According to a press release, of the total 21 km long underground tunnel section, 16 km between Sawli (Ghansoli) and Bandra Kurla Complex (BKC) in Mumbai will be constructed using Tunnel Boring Machines. The remaining 5 km section has already been completed using NATM.

Railway Minister Ashwini Vaishnaw will launch the first tunnel boring operation for India's inaugural bullet train project on Sunday. Two massive German-made tunnel boring…

According to a press release, of the total 21 km long underground tunnel section, 16 km between Sawli (Ghansoli) and Bandra Kurla Complex (BKC) in Mumbai will be constructed using…