ISLAMABAD, Oct 25 (INP): Former prime minister Nawaz Sharif petitioned the Islamabad High Court (IHC) on Wednesday seeking to stop the indictment proceedings against him in the accountability court. Nawaz, through his representative Zafir Khan, has submitted three petitions in the high court challenging the accountability court’s October 19 decision to indict him in the Avenfield properties and Azizia Steel Mills reference. INP/AH