Bharat Togadia, the cousin brother of Vishwa Hindu Parishad leader Praveen Togadia and two others were stabbed to death by unidentified men in Surat's Varachha area late on 14 May.
A fourth person, Ashok Patel (32), was severely injured. He is said to be in a critical condition.
The three deceased have been identified as 40-year-old Bharat Togadia (brother of Congress councillor Pappan Togadia and first cousin of Pravin Togadia), 35-year-old Mahesh Radadiya (son of a former Congress councillor) and 45-year-old Bakul Hirani.
According to reports, police suspect a dispute over real estate to be the reason behind the triple murder.
The police have reportedly identified the accused in the case. Investigation is on in the matter.
Further details are awaited.
-With inputs from agencies