Uttarakhand Additional Chief Secretary Radha Raturi reached the disaster control room at the secretariat on Friday to assess the ongoing rescue operation at the Silkyara tunnel collapse site.
The International Tunnelling and Underground Space Association offered assistance to the Indian rescue team as 40 labourers remain stranded due to a tunnel collapse in Uttarkashi.
Relief and rescue operations are underway for the sixth day on a war footing at Silkyara Tunnel, where 40 labourers were trapped following the collapse of the under-construction tunnel.
Meanwhile, protests broke on Wednesday outside the Silkyara-Barkot tunnel in Uttarakhand's Uttarkashi as workers protested over the delay in rescuing 40 labourers who have been trapped inside after a portion of the under-construction tunnel collapsed on Sunday.
A portion of an under-construction tunnel between Silkyara and Dandalgaon on the Brahmakhal-Yamunotri national highway collapsed in the early hours of November 12, entrapping 40 labourers.
Chief Minister Pushkar Singh Dhami on Tuesday reviewed the status of relief and rescue operations with senior officials at his residence to save 40 people trapped in Silkyara tunnel located on Uttarkashi-Yamnotri road.
According to authorities, a platform is being prepared for an auger machine to drill horizontally and insert large diameter MS pipes in between the debris so that the trapped workers can be taken out throught the metal pipes.
After an underground tunnel collapsed in Uttarkashi in which 40 people are feared being trapped, the report said that on November 10, re-profiling and primary lining works in the tunnel were safely completed.
After inspecting the tunnel Yamunotri National Highway site where a section of the under-construction tunnel near Silkyara collapsed, Chief Minister Pushkar Singh Dhami said that the experts are working on multiple plans to evacuate people.
After taking stock of the situation of the under-construction tunnel accident in Uttarkashi, Chief Minister Pushkar Singh Dhami said that PM Modi has taken information about the entire incident yesterday and has assured of all possible assistance.
Karamveer Singh, NDRF Assistant Commander said that plaster had been done for 200 meters from the starting point of the tunnel but there was no plaster beyond that, which became the main reason for this collapse.