"On postmortem examination we can say that it is a case of unnatural sudden death. There were certain injury marks on the body but we can't divulge details at this point," said Sudhir Kumar Gupta, head of forensic sciences department at AIIMS.

"We will conclude our report and opinion in a couple of days," Gupta added.

A three-member team of senior doctors at AIIMS conducted postmortem on the body of Sunanda Pushkar even as police continued to probe various angles including suicide in the case.

Sudhir Gupta had informed earlier that the postmortem was videographed to ensure transparency in the procedure.

Sunanda Pushkar was found dead in her suite at the Leela Palace hotel on Friday evening and the body was shifted to the AIIMS at around 3:30am for postmortem.