Kailash was abducted last night and today his body was found on the outskirts of the town.
When the police reached the spot, agitated locals pelted stones at them, however, the situation was brought under control later.
"Main accused Leelee Gujjar with his two associates were nabbed in Rewari area in Haryana," Superintendent of Police, Alwar, Umesh Chand Dutta said.
Primary investigation reveals that an old rivalry was the reason behind the murder of Kailash, who was associated with Dhanraj gang in Alwar, the SP said.