The incident took place ahead of the April 10 Lok Sabha polls in the Maoist-affected district.
Inspector General of Police (Operation) Amit Kumar had that said a joint team of CRPF and Bihar police was defusing the landmine planted by ultras in Dibra police station area of the district when it exploded.
Official sources said Singh and other security personnel reached the area where the IEDs were planted but the explosion took place before the bomb disposal squad could reach the spot thereby injuring the troopers on spot.
Trivedi said he has rushed his Inspector General (Operations) to Bihar even as a Court of Inquiry has been initiated in the entire incident.
“The inquiry will establish what exactly happened and if there was any possible violation of standard operating procedures by the troops even as it would establish if there was a delay on the part of the medical aid and helicopter sortie,” a senior official said.