India, Sept. 20 -- The Mumbai Ahmedabad bullet train project saw a major breakthrough on the 4.88 km-long tunnel between Shilphata and Ghansoli. The breakthrough was achieved on Saturday morning, the National High Speed Rail Corporation Limited (NHSRCL) said.

Union railway minister Ashwini Vaishnaw was present at the Ghansoli shaft when this breakthrough was achieved by way of a controlled blast, news agency PTI reported. The tunnel is a part of the 21-km underground stretch between the Bandra-Kurla Complex (BKC) and Shilphata, including a seven-km segment beneath Thane Creek. It was excavated using the New Austrian Tunnel Method (NATM).

With this latest development, the bullet train tunnel now connects the Savali shaft to the tunnel po...