Forty-one workers trapped in an Uttarakhand tunnel for 10 days could be pulled out within the next two days with the help of a drilling machine, but if it doesn't work out the rescue could even stretch to 15 days, a top government officer has said. The workers have been stuck in the 4.5-km tunnel in Uttarakhand state since it caved in early on November 12. They are being supplied food, water, and medicines through steel pipes.