A mechanical engineer in Faridabad was held 'digitally' hostage for six days by cyber fraudsters who duped him of Rs 3.46 lakh. The fraudsters forced him to lock himself in a room and monitored his activities through his mobile camera. They convinced him that he was involved in a drug smuggling operation and threatened him with legal action. The victim eventually realized the scam when the fraudsters forgot to switch off their mics and started talking to each other. Police have registered an FIR and are investigating the matter.