Investigators probing the mysterious death of Sunanda Pushkar may again question her husband and Congress MP Shashi Tharoor and move court soon seeking lie detector test on him even as a long-awaited FBI report of her viscera samples said she died of poison.
Sources in Delhi police said court’s permission to conduct a polygraph test on Tharoor is likely to be sought soon.
The investigators have so far conducted polygraph test on six persons, all prime witnesses in the case, including Tharoors’ domestic help Narayan Singh, driver Bajrangi and Sanjay Dewan, a close friend of the couple. Three others -- S K Sharma, Vikas Ahlawat and Sunil Takru, had also undergone the polygraph test.
Tharoor was not subjected to the test but was questioned thrice in the case. 52-year-old Sunanda was found dead in a five-star hotel suite on January 17 last year, a day after she was involved in a spat with Pakistani journalist Mehr Tarar on Twitter over the latter’s alleged affair with Tharoor.
The sources said Tharoor is likely to be questioned again as the eight-page FBI report of Sunanda’s viscera brought to fore certain details crucial to the probe. The police will soon submit the report to court.
The report received via e-mail on Tuesday, suggested that Sunanda died of some poison, which they have named, said sources. However, police have so far refused to disclose the type of poison mentioned in the report.
Delhi Police Commissioner B S Bassi said the report from the Washington DC-based laboratory of FBI would soon be handed over to a medical board for examination.
“The FBI lab had conducted analysis of various substances. And this should give an indication (as to the reason behind her death) once the doctors go through the report,” said Bassi.
The report has ruled out the theory of the variant of a radioactive element named Polonium having caused Sunanda’s death, Bassi said, adding that radiation levels in her viscera samples were “within the standard safety norms”.
Analysis of the report shall take time and, even after submission in court, it shall only be shared once all the legal issues connected with it have been studied, he said.
The viscera samples were sent to the FBI lab in Washington DC in February to determine the kind of poison that killed Sunanda after an AIIMS medical board identified poisoning as the reason behind her death but did not mention any specific substance.
The police are also expecting a more detailed version of the report in the next few days, said sources.
Reacting to the developments, AIIMS forensic head Sudhir Gupta stuck to his opinion that poisoning was the cause of death. He added that the “domain is much more large”, when specifically asked whether Polonium-210, a radioactive isotope, had caused the death.
“There are findings that confirm that the death was due to poisoning. We concluded by eliminating the other causes of her death,” Gupta said.
In January, police had claimed that Sunanda was poisoned, and registered a murder case against unknown persons.
The police team probing the case has so far questioned at least 15 people. Tharoor, his staff members and close friends were among those questioned by Delhi Police.
Sunanda’s son Shiv Menon was quizzed by the SIT on February 5. Police sources had said that Menon was asked about the relationship between Tharoor and Sunanda.