NEW DELHI: The autopsy report of Sunanda Pushkar indicates that a poisonous reaction from a drug cocktail may have caused her death, police sources said on Wednesday. Apart from Alprax, an anti-depressant, traces of another medicine prescribed commonly for migraine conditions (Excedrin) have been found in her body, sources said, hinting at the possibility of a third medicine without naming it.

Sunanda's son, Shiv Menon , had said in a statement on Tuesday that her death resulted from a "wrong mix of different medications" combined with tension and media stress. He said he did not believe her husband, Shashi Tharoor , could have physically harmed her, let alone take her life. "They were very much in love and she was too strong a person to commit suicide. Her death was peaceful, she passed in her sleep. Please let her soul rest, I think there has been enough attention drawn towards her life," he said. But police said Tharoor may be asked to join the investigations.

A second medical opinion may be sought after a preliminary probe to ascertain whether an overdose of Alprax and Excedrin (which is a combination of three medicines) could result in death. Police are also going to seek medical opinion on these medicines' reaction with alcohol. "These findings have to be corroborated with her medical condition. She was extremely weak and was having very little food. It is possible that her body responded differently to the medicines. For us, the important point is whether she took these with the intention to end her life or these were administered to her. If it's a combination of medicines, the second theory seems unlikely," said a core member of the probe team.

The postmortem report from AIIMS, sources said, mentions some injuries on Sunanda's body-more than six injuries on her limbs, including a bite mark on her palm and abrasions. Police will rely on the viscera reports to ascertain the exact nature of the 'poison'. They have requested the central forensic laboratory to submit a report soon.

