Justice Sonia Gokani told the lawyers representing Zakia, the SIT and the state government that she will pronounce the order on August 21.
The hearing in the case had concluded on July 3.
The high court had earlier said that it would pronounce the order today.
It has heard a criminal review petition moved by Jafri and activist Teesta Setalvad's NGO Citizen for Justice and Peace, challenging the lower court order upholding the clean chit given by the Special Investigation Team (SIT) on the alleged larger criminal conspiracy behind the 2002 riots.
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The petition demanded that Modi and 59 others be made as accused on charges of criminal conspiracy behind the riots.
On 28 February 2002, 68 people, including Ehsan Jafri, were killed by a mob at Gulberg Society in Ahmedabad.
During the course of hearing, the SIT had submitted before the court that its report challenged by Jafri was investigated under the watchful eyes of the apex court and was largely accepted by all.
It had submitted that the lower court, where the case was first heard, had looked into all aspects of the allegations to conclude that there was no further need to investigate the matter from the angle of larger conspiracy.
He submitted that the lower court ignored the Supreme Court's guidelines and had not considered the signed statements of witnesses which suggested that there was conspiracy behind the incidents.
He also mentioned that the court had ignored submissions of key witnesses like Sanjiv Bhatt, R B Shreekumar and Rahul Sharma, and had ignored the findings of Tehelka magazine regarding the same.
In December 2013, a metropolitan court had rejected Jafri's plea to book Modi and others for criminal conspiracy, after which she moved the high court in 2014.
The SIT had on February 8, 2012, filed a closure report, giving a clean chit to Modi and others in the case.
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