Biharsharif: Acting on a tip-off, Bihar Police on Saturday unearthed an illegal mini gun factory at Mirzapur village in Bihar's Nalanda district.

Superintendent of police Nishant Tiwari said, police raided a house at the village and uncovered the mini gun factory.

One Ram Das Mistri was arrested in this connection. A country made pistol and unfinished fire arms and several pistol making equipment were also seized.