Mumbai-Ahmedabad Bullet Train: Work Begins on Key 16-km Tunnel Section Using TBMs

New Delhi | April 10, 2026

A significant milestone has been achieved in the ambitious Mumbai-Ahmedabad Bullet Train Project, as work has commenced to lower and assemble Tunnel Boring Machines (TBMs) for constructing a crucial 16-kilometre tunnel section between Bandra Kurla Complex (BKC) and Sawli, near Ghansoli.

According to project officials, a total 21-kilometre-long tunnel is being developed between BKC and Shilphata as part of the high-speed rail corridor. Notably, this stretch includes India’s first-ever 7-kilometre undersea tunnel, which will pass beneath the Thane Creek, marking a major engineering achievement.

Out of the total tunnel length, approximately 5 kilometres have already been completed using the New Austrian Tunnelling Method (NATM). The remaining 16 kilometres will now be constructed using advanced TBM technology to ensure precision and efficiency in execution.

The project is expected to significantly enhance connectivity between Mumbai and Ahmedabad, reducing travel time and boosting economic integration between the two major cities.

This development highlights India’s growing capabilities in modern infrastructure and engineering, particularly in the field of high-speed rail networks.

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