The West Bengal Police has recovered over 200 crude bombs from a farmland in Bibhum district.
The police had earlier in January recovered close to 200 crude bombs from Birbhum after which they arrested two persons.
Last year, a crude bomb explosion had killed one and injured three in Birbhum when one of the crude bombs, allegedly made by four workers, went off accidentally in a market area.
Further details are awaited.