The mishap occurred when CIMS Dean S K Mohanty's son Sunil Mohanty (20) and his friend Agnivesh Sharma (20), slipped 40ft down a waterfall while trying to wash their feet at the Siyadevi tourist spot in Naragaon village of Balod, police told PTI today.
Eight students, including Sunil and Agnivesh, had gone to Siyadevi temple yesterday to enjoy a picnic, police said.
Later the bodies were fished out with the help of villagers and sent for postmortem.
Both the youths died on the spot owing to grievous head injuries, police said.
Chhattisgarh Chief Minister Raman Singh has expressed grief over the demise of the two students.