Sunanda Pushkar, wife of Shashi Tharoor, MP, died because of the presence of “poison” in the body, says the final post-mortem report.

The finding will pave the way for the Delhi Police to register a First Information Report against unknown persons and take up the investigation again.

The final report, prepared by the Department of Forensic Medicine and Toxicology of the All India Institute of Medical Sciences after studying the viscera report, says Sunanda’s death was caused by “poison” and not by an “overdose of Alprax.” This contradicts the preliminary report, which said “Alprax” was detected in the body.

The report, which says Sunanda had no ailments, was submitted to the Station House Officer of Sarojini Nagar Police station on September 30. “The report only says ‘poison’ in the body. The Medical Board has reserved comments on the specific poison,” a source said.

The report also raises queries on the police investigation so far. “Opinion on the duration of the injuries has been given already. However, the reason for these physical injuries, circumstantial evidences and statements have not been submitted by the Investigation Officer despite sending a letter in this regard on April 4, 2014,” it adds.