The Department of Telecommunications (DoT) is taking measures to prevent cybercrimes and threats from fraudsters and anti-national elements by blocking both overseas and local phone numbers. In response to complaints and verification from telecom operators, the DoT has already blocked more than 1,500 callers, including international numbers. Among the notable names on the block list is designated terrorist Gurpatwant Singh Pannun, who has issued threats targeting the BSE, NSE, and Air India. Additionally, the DoT is actively verifying details about such callers through international gateways.