Uttarkashi: With the auger machine encountering hurdles in the rubble time and again, rescuers are considering switching over to manual drilling at the Silkyara tunnel where 41 labourers have been trapped for the past 13 days, officials said on Saturday.
Drilling at the collapsed portion of the tunnel to rescue the trapped men was halted again on Friday night, in yet another setback to the multi-agency effort.
An official said the auger drilling machine faced a hurdle, apparently a metal object, a little after drilling resumed Friday, a day after officials had put the operation on hold following technical problems.
