India's first undersea rail tunnel has moved a step closer to reality, with a giant Tunnel Boring Machine (TBM) beginning its journey beneath Thane Creek on Saturday for the Mumbai–Ahmedabad Bullet Train Project.

A second tunnel boring machine has begun excavating for the rail tunnel under Thane Creek. This critical section will be the country's first undersea tunnel for any rail corridor.…

India's first undersea rail tunnel has moved a step closer to reality, with a giant Tunnel Boring Machine (TBM) beginning its journey beneath Thane Creek on Saturday for the…