Hyderabad, Feb. 24 -- Hopes of finding eight trapped workers alive from an under-construction tunnel in Telangana's Nagarkurnool district were receding even as teams from NDRF, Army and other agencies continued rescue operations on Monday. More than 48 hours after a portion of the Srisailam Left Bank Canal (SLBC) tunnel collapsed, the fate of eight men, including two engineers and two machine operators, was not known.

Teams of the Indian Air Force and Navy are also reaching Srisailam in three helicopters from Visakhapatnam to join the rescue operation. National Disaster Response Force (NDRF) personnel managed to reach the tunnel boring machine at the 14th-kilometer point but heaps of debris hampered the search operation. The tunnel remai...