Google Map Image of Metro 4 - Wadala to Kasarvadavali
Google Map Image of Metro 4 route

The 32-km Metro 4 project that will connect Mumbai to Thane has been approved by Maharashtra Chief Minister Devendra Fadnavis.

The metro corridor, which stretches from Wadala to Kasarvadavali via Ghatkopar and Thane, was approved in the 140th Authority Meeting of Mumbai Metropolitan Regional Development Authority (MMRDA).

The Detailed Project Report (DPR) prepared by the Delhi Metro Rail Corporation (DMRC) estimates the completion cost to be around Rs. 14, 549 crore. However, a detailed synopsis of the project released by MMRDA pegs the completion cost at Rs. 19, 097 crore.

According to the synopsis, the metro will cover 32 stations with a 25-hectare car depot planned in Owale and a 16-hectare one in Ghatkopar. According to the official press release, the car depot in Owale spans around 30 hectares.

The project aims to reduce the use of private vehicles and autorickshaws, which can subsequently ease congestion on roads. It also targets to bring down noise and air pollution by facilitating a "comfortable, speedy and air-conditioned journey."

The project, which is expected to be complete by 2021, has been proposed to the state government for approval.