Bullet train project: Second TBM begins work on India's first undersea rail tunnel beneath Thane creek

Updated On: 18 July, 2026 11:06 PM IST | Mumbai | mid-day online correspondent

The National High Speed Rail Corporation Limited (NHSRCL) has launched the second tunnel boring machine for the Mumbai-Ahmedabad bullet train project. The machine will excavate part of India's first undersea rail tunnel beneath Thane creek as work on the high-speed rail corridor gathers pace

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Work underway on the Mumbai-Ahmedabad bullet train project's tunnel beneath Thane creek. The tunnel includes a 7-km undersea section, which will be India's first undersea rail tunnel. FILE PIC

A second tunnel boring machine (TBM) on Saturday began excavation for the rail tunnel beneath Thane creek as part of the Mumbai-Ahmedabad bullet train project, officials told news agency PTI.

In a statement, the National High Speed Rail Corporation Limited (NHSRCL) said the TBM has started its drive from Sawli (Ghansoli) towards Vikhroli. Of the 10-km underground stretch, a crucial 7-km section will pass beneath the seabed at Thane creek, making it India's first undersea rail tunnel.