Security officials said the 'C' company location of the 139th battalion of the force located in the jungles of Kursnar came under Naxalitie fire, which was retaliated.
Intermittent firing was on but there were no casualities on both the sides, they said.
CRPF has deployed 20 battalions for anti-Naxal operations in the state and will soon induct four more units. Each battalion has an approximate strength of 1,000 personnel.