According to a senior official of West Bengal CID, Ratan Shaw was arrested during a joint raid conducted by CID and the Department of Telecommunications (DoT) from his Rishra residence in Hooghly district today.
"He had illegally installed to route international VoIP calls to domestic telecom network bypassing international gateways posing security threat and also causing revenue loss to the government," the officer said.
The call routing equipment and the SIM cards have been seized, he said.