Delhi Police today said that the death of Sunanda Pushkar, the wife of former Union Minister, Shashi Tharoor, was unnatural and caused by poisoning. Briefing reporters in New Delhi, Police Commissioner B S Bassi said that the medical board's report has confirmed that Sunanda's death occurred either through oral consumption of poison, or through an injection. He said that the police have registered a case of murder against an unknown person.

Mr. Bassi said all concerned persons, including Mr. Shashi Tharoor will be questioned in the case. Sunanda Pushkar was found dead at a hotel in Delhi in January last year.