The Bharatiya Janata Party (BJP) leader provided to police the number from which the calls were made, threatening to kill him.
Kishan Reddy, who was elected from Secunderabad Lok Sabha constituency, was inducted in Modi cabinet on May 30. He had received threatening calls in the past also.
Meanwhile, police also registered a case against unknown persons making objectionable posts against Telangana Labour Minister Malla Reddy on the social media. The minister lodged a complaint that some unknown persons were making objectionable posts about him on Facebook and other social media platforms.
The police said they identified the IP addresses of those who were trolling him and making objectionable posts. A police officer said they were trying to trace the accused for further action.