Islamabad [Pakistan], March 5 (ANI): The Islamabad High Court (IHC) has summoned the Pakistan Telecommunication Authority (PTA) Chairman regarding the audio leak case, following his counsel’s denial of any authorization for call interception by the regulatory body, Dawn reported. The petitions filed by Najam Saqib, son of former Chief Justice of Pakistan Saqib Nisar, and Bushra Bibi, spouse of former Prime Minister Imran Khan, challenge the inquiries initiated against them based on an alleged audio leak. The report said that the directors general of the Intelligence Bureau (IB) and Federal Inv…