Sources said a post-mortem would be carried out around noon by a team of doctors and the report could be available later in the evening. The body of 52-year-old Pushkar was taken from the Leela Palace Hotel to AIIMS at around 3:30 am, sources said.
Pushkar, who was upset over an alleged extra-marital affair between her minister husband Shashi Tharoor and a Pakistani journalist, was found dead in the hotel on Friday night.
Police had on Friday night questioned the hotel staff and checked the CCTV footage of the lobby of the third floor of the luxury hotel where she was staying.
Sources in police said call details record of Pushkar was also being checked as part of the probe into her death.
Pushkar was found dead inside the suite no 345 in the hotel where she and her husband had checked in on Thursday. Investigators said that they are screening the call details record of Pushkar as well as her tweets in the last few days.

They said a number of hotel staff, including those who had gone to the suite, was being questioned to corroborate the version of Tharooor and his staff.
The police is thoroughly searching the suite to see whether Pushkar had used any medicine. Police sources speaking on condition of anonymity said they suspect it could be a case of suicide.

Pushkar and Tharoor were at the centre of a raging controversy when reports emerged that she was upset over reported text and tweet messages between her husband and Mehr Tarar, a Pakistani journalist.

A joint statement from the couple on Thursday said that they were "happily married" but distressed by "some unauthorized tweets".


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