The incident occurred at around 11.45 AM under Maraiguda police station limits on the under construction Maraiguda-Golapalli road, when a joint team of CRPF and DRG was patrolling in the area to provide security to the construction workers, a senior police official told PTI.
A composite squad of Central Reserve Police Force (CRPF) and DRG was carrying out its operations in the region, located around 450 km from Raipur, he said.
Assistant constable Madkam Joga, belonging to DRG, inadvertently stepped over thepressurelandmine, triggering the explosion, the official said.
A combing operation was launched in the region to nab the ultras, police said.