The accused allegedly installed a skimmer in an ATM in the locality to capture details of customers swiping their cards to withdraw money, Joint Commissioner of Police, Thane, Madhukar Pandey said.
In a skimming fraud, hidden electronics is used to steal the personal information stored on debit card and record Personal Identification Number (PIN).
The Cyber Cell of the Thane police traced down the quartet through CCTV footage and their mobile numbers.
The accused are identified as Hyder Ali Sher Ali Sarang, Tabassum Mistry alias Janhavi alias Jyotsna, Sohail Shaikh, and Mohammad Jaid Rangwala, working with a mobile gallery.
One of the accused, Rangwala had provided SIM cards to his accomplices on fake identification, police said.