It is suspected that an old dispute between the two villages was the reason behind the clash, said Additional Superintendent of Police (Kiriburu), R M Bhakla.
However, a probe is on to ascertain the exact reason behind the incident, he said.
Bhakla said the incident took place at a weekly market when the rival group members clashed following an altercation. A police team rushed to the spot, which was in a remote place bordering Manoharpur-Tonto blocks of the district.