Rourkela: Once he was lucky, but the second time his luck gave way. Encouraged by his successful robbery of Rs 2.82 lakh at an Odisha Grameen Bank branch in Sundargarh district two months ago, a 21-year-old college student made another attempt on Tuesday, only to fall in the police net, along with three of his accomplices, including a juvenile.Police on Wednesday said they arrested three people, including alleged mastermind Gourav Majhi, a Plus III student, and detained his 17-year-old accomplice when they again came to carry out another robbery at the Odisha Grameen Bank branch at Kandabahal.While the juvenile accused is an engineering diploma student, the other two are Plus II second-year students.According to police, Majhi, who stayed at a private hostel in Kandabahal, allegedly planned the first robbery after he was unable to repay Rs 50,000 for a camera he had borrowed from a friend and subsequently given to another person, who disappeared with it.Police said that Majhi discussed the plan with Akash Kishan (22) and Rabi Kishan (21), while the juvenile also joined them. A firearm was also allegedly arranged for the robbery.On Sept 7, a masked man allegedly entered the bank, threatened employees with a countrymade pistol and fled with Rs 2,82,570.On Tuesday, a man allegedly tried to enter the bank again from the rear after breaking a window and threatened employees with a pistol. The branch manager alerted police, after which teams from Sadar, Town and Bhasma police stations cordoned off the area and caught the accused.Police subsequently apprehended two others and detained the minor, besides seizing a countrymade pistol, clothes, a face mask and shoes. Further investigation is on to recover the stolen money and ascertain the source of the firearm.