Vijayveer (40), was allegedly killed late last night in Jangethi village under Incholi police station area by one of his colleagues, a police spokesperson said.
The victim was in conversation with the fellow guards, Rajpal and Harendra, he said, adding that it soon turned into an argument.
In a matter of time, one of them shot at the victim with his double-barrelled gun, leading to his death on the spot, he said.
A case has been registered against Rajpal and Harendra on the complaint of the relatives, police said, adding that both of them are absconding.