The armed Maoists, four in number, forcibly took away Kammella Raghavaiah (38), a Congress leader in Mahadevpur mandal from his house and allegedly gunned him down before escaping under cover of darkness.
The ultras were suspecting that Raghavaiah was a police informer.
The deceased was a contractor and had undertaken works under various central government schemes such as Integrated Action Plan.
Police have registered a case and sent the body of the deceased for post mortem.