Updated On: 03 December, 2025 09:52 AM IST | Mumbai | mid-day online correspondent
The project, with an estimated cost of Rs 8,056 crore and a completion period of 54 months, involves the design and construction of a nearly 10-km corridor, including around 7 km of underground road

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Tunnelling work for the ambitious 9.23-km underground road corridor linking Orange Gate on the Eastern Freeway to Marine Drive is set to begin today with the launch of a Tunnel Boring Machine (TBM), marking a major milestone for one of Mumbai’s most complex urban infrastructure projects.
The project, with an estimated cost of Rs 8,056 crore and a completion period of 54 months, involves the design and construction of a nearly 10-km corridor, including around 7 km of underground road. It aims to significantly enhance east-west connectivity, reduce travel time by 15–20 minutes, cut fuel consumption, and help lower air and noise pollution.