Accused Shashank Sharma was part of a group of 10-12 cow vigilantes which attacked Rizwan, Kamil and Ashu while they were transporting 14 buffaloes in a vehicle in Kalkaji area on late Saturday night, Deputy Commissioner of Police Romil Baaniya told IANS.

According to some accounts, a few members of animal rights group People for Animals (PFA), headed by Union Minister Maneka Gandhi, were also involved in the assault.