Sunanda Pushkar, the deceased wife of Congress MP Shashi Tharoor, had died from poisoning, according to the final post-mortem report.
Speculations have been rife around Sunanda's death ever since she was found dead under mysterious circumstances in a Delhi hotel on 17 January.
The new report submitted by the Department of Forensic Medicine and Toxicology of the All India Institute of Medical Sciences, said the cause of Pushkar's death was poisoning. This negates the earlier argument that Pushkar died from a drug overdose, and states that the anti-anxiety drug Alprax that she consumed was not lethal enough to kill her.
The report also puts Tharoor in the dock, as it states that contrary to his claims that his wife was suffering from Lupus, a chronic inflammatory disease, she in fact had no such ailment. She is said to have been "healthy, with no disease of heart, kidney, liver or lung," the report said.
The final post-mortem report was submitted to the Delhi police on 30 December and also highlighted several lapses by the police in not submitting crucial documents and even the bedsheet and mattress from the hotel room where Pushkar was found dead.
While the specific poison that may have killed Pushkar has not been named, a few poisons have been listed, including thallium, polonium, heroin, nerium oleander and some others, as reported by The Times of India.
According to the report, one of the 15 injury marks, found on Pushkar's body, is from a needle.
With the new revelation coming out, the Delhi police are expected to file an FIR and renew investigation in the case.
The police have not yet registered a murder case as no such complaint has been made by any of Pushkar's family. However, after the postmortem report came out, some of Pushkar's family members alleged that her death was "pre-planned" and have called for a CBI probe.