More than 40 hours after Sujith Wilson, a two-year-old boy, fell down an abandoned borewell in Tamil Nadu's Trichy district, rescue teams, including those from the National Disaster Response Force (NDRF), have been unable to reach him. Sujith had initially been trapped at a depth of around 26 feet but attempts to pull him up by knotting ropes around his hands led to him slipping to 70 feet. Authorities are now trying to dig a parallel tunnel - a metre wide - and then connect via a horizontal passage. The condition of the young boy is not known; oxygen and food are being supplied but there are concerns because he has stopped responding to calls.