As many as 10 people were crossing the river to go to Badwasan village from Loidi in the boat when the incident occurred in Sapotara area, Circle Inspector Kanhaiya Lal said.
He said Sonu (13), Monu (10), Sher Singh (16) and Sunita (33) drowned in the incident while others were rescued.
The bodies were handed over to their family members, he informed.