In the last hearing before the sessions judge, Srivastava had orally challenged the interim order and informed the court that he needs to share some documents with third persons for advice but is unable to proceed because of the order.
The magistrate's court had on February 4 committed the case to sessions for trial.
Congress leader Shashi Tharoor's wife Pushkar was found dead under mysterious circumstances in a suite of a Delhi hotel on the night of January 17, 2014. The couple were staying in the hotel as their house was undergoing renovation.
Tharoor has been charged under Sections 306 (abetment of suicide) and 498A (husband or his relative subjecting a woman to cruelty) of the Indian Penal Code (IPC). He, however, has dismissed the charges as "preposterous.
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