Over 20 people were arrested after a clash broke out in Nalanda district of Bihar between two groups following a Ram Navami procession on March 31, in which eight persons were injured, a police official said on Saturday.

The clash broke out on the 10th day of Ram Navami celebrations near Gagan Diwan under the Laheri Police Station area in Biharsharif, which is the district headquarters of Nalanda. Miscreants pelted stones and set around half a dozen vehicles ablaze. According to police, three people sustained bullet injuires in firing in the clash.