Somaram Majjhi (50) was shot dead in Karcheli, a village in a forested area, by Naxals this afternoon, Superintendent of Police K L Dhruv said.
Majjhi, attached to Bijapur police station, had gone to visit his daughter who lives in Karcheli.
Naxals arrived as he was sitting at a tea-stall in the weekly market and shot him, Dhruv told PTI.
Police have launched a combing operation in the area to nab the rebels.