'Like we're knocking at front door': Tunnelling expert Arnold Dix on Uttarakhand rescue ops

The international tunnelling expert said that his promise has always been to bring all 41 workers back home safely. After making a breakthrough in rescue operation to reach the workers trapped inside the under-construction Silkyara tunnel by drilling 45 metres through the rubble, international tunnelling expert Arnold Dix on Thursday described how far away the rescuers are from hitting the end point. Dix is aiding the rescue process. At the moment, it's like we are there at the front door and we are knocking on it. We know that the guys are there on the other side. I am going to have a look and see what is happening, he said after reaching the tunnel site. Former advisor to Prime Minister's Office Bhaskar Khulbe said the team of rescuers will take another 12 to 14 hours to complete the drilling process.