THANE, Jan. 28 -- Three brothers have been arrested for allegedly killing their cousin and seriously injuring another family member in a violent attack on Sunday in New Azad Nagar. The police said the incident stemmed from an old family dispute. According to the Shanti Nagar police in Bhiwandi, the deceased has been identified as Dilshad Makbul Ahmed Shah, 23, a cloth vendor who lived near Garib Nawaz Masjid in Shanti Nagar. The accused are Asif Abdulhakim Shah, 20, Alishan Abdulhakim Shah, 23, and Mudassir Abdulhakim Shah, 25, all sons of Dilshad's maternal aunt. The police said both families have been living in the New Azad Nagar slum for the past seven years. The dispute reportedly escalated after Dilshad intervened in a domestic issue involving his cousin and her husband. The police said the accused brothers took offence to what they saw as interference in their sister's personal life. On Sunday, the brothers chased Dilshad and attacked him with a sharp weapon, inflicting fatal stab wounds to his waist and thigh. He was rushed to a hospital, where doctors declared him dead. During the attack, Dilshad's elder brother Gulzar Shah, 25, rushed to the spot to save him, and was also assaulted. "The three were arrested and remanded to police custody till January 29," said senior police inspector Vinayak Gaikwad....