The prosecution had sought 15-day police custody for Aseemanand, but the additional chief metropolitan magistrate allowed the CBI to interrogate him for a week beginning Saturday.
Magistrate K Sudhakar, in his order, noted that the 59-year-old accused had earlier said he had no objection to police remand.
The absconding Swami, whose real name is Naba Kumar Sarkar, was arrested by the CBI on November 19 from Haridwar in connection with the blast at the historic masjid in Hyderabad on May 18, 2007. Nine persons were killed in the explosion.
The magistrate had earlier asked the CBI to specify its reasons for seeking custody of Aseemanand after the defence opposed the central agency's application on the ground that it had already questioned him and did not specify any reason for his further interrogation.
The CBI then submitted a case diary file in the court detailing the status of the probe and reasons for seeking the custody of the accused, who is in judicial remand till November 30 and lodged in a special cell at the Chenchalguda central prison in Hyderabad.
