While investigating the case, sleuths found alleged involvement of the three - Manjit Gupta, Sakwat Alam and Upendra Shah - all residents of Jharkhand's Pakur district, a senior officer of the Kolkata Police said.
"Faces on the CCTV footages have similarity with these trio whom our team has arrested late last night. We are bringing them to the city," he said.
According to senior police officers, the trio were part of a five or seven-member gang who were robbing unmanned ATMs in and around the city.
Over Rs 36 lakh were looted by miscreants cutting open two unguarded ATMs, both in Dumdum area last week.