In the Uttarakhand tragedy, 25-30 people are still feared trapped in Tapovan Tunnel where rescue ops are still underway. Rescue operations are still underway in the Tapovan tunnel to reach trapped people. Rescue teams on Saturday began widening a hole drilled into an approach tunnel on the way to the possible location of over 30 people trapped inside a sludge-choked tunnel of the NTPC’s Tapovan-Vishnugad hydel project after a flash flood ravaged the area.