Two brothers were arrested onMonday for allegedly killing a married man who was in a relationship with their sister, police in Maharashtra's Jalna said.The duo has been identified as Akash and Sandeep Kamble while the 29-year-old victim is Shivaji Kasar, a Gondi police station official said."Kasar's body was found on Sunday evening. A probe zeroed in on the Kamble siblings. They killed him as he was in a relationship with their sister," he added.