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Thane-Borivli twin tunnel project gains pace as first TBM ‘Nayak’ set for launch
Updated On: 04 April, 2026 07:50 AM IST | Mumbai | Rajendra B. Aklekar
The first tunnel boring machine, Nayak, is locked and loaded under city, with drilling to begin on Monday on the 11.8-km Thane-Borivli twin tunnel that promises to slash travel time and break one of Mumbai’s worst choke points. Rajendra B Aklekar and Ranjeet Jadhav report

Tunnel boring machine ‘Nayak’ at the project site in Manpada, Thane. Pics/Ashish Raje
The Thane-Borivli twin tunnel project is set to gain momentum with the launch of its first Tunnel Boring Machine (TBM) ‘Nayak’ on Monday. The 11.84-km underground corridor is being implemented by Mumbai Metropolitan Region Development Authority (MMRDA)and executed by Megha Engineering & Infrastructures Ltd. mid-day got an exclusive look at the preparations on site.
Team behind TBMs ‘Arjuna’ and ‘Nayak’, which are being launched in phases at Manpada, Thane, on Friday

