Mumbai: City cyber police on Thursday arrested a wholesale garment trader from Delhi for his alleged involvement in swindling Rs 12.8 crore from a 56-year-old Chembur resident, who was placed under ‘digital arrest’ for 30 days.Their probe revealed that Rs 98 lakh was diverted through his bank account. Police suspect his involvement runs deeper than being a mere money mule.The suspect, Arvind Arjun Singh (48) from Delhi’s Paharganj, was produced before a Delhi court and brought to Mumbai on transit remand.Last Dec, the Chembur resident, a retired private sector employee, received a call from a person who claimed to be a representative of Telecom Regulatory Authority of India. The caller told him that his Aadhaar number and phone number had been used to open fraudulent accounts in five states and were linked to money laundering and drug trafficking. Before he could even get a sense of what was happening, the victim was immediately connected via phone and WhatsApp video to someone posing as a crime branch officer, who turned up on camera in police uniform and displayed a fake arrest warrant bearing his name. This scamster said multiple cases had been filed against him and that he was set to be arrested from his home in hours. The victim was then placed under digital arrest, and told to cooperate with the “investigation” and keep his phone camera on at all times.He was warned against disclosing the incident to anyone and was told the investigation was confidential.Over the next 30 days, the fraudsters, who even posed as CBI officials, coerced the Chembur resident into transferring Rs 12.8 crore from his and his 80-year-old mother’s joint investments into multiple bank accounts. He eventually realised he had been conned after the fraudsters stopped communicating with him.With technical help, an east region cyber cell team led by inspectors Devram Pardhi and Naik, under the supervision of DCP Datta Nalawade, scoured multiple bank accounts and arrested Singh. “He not only allowed his bank account to be used to park the money that was siphoned off but is also part of the cyber fraud. We are interrogating him to reach his handlers,” said a police official. Police are also tracing phone numbers and other bank accounts used in the fraud.