A youth, Arun Maharana, of Mathura village in Ganjam district was beaten to death by his rivals on Saturday.The miscreants after killing Arun threw his body in front of his house, police sources said.After getting information about the murder, the police reached the spot and sent the body for autopsy.On the basis of a complaint lodged by kin of the deceased, the police detained a youth from the village and have started a manhunt to nab the culprits involved in the murder.Though the exact reason of the murder is yet to be ascertained, the police suspected that previous animosity might be the cause behind Arun’s killing.