Uttarkashi Tunnel Collapse LIVE: Efforts to rescue 41 workers trapped inside the Silkyara under-construction tunnel in Uttarakhand’s Uttarkashi entered 16th day on Tuesday. Rat-hole mining experts have begun manual drilling through last 10- or 12-metre stretch of debris of collapsed portion of under-construction tunnel on Char Dham route. Simultaneously, vertical drilling from above tunnel has reached a depth of 36 metres out of 86 metres needed. Twelve rat-hole mining experts are being involved in manual drilling, which was earlier being carried out by auger machine that got stuck in rubble on Friday, forcing officials to focus on
