Uttarkashi tunnel collapse: Rat hole miners arrive for horizontal drilling as vertical boring progresses

Uttarkashi, 27/11: Vrticalal drilling from top of the Silkyara tunnel where 41 workers have been trapped for the last 15 days progressed to 31 metres on Monday as a six-member team of rat miners arrived at the site to start manual drilling horizontally through the rubble lying in the collapsed part of the structure.

Vertical drilling has been done up to 31 metres so far, former engineer-in-chief and DG Border Roads Organisation Lt Gen Harpal Singh told reporters in Silkyara.