In the first incident that occurred in Sukma district of the state, Naxals opened heavy fire on a patrol of the specialised anti-Naxal operations force CoBRA that was coming back after escorting a polling party which has reached the Maoist stronghold as part of the polls scheduled tomorrow.
Officials said a strong squad of about 100 Naxals surrounded the party from three sides, leading to the killing of two commandos while three others were injured.
The incident comes at a time when the forces are at their maximum alert.
A joint column of CRPF, state police and commandos on a helicopter have been launched in the area, the official said, adding a "cordon and search" operation has been launched.
Also Read
"We are alive to every possibility and we will conduct the polls peacefully," a senior security official monitoring the security forces deployment in Delhi said.
Bastar IG Arun Dev Gautam said the incident occurred around 10:30 AM after the Naxals ambushed the commando patrol party which was moving on foot.
Officials said a patrol squad of the force was on a operational task when two Improvised Explosive Device (IED) blasts occurred in the forests of Bijapur near Gangloor village.
"The incident occurred when a Road Opening Party (ROP) of the paramilitary was on an operation for election-related security in Gangaloor police station area this morning," Bijapur Superintendent of Police Prashant Agrawal told PTI.
"During the operation, the personnel came in contact with a pressure bomb that exploded," he said.
The Maoist-hit Bastar constituency of Chhattisgarh is the lone seat going to the polls in the first phase of parliamentary election in the state tomorrow.