Mumbai, Sept. 20 -- Railway minister Ashwini Vaishnaw on Saturday interacted with workers building the Mumbai-Ahmedabad bullet train tunnels, congratulating them for the breakthrough with the New Austrian Tunnelling Method (NATM).

The union minister was seen shaking hands with the workers, as they held national flags and celebrated the breakthrough.

"Today, an important milestone has been achieved in the Mumbai-Ahmedabad bullet train project. An undersea tunnel is being constructed beneath the creek between Mumbai and Thane," Minister Vaishnaw told ANI.

He further said that a Japanese team also visited the site on Friday, and that over 320 kilometers of viaducts, or the bridge portion have been completed.

"This is a very important mil...