Biswal, also the former Odisha Chief Minister, has been shifted to a hospital in Rourkela after undergoing preliminary treatment at Sundergarh district headquarters Hospital, S Majhi, Sundergarh Sub-divisional Police Officer (SDPO), said.
Biswal's condition was stable, hospital officials said.
Police said Biswal was on way from Sundergarh to Rourkela in his SUV when it hit against a road side culvert while trying to overtake a truck near Karamdihi, they said.
Biswal, who was sitting in the front seat, received head and chest injuries.
Locals rushed the three injured to hospital.