Terminus (CSMT), with an estimated cost of Rs 30 Bn. This underground approach is being considered to overcome challenges related to land acquisition and resettlement.

Phase 1 of the project, a 10.1 km line from Kurla to Parel, is already under development. For Phase 2, tunnelling at a depth of 20 to 25 m below existing railway tracks is proposed. This would avoid interference with buildings, roads, and underground utilities, which typically delay overland projects.

The Mumbai Rail Vikas Corporation (MRVC) and Central Railway are working together to determine technical feasibility and will soon appoint a consultant. Entry and exit points for tunnel boring machines are being evaluated at both Parel and CSMT.

Two CSMT locations are under consideration: one inside the terminus next to suburban or long-distance platforms, and another near P D'Mello Road. Officials must also factor in existing and planned metro infrastructure, including Metro 3 and Metro 11 corridors.

Source:Hindustan Times