A 54-year old man, who sustained injuries following a group attack at Manadukkam under the Rajapuram police station limits, died in a hospital in Mangalore on Thursday, the police said. Four persons were taken into custody in connection with the incident. Ramachandran Nair, a cook by profession, sustained serious head injuries on Tuesday night when a group of persons attacked him with deadly weapons near his Manadukkam residence, about 30 km from here. He was rushed to the Kasturba Medical College Hospital, but succumbed to his injuries in the afternoon, the police said. Personal enmity is said to be the motive behind the attack, according to the police. The cases were registered under Section 302 of the Indian Penal Code, they said. — Staff Reporter