Deepak Mandal, son of ruling Janata Dal (United) MLA Bima Bharti, was found dead on a railway track in Patna on Friday. Bima Bharti represents the Rupauli Assembly constituency in Purnia district of north Bihar.Deepak Mandal’s body was found near the Rajendra Nagar railway terminal. He was studying in Patna and had stayed at a friend’s house near the railway terminal on Thursday night, the police said. His father, Awadhesh Mandal, is a gangster from the Seemanchal area, with over a dozen cases pending against him. Speaking to reporters, he accused his rivals of killing his son.