Dr B Thomas (Special correspondent)
The Central Crime Branch officials stepped up investigations to crack down another illegal telephone exchange which is operating in the city.
Senior officer told reporters,The investigations was taken up based on a complaint filed by,Hind Gaurav,officer with security LAS unit,Ministry of Communications Department of telecommunication,who found that the four SIM cards are being used as SIP/Trunk exchange to convert international to local calls .
This according to Mr.Gaurav not only posing threat to national security but violations telecommunications rules and causing huge loss to the state exchequer.
Based on the four numbers provided,the police stepped up the investigations to track down the accused operating the exchange in and around the city.
It may be recalled that the CCB had busted many such illegal telephone rackets being operated in the city earlier.
