The Official Secrets Act special court summoned PTI Chairman Imran Khan and Vice Chairman Shah Mahmood Qureshi in the cipher case on Tuesday.
The hearing was conducted on Thursday by special court judge Abil Hasnat Zulqarnain at Adiala Jail. Qureshi's lawyer Ali Bukhari, and Khalid Yousuf appeared before the court.
The judge asked about the copy of the Islamabad High Court decision in the cipher case, which was provided by the court staff.
The judge remarked that the trial of the cipher case would now proceed from the position that prevailed before August 29.
The judge issued the order.
The Official Secrets Act court will now hear the cipher case on November 28.
The special court judge later issued a two-page order.
The hearing of the cipher case was scheduled for today in Adiala Jail to record the prosecution evidence, the order said.
It added that the Islamabad High Court declared the jail trial and the proceedings conducted after August 29 null and void.
The jail authorities should produce the PTI chairman and Shah Mahmood Qureshi in court for the next hearing on November 28.