The first pictures of all the 41 workers trapped in the debris of the under-construction Silkyara tunnel in Uttarakhand’s Uttarkashi district since November 12 were made public on Tuesday morning.
The pictures were taken with endoscopic flexi camera, officials said.
The authorities have also deployed two robots, which have started the work of entering the tunnel.
Experts and machines from all over the world are being used to save the lives of the workers trapped in the tunnel, with the work now progressing on a war footing.
On Monday, an additional six-inch wide pipeline was successfully laid in the tunnel.
Besides, the alternative road being constructed by Border Roads Organisation (BRO) over the tunnel is nearing completion.
The officials said efforts will be made to remove the trapped workers by using drilling machines from the top of the tunnel.
