"No proceeding of the case was held today because the judge of trial court (Anti-Terrorism Court Islamabad) was on 'Umra leave'. The judge has gone to Saudi Arabia to perform Umra," a court official told PTI after the hearing.
The court office adjourned the hearing till next Wednesday.
During the last hearing the court had summoned four witnesses for recording of their statements.
In the last week's two hearings, the trial court had exempted Lakhvi from appearing in the court due to "threats to his life'.
Fifty-five-year-old Lakhvi has been released on bail since April 10.
Six other accused -- Abdul Wajid, Mazhar Iqbal, Hamad Amin Sadiq, Shahid Jameel Riaz, Jamil Ahmed and Younis Anjum -- have been in Adiala Jail for nearly six years in connection with planning and executing the Mumbai attack in November, 2008 that left 166 people dead.