The Sub-Divisional Magistrate, probing the death of Sunanda Pushkar, on Tuesday directed the police to investigate the case thoroughly including the murder and suicide angles after he categorically pin-pointed "poisoning" as the reason behind the sensational demise.
Significantly, Alok Sharma, the SDM in his report, said no family member of Sunanda doubted any foul play in her death, the sources said.
Doctors at AIIMS who conducted autopsy on Sunanda had said her death was "sudden and unnatural" and it was caused by "drug overdose" which in other words could be called drug poisoning.
52-year-old Sunanda was found dead in a 5-star hotel in South Delhi on Friday night, a day after her twitter spat with Pakistani journalist Mehr Tarar over an alleged affair with Tharoor.
AIIMS sources said the autopsy report submitted to the SDM mentioned about over a dozen injury marks on both hands of Sunanda and a minor bruise on her left cheek which could be due to use of "blunt force". The report, however, ruled out death due to the injuries. The autopsy report also said no food samples were found in Sunanda's stomach which according to doctors suggested that "she had not been eating".
Police sources said two strips of anti-depressant drug alprazolam, commonly known as alprax, were found in the hotel suite where she was found dead.