Four youths who were allegedly running a call centre posing as customer care officials of global e-commerce giant Amazon to dupe people abroad have been arrested on Park Street, in Tiljala and Topsia.

The four, arrested earlier this week, operated from a rented apartment in Tagore Park.

“They would call US residents and introduce themselves as Amazon customer care executives and say that the call recipient had erroneously paid extra money while ordering a product through the online portal. The calls were made at random without knowing if the recipient had shopped on Amazon,” an officer said.

The racketeers would try to convince the call recipient that they had booked a product and paid extra. “Most would not be convinced but some would start believing that they actually booked the product and agree to take a refund. Once they agreed, the racketeers would send a link and ask for bank details,” the officer said.

When the recipient clicked on the link, a spyware would be installed on the device of the person abroad, sleuths said. Through the spyware, the racketeers could have remote access to the device and make online transactions on their own using the bank details given by the customers.

The accused — identified as Sheikh Tipu, Ahmed Irshad, Zoha Khan and Kamaluddin — were produced in court and remanded in police custody.