Kolkata-Bihar STF bust mini gun factory in Bihar's Purnea; improvised firearms seized

An active, illicit arms manufacturing operation was dismantled in Bihar’s Purnea district following a coordinated, cross-border intelligence strike. Acting on confidential data gathered by the Kolkata Police STF, a joint tactical unit comprising Kolkata STF, Bihar STF, and Damdaha Police launched a synchronized raid on Monday evening. The surprise operation targeted a residential estate belonging to two brothers, Mithu Kumar and Gabbar Rai, in Haripur village under the Damdaha jurisdiction.

To avoid arousing local suspicion, the operators operated a legitimate commercial paper-plate factory on the visible ground floor. Directly beneath this enterprise, they had excavated a secret, heavily insulated subterranean bunker chamber. This structural strategy was intentionally designed to mask the hidden weapons assembly floor from sight and systematically suppress the loud industrial noise generated by heavy machinery during active production cycles.

The physical sweep of the underground bunker yielded five semi-finished improvised pistols, five separate pistol bodies, and four detachable pistol butts. Alongside the ballistic inventory, law enforcement teams seized heavy manufacturing infrastructure, including a lathe, a precision milling unit, a drilling rig, and a grinding-and-polishing assembly line, along with a massive stash of weapon-forging raw materials.

Four operational handlers on the floor—the property owners Mithu and Gabbar, alongside two master gunsmiths from Munger, Md. Anwar Khan and Md. Aftab Alam and others were immediately arrested. Following on-site interrogations, tactical teams executed a secondary dragnet in Munger to arrest the primary logistical mastermind, Suraj Kumar. The Damdaha Police Station has formally prosecuted all five suspects under strict clauses of the Arms Act and the Bharatiya Nyaya Sanhita (BNS).