The trial was adjourned till March 30 as anti-terrorism court Judge Chaudhry Habib-ur-Rehman was expected to return to duty on Monday, sources told PTI.
There were no proceedings today.
In a separate development, chief prosecutor Chaudhry Zulifqar Ali told PTI that Indian authorities had not yet responded to a request for a written assurance that a Pakistani judicial commission would be allowed to cross-examine four key witnesses during a planned visit to Mumbai.
He said it should have taken Indian authorities more than a day to respond.
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"We had written to the Indian government on February 12 and we're still awaiting its response," he said.
Ali said defence lawyers had also not submitted their travel documents for the planned visit.
The Pakistani judicial commission's visit to India has already been delayed by several weeks over the issue of the assurance that members of the panel will be allowed to cross-examine witnesses.
The trial of the seven suspects has progressed at a snail's pace due to repeated adjournments and various technical delays.
They have been charged with planning, financing and executing the attacks that killed 166 people in November 2008.