New Delhi, Jan 07 (ANI): A medical report on Congress leader Shashi Tharoor's wife Sunanda Pushkar's death case says that she was poisoned. Delhi Police Commissioner BS Bassi said on Tuesday that the medical report submitted to the police says that her death was unnatural, due to poisoning. Bassi said that a murder case has been registered in the matter and proper investigation shall be conducted. He also said that the relevant witnesses have been examined earlier and they can be examined or enquired again if required. Pushkar died under mysterious circumstances last year and was found dead at a hotel room.