Patna: A joint team of Bihar STF and police from Darbhanga late on Saturday night arrested a notorious criminal, Noor Mohammad alias Lalbabu and his two accomplices, who demanded an extortion of Rs 2 crore from a doctor at Phulwarisharif in Patna district. Lalbabu, a resident of Lahiarchak Alampur locality under Phulwarisharif police station area and his associate, Mohd Farhan, a resident of Ishpur, Patna, were arrested from Darbhanga. The STF officials said a case was registered at University (Darbhanga) police station, and further action is being taken.Police recovered a pistol, six live cartridges, a magazine, Rs 2,50,000 in cash, and four cellphones from the accused’s possession. Based on the information provided by the arrested criminals, Mohd Saif was arrested from his home with illegal firearms from Phulwarisharif police station area in Patna. A case was registered in this regard in Phulwarisharif police station area. Police recovered a country-made pistol, five live cartridges, a magazine, and a cellphone from his possession. On June 28, the three criminals threatened to kill a doctor at a private hospital in Phulwarisharif unless he paid Rs 2 crore. A case was registered under Sections 308(3)/308(4) BNS at Phulwarisharif police station, leading to their swift arrest by the special teams.Cases of extortion and Arms Act violations were earlier filed against Lalbabu in various police stations in Patna and Darbhanga.