The clash was ensued as police used force after protesters hurled stones at the former during a corner assembly near District Administration Office.
The law enforcement agency lobbed over a dozen shells of teargas and baton charged demonstrators.
Three police also got injured during the clash.
The injured are undergoing treatment at District Hospital, said SP Govinda Ram Pariyar.
Clash between police, Biplab cadres in Bardiya; 1 policeman inj...