Police have arrested 26-year-old Sangin Rai of Pauwadungma Rural Municipality-5, Bhojpur, on Tuesday, on a charge of pelting stones to police on duty. Rai, who was drunk and driving a scooter from Dharan, pelted stones at the police constable on duty at  Andheri river over the issue of entering through the checkpoint. The injured police constable is undergoing treatment at Birat Medical College, Biratnagar, Morang. Police are conducting further investigation in this regard.