Rajesh, 26 and a resident of Haryana's Hisar district, was arrested near the parking area of Sector 14 Dwarka Metro Station. Fourteen ATM cards have been seized from him.
A driver by profession, he frequently visited Delhi.
"He used to recce the ATMs where innocent people or senior citizens used to withdraw money and would offer them his help in withdrawing money during which, he fraudulently swapped their ATM cards after knowing smartly the card's PIN," DCP (Crime) Bhisham Singh said in a statement.
With his arrest, five cases of fraud have been solved, the police said.