MUMBAI, Sept. 17 -- As part of its investigation into the two illegal call centres in Nashik which conned United Kingdom (UK) residents of crores of rupees, the Central Bureau of Investigation (CBI) has written to a UK-based international online payment service, to freeze the accounts used for the fraud. CBI officials said that last week the agency also wrote to the online service asking for details about the funds allegedly parked in the gang's accounts. As per CBI officials, the accused made the victims pay them through online payment systems and the money was transferred to accounts managed by their gang. The money was then pooled into accounts of the gang's UK-based members, the agency officials added. So far, the CBI's probe has revealed that the syndicate's conspirators orchestrated the fraud from Nashik, Delhi, and the UK. Operators in the illegal call centres would impersonate insurance agents and government authorities and make the victims pay for "non-existent insurance policies" for their television accessories. CBI officials said the call centres in Nashik were operating under an alias of M/s Swagan Business Solutions Pvt. Ltd. Following source information, the CBI had registered a case on Thursday against several accused persons-unknown public servants and others-who were allegedly involved in the fraud. The CBI is probing into allegations that the scammers were giving bribes to public servants who in return allowed the illegal call centres to function unchecked. Officials added that a Delhi-based suspect known as 'Akshay' was allegedly helping the accused gather phone numbers of victims at a 50 paise charge per contact number. CBI officials said the accused had set up a 'command centre' in a bungalow at Trimbak Road in Nashik, and would monitor the call centres' fraudulent activities on a daily basis. On Saturday, the CBI arrested the two key accused brothers, Ganesh and Shyam Kamankar, for allegedly operating the racket. A Thane court has granted the CBI the duo's custody till Thursday. Their lawyer denied allegations against them, claiming that the Nashik call centres were authentic and that what was deposited into the company's accounts were legitimate service charges from UK citizens....