Sessions court judge Dhandha, who had been assigned the trial in February 2011, retired on August 31.
The case, which had attracted nationwide attention, is in the last stage of completion as hearing of final arguments from both defence and prosecution is over.
With Dhandha's retirement, the new judge may have to hear final arguments from all the parties again.
"Court was to hear final arguments from our side. But now as presiding judge has retired, new judge will have to hear final arguments from all the parties again," said advocate S M Vora, who is representing victim witnesses in the case.
More From This Section
According to prosecution, 67 accused who are facing trial in the case included then Meghaninagar Police Inspector K G Erda.
Supreme Court in 2008 had directed setting up of the Special Investigation Team (SIT) to re-investigate ten cases, including the Godhra train burning case, and in 2009 ordered designated courts for the speedy trial of those cases.
In 2011, following the objections from the victims of Gulbarg Society violence, then trial judge B U Joshi was replaced with B J Dhandha as designated judge.