The operation was conducted jointly by paramilitary CRPF and state police in the Bankebazar and Imamganj area of the district.
During the operation, a senior official said, 14 IEDs of five kgs each, three tiffin IEDs of 10 kg each and 10 packets of explosives (250 gm each) were recovered from a hideout suspected to have been used by Maoists.
The entire cache has been handed over to local police, they said.