One car, nine mobile phone sets, nine SIM cards, four laptops and four cheque books of different banks were seized from their possession.
Additional commissioner of police AKM Hafeez Akhter at a media briefing at DMP media center on Thursday said that the detectives arrested them from Dhanmondi, Banani and Mirpur areas of Dhaka on 5 and 6 October.
They cheated their clients by using personal unauthorised loan apps like Cashman ,Tkala, Personal Loans Online, RapidCash- Quick Online eLoans App, AmarCash-Personal Loans Online, Cashkash-Fast Loans Online and CashCash .
Besides, the arrestees operated financial institutions called Thunder Light Technology Limited, New Vision Fintech Limited and Basic Development Society without government approval, he said.
The arrests were made based following a case file at Dhanmondi police station by a victim under the Digital Security Act, he added.
He said the Detective Cyber and the Special Crime Division of DB is investigating the case.