The Narcotics Control Bureau (NCB) East Zone along with its Delhi counterpart busted an international drug racket and arrested three persons, including the owner of a call centre, on Thursday. More than 3,000 tablets of psychotropic substances have been seized, a senior officer of the agency said.

The official said that the drugs were mainly sold illegally through the internet to Canada and the USA.

Three persons who were using a call centre as a front for running the racket were arrested from in and around the city.

NCB sources said that 3,161 tablets of six psychotropic substances worth Rs 10 to 15 lakh were seized from the two drug dealers ~ Ganesh Pan and Sunil Agarwal ~ arrested by the NCB officers in a joint operation on Wednesday night.

Mr Dilip Kumar Srivastava, director of the eastern zone of NCB, confirmed it, adding that the seized drugs are, however, legal in the Indian market.

Dwelling on the manner in which the gang operated, Mr Srivastava said that the gang used to work through call centres and contact clients, especially in the USA and Canada, who in turn would make payments in Bitcoins.

The gang used a call centre by the name of Dream Advent Services and delivered the consignments via courier service.

“These drugs were provided by vendors and retailers in the city. We have also seized computers, laptops and various documents from the call centre,” Mr Srivastava said.

The owner of the call centre, Clement Phillips, was also arrested for aiding and abetting the crime, he said.