Overview
- NHSRCL announced on Tuesday that engineers finished the MT-07 breakthrough at Ambesari village in Palghar, closing the 417-metre tunnel that is 14–14.4 metres wide.
- The MT-07 excavation was carried out from both ends using controlled drilling-and-blasting and finished the three mountain tunnels between Vapi and Boisar.
- Project teams used real-time geotechnical monitoring—Surface Settlement Points, 3D targets, strain gauges and seismographs—and safety measures such as ventilation and controlled access during work.
- The Vapi–Boisar tunnels pass through a dense industrial belt, so their completion secures a critical stretch of the 508 km corridor that is being built with Japanese Shinkansen technology.
- Officials say Gujarat showed about 68.2% physical progress and Maharashtra about 40.7% as of March 2026, the Surat–Bilimora section is targeted for August 15, 2027, and the full corridor is scheduled for December 2029.