Days after the FBI report concluded that the death of Sunanda Pushkar was due to poisoning, her widower and former Union Minister Shashi Tharoor today claimed that he has "plenty" to say on the case but would await the ongoing probe to end.

"Let me say this for the last time, I will not comment on this matter, as a matter of policy as well as principle, until the police have concluded investigation," Tharoor said on the sidelines of the ongoing Jaipur Literature Festival here.

"Once the police have done so, come to a conclusion and presented it to a court, I will have plenty to say. But till then it will be wrong to do so and I will not do so," he said.

In January last year, the Delhi Police had registered a case of murder in connection with the death of Sunanada.

An All India Institute of Medical Science (AIIMS) medical board had found poisoning as the reason for her death following which the police had sent her viscera samples to an FBI lab in Washington last year.

The AIIMS medical board gave its opinion based on the FBI report that Sunanda died of "poisoning".

51-year-old Sunanda was found dead at a suite in a five-star hotel in south Delhi on the night of January 17, 2014, a day after her spat with Pakistani journalist Mehr Tarar on Twitter over her alleged affair with Tharoor.