MUMBAI, July 5 -- The Economic Offences Wing (EOW) of the Mumbai Police has arrested a 56-year-old man from Surat for allegedly cheating 42 investors of around Rs.30 crore through a Ponzi-style investment scheme that promised monthly returns of 2% to 5% via a mobile application. The accused, identified as Rohan Bhushan Seth, was allegedly operating the investment scheme through an app called Investok from his residence in Matunga. According to the EOW, Seth lured investors by promising assured monthly returns of 2% to 5% through stock market investments. To gain their confidence, he allegedly paid returns for the initial few months before stopping payments, following which investors approached the police. EOW said 42 victims have so far come forward, alleging they were collectively cheated of about Rs.30 crore. After the case was registered in April, Seth allegedly fled Mumbai and frequently changed his identity, appearance and whereabouts to evade arrest. He was eventually tracked down and arrested in Surat....