Tina, who is scheduled to appear before the court on August 23 for her deposition, moved the plea before Special CBI Judge O P Saini saying "I wish to state that owing to prior commitments, it will not be possible for me to travel to Delhi on August 23, 2013."
CBI prosecutor K K Goel opposed the application saying it was "dragging the trial" and noted that Anil Ambani too had filed a similar plea earlier.
More From This Section
"We will file our reply. It's like dragging the trial. Earlier Mr. Ambani had filed a plea seeking time and now Mrs. Ambani is seeking time. We will argue on this," the prosecutor said.
The judge listed the plea for arguments on August 21.
Tina, in her one-page application, sought adjournment for her appearance before the court on August 23 and requested it to fix a new date.
"I request your honour to kindly grant an adjournment for my appearance and fix a new date at any time towards the end of September 2013 or preferably October 2013 at your convenience," she said.
She also said that summons dated July 26 has been received by her on August 6.
The court had issued summons to Anil and Tina for recording of their statement as prosecution witnesses in the case for August 22 and 23 respectively.
Earlier, Anil, who was scheduled to depose in the court on July 26, had moved a plea for exemption from personal exemption on the grounds that he has "pre-scheduled" business engagements.
The court had on July 25 allowed his plea and had directed him to appear before it on August 22 for recording of his testimony.