The incident took place when a joint contingent of BSF and district force were on a combing operation in the jungles of Tadoti Police Station area of the district, Kanker SP, R N Das told PTI.
When the patrolling party reached Shakti Ghat, Naxals opened indiscriminate fire, killing the jawans of the district force.
Those killed were identified as Sub Inspector Santosh Ekka and Head Constable Aliram Usendi.
Additional forces have been sent to the spot to recover the bodies of the jawans, he said.