Calcutta, Nov.8 : Calcutta, Nov.8: Alipore court has heavily censured the Karaya police for the alleged torture of four teenaged students, arrested on a false complaint lodged by Sharad Nangia, a city businessman. On the basis of this ruling passed on Wednesday, the police have decided to arrest the businessman for lodging the false FIR. The boys were "mercilessly" beaten by the police after being taken into custody. Special sub-divisional judicial magistrate Sudhir Kumar discharged all four accused and reprimanded the policemen involved for not being cautious and not carrying out proper investigations before taking action against them. Nangia had lodged the complaint on November 18 last year, stating that the teenagers were regularly threatening him over the telephone with dire consequences and demanding money. He also said that the boys - Debojyoti Roy, Hridabrata Roy, Chandan Saha and Mihir Saraswati - had called him on his cellphone and asked him to come to a spot near Ballygunge railway station. Nangia had met them there and was subsequently "abducted" by the boys in an auto. He managed to jump off when the three-wheeler slowed down near the 8B bus stand in Jadavpur, his FIR had said. On the basis of this complaint, the Karaya police arrested the four the next day and allegedly tortured them in lock-up. On production in court, they were remanded to jail custody. The boys were released on bail in December. After making elaborate investigations, the detective department found that the allegations against the four boys were completely baseless. Tamal Mukherjee, lawyer on behalf of the accused, filed a petition at Alipore court, demanding an order directing the police to produce the investigation report. The police submitted the report on Wednesday, saying that these boys had been arrested on the basis of a false complaint. On behalf of the police, the public prosecutor sought a court order instructing the police to start a case against Nangia.