Kolkata: Police recovered 70 pistols and other apparatus from a house in Gangaram Bairagi Lane in Howrah. Three persons have been arrested.According to the sources, the detective department of Howrah Police got a tip off about a consignment that firearms will be sent to Bihar. Based on the information, the sleuths were keeping a strict vigil in the area. On Tuesday evening, they got a tip off about a house witnessing suspicious movement in Gangaram Bairagi Lane. Also Read – Rain batters Kolkata, cripples normal lifeImmediately, a police team raided the house and found three persons working there with lathe machines. During a search operation, police found 40 finished and 30 unfinished pistols and other apparatus related to firearms manufacturing. The trio were arrested. Sources informed that the accused persons are from Munger in Bihar. They were about to send the finished firearms to Munger for polishing and painting. The trio had hired the house a few years ago for the purpose of lathe factory. During day time they used to do normal work. At night they used to manufacture firearms. Police will produce them before Howrah Court on Wednesday with an appeal for their police custody.