The Udayamperoor police on Sunday arrested two persons on charges of assaulting a person who reportedly opposed the sale of addictive substances by the accused persons. The arrested persons have been identified as Sibi, 23 and Maneesh, 24. According to the police, Manoj, a resident of Udayamperoor, sustained multiple injuries on the head after being attacked by the accused. The attack took place around 9 p.m. near the Mutturkkavu temple where the complainant had been attending a festival at the temple.