Nawada, June 24: An illegal mini-gun factory has been unearthed at Ohari village of Bihar's Nawada district, from where a huge cache of arms, ammunition and equipment used for making firearms have been recovered, police said today. Superintendent of Police B S Meena said, acting on a specific information, a police team raided the factory last night and seized four pistols, two unfinished pistols and a pipegun, besides nearly two dozen cartridges. Explosive material used for manufacturing bombs were also recovered, he said, adding, two notorious criminals identified as Ramdeo Mistry and Nand Kishore, wanted in several cases of murder and loot, who were running the unit, were arrested. Bureau Report