The encounter took place in the Tonguda-Pamed area of Bijapur district at about 4 am.
A joint squad of 229th battalion of the Central Reserve Police Force and local police had launched an anti- naxal operation in the interiors of Usoor, about 450 km from state capital Raipur.
Five Naxals were killed on Saturday in the gun-battle with the DRG in a dense forest area of the district, located about 350 km from the state capital Raipur.
A joint team of Narayanpur DRG and the STF were out on area domination operation since early morning when the armed Maoists ambushed them resulting in an encounter.
The gunbattle broke out in a forest near Gumiyapal village, located around 400 km from Raipur, when a District Reserve Guard team was out on an anti-Naxal operation.