A group of men had a harrowing experience in a flooded hydro tunnel. One of them, Ram Chandra, managed to grab onto a rung in the roof of the tunnel, which likely saved his life. He and his colleagues were far from the exit, hundreds of meters away.

The water was rising, making it difficult for them to move. Ram Chandra used a tin sheet to help them inch forward, passing it around the group as they moved rung by rung. This desperate attempt to escape lasted for six hours.

Further details of their ordeal are available from the source, including the events that unfolded after they finally escaped the tunnel.