Jiah was found hanging in her flat here on June 3, 2013. She was 25.
Her mother, Rabiya, had moved an application last month seeking access to the Blackberry messages exchanged between her daughter and Sooraj.
As per the reply filed in the court by special CBI prosecutor Rajendra Bhatnagar today, Sooraj's mobile phone was sent to forensic laboratory where experts said the messages could not be retrieved.
However, Special judge Shaeeda Razvi said Rabiya cannot make such request as she does not have a locus standi.
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In October 2013, Rabiya moved the Bombay High Court alleging that Jiah had been murdered and sought a CBI probe, which was granted.
During the probe, CBI charged Sooraj (25) with abetment of suicide of Jiah.
As per the chargesheet filed in the court earlier, Jiah had left the house of Sooraj on morning of the incident.
According to the CBI, Sooraj, son of actor couple Aditya Pancholi and Zarina Wahab, had hidden facts and fabricated information during his questioning.
Sooraj had refused to be part of any scientific tests like polygraph or brain mapping which the agency wanted to conduct on him.
According to the CBI, Jiah had purportedly written a suicide note wherein she narrated about her intimate relationship, physical abuse and mental and physical torture allegedly experienced at the hands of Sooraj.
The three-page note was seized by the Mumbai police on June 10, 2013.