"The explosive, weighing around 15-20 kg, was unearthed by a joint team of security personnel near a culvert on Aundhi- Sharda Road under Aundhi police station limits," Rajnandgaon Superintendent of Police, Prashant Agarwal said.
Based on specific inputs, a joint squad of Special Task Force (STF), Indo-Tibetan Border Police (ITBP) and district force launched an anti-Maoist operationtowards Sarkheda, Sharda and Pendodi villages of Aundhi, located around 170 kms away from Raipur.
"When they (security personnel) were cordoning off the route, they spotted the IED placed in a steel container beneath the earth and 100-metre wire, near a culvert ahead of Sharda village," the SP said.
Thebomb was meant to harm the security personnel during their operations in the region, he said.