India’s IT-services association, Nasscom, has urged television channels — Star News (India) and Channel 4 (U.K.) — to cooperate “immediately” with the Indian authorities in the light of the supposed findings by Channel 4 featuring credit card data, along with passport and driving license numbers being stolen from call centers in India and sold to the highest bidder.

“Middlemen are offering bulk packages of tens of thousands of credit card numbers for sale. They even have access to taped telephone conversations in which British customers disclose sensitive security information to call center staff,” The Sunday Times reported of London quoting the “investigative” report by Channel 4.

Channel 4 is understood to have spent over a year trying to locate security lapses in Indian call centers.

The only available information is that Channel 4 has on record a middleman, named Sushant Chandak, offering to sell a database with the credit card details of 2,00,000 people as commercial “leads.” At a meeting in Kolkata, he seems to have boasted of a network of agents in call centers across India. In addition to that database, he also claimed of having passport numbers, driving license numbers and personal banking details.

A second New Delhi based middleman, known as Ghufran, was apparently offering details of customers with Halifax, Nationwide, Woolwich, Bank of Scotland and NatWest for six dollars each. The details are believed to have been obtained from purchases using cards, the report claims. Technical-support staff that visited call centers had obtained the information, according to Ghufran.

Interestingly, according to the newspaper, Chandak and Ghufran have denied selling information unlawfully. Chandak reportedly said that the information he provided was not genuine while Ghufran claimed that he was merely the receiver of data passed on by other sources