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. Another person, said to be the ex-sarpanch of Laikera, who was also in the vehicle, sustained minor injury.
The driver of Biswal's vehicle was also injured. Locals rushed the three injured to hospital.