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Mumbai-Ahmedabad Bullet Train project: 350-tonne TBM cutterhead lowered at Vikhroli tunnel site
Updated On: 17 May, 2026 04:54 PM IST | Mumbai | mid-day online correspondent
Officials said two massive TBMs, each weighing more than 3,000 tonnes, are currently being assembled for the project. These machines will construct a 16-kilometre stretch of the 21-kilometre-long Mumbai tunnel
The tunnel includes a 7-kilometre undersea section beneath Thane Creek, which will become India’s first undersea rail tunnel. Pic/Special Arrangement
A major milestone was achieved in the Mumbai-Ahmedabad Bullet Train project after the first cutterhead of a Tunnel Boring Machine (TBM) was lowered at Vikhroli in Mumbai, officials said on Sunday.
An official statement said that the giant cutterhead, which weighs around 350 tonnes and has a diameter of 13.6 metres, marks the final stage in the primary assembly of the TBM’s main shield. The machine will be used for the construction of the underground section of the high-speed rail corridor.
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