The security personnel conducted the raids after receiving a tip off.
They seized 29 gunny bags containing explosives from a shop in Kaulakhshni area while 70 sacks of explosive materials were recovered from a house under Delha police station in the district, superintendent of police SM Khopade informed.
The SP added that each sack had 40 to 45 kg of highly inflammable explosives.
Forensic experts have been called in from Patna for tests.
There are reports that these explosives were meant to reach the Naxalites.