The samples of Sunanda Pushkar were sent to US investigation agency's lab in Washington to figure out the exact reasons behind her death. Nine months later, A detailed report was delivered in a sealed envelope. The FBI report ruled out the theory 'Radioactive poisoning led to Sunanda Pushkar's death'. It also adds Viscera samples were well within the permissible limit and hence they can't lead to death.
Radioactive Isotopes detected in Sunanda Pushkar's body can't be detected in Indian labs during the postmortem. The report says Isotopes might have been generated by a druf which was consumed orally or injected. These findings could influence the investigation of the sensational case. Sunanda Pushkar was found dead in her hotel room nearly 2 years ago. Her hubby Shashi Tharoor was under the scanner of Police ever since this tragedy happened.