Silkyara

Dix, who heads an international consortium of experts in tunnelling, is in Silkyara to offer advice.

Earlier in the day, Chris Cooper, a microtunneling expert, arrived at the Silkyara tunnel incident site to monitor the rescue operation.

Locals offer prayers during the ongoing rescue operation of the 41 workers trapped inside the under-construction Silkyara Bend-Barkot Tunnel, in Uttarkashi district on Tuesday.

The 4531-metre Silkyara Tunnel is part of the Chardham Project of the Ministry of Road Transport and Highways and will link the Gangotri and Yamunotri axis under the Radi Pass area.

This company was also contracted to build the Silkyara Tunnel in Uttarakhand that collapsed last year.