A day after sensational twist to the death of Shashi Tharoor’s wife Sunanda Pushkar, Delhi Police chief BS Bassi on Wednesday said they have formed an SIT to probe the Sunanda Pushkar case.“In order to do a proper investigation in this case, we have made a special team. This special investigation team will be closely monitored by Additional DCP (South). One inspector and a SHO of Sarojini Nagar are also a part of this SIT. All these people will collectively take forward the investigation,” said Bassi.“I assure that I will share with you all the necessary information required. There is no need to worry about that. The moment any relevant thing will come before us, you will be informed about that,” he added.Bassi also said that the police is as of now is proceeding according to the action plan, and added that every aspect is being examined carefully.“As far as questioning is concerned, whatever is necessary will be been done. The reports we earlier received from the medical board was an interim report. After that some clarifications were demanded and were given accordingly,” he said.“Later, on the basis of the opinion by the doctors, warranted investigation was done. Now, after filing the case, all the necessary investigation will be done. The evidence that we have to collect and the talk that needs to done will be completed according to the investigation plan we have made,” he added.Bassi further assured the media that all necessary information would be shared in a timely manner.On Tuesday, Delhi Police had registered a murder case on the basis of a medical report that concluded her death was unnatural and due to poisoning but nobody has been named as a suspect as yet.Delhi Police Chief does not rule out questioning her husband, now a Congress MP and a former Union Minister Shashi Tharoor, saying “whatever necessary will be done.”Nearly a year after 51-year-old Sunanda was found dead in a luxury hotel here on January 17, Delhi Police filed the case of murder under section 302 of the IPC but no one has been named in the FIR.The medical board of AIIMS submitted a fresh report to the police on December 29 and stated that it was the injection, suspected of polonium, that may have led to Sunanda’s death. The report clearly stated it was an unnatural death.In its report AIIMS medical board had said, “The cause of death in this case is poisoning. Viscera are positive for ethyl alcohol, caffeine, acetaminophen and cotinine.” From the medical document made available to them the panel has also concluded that Sunanda did not have cardiac problem. She was not suffering from any diseases like hypertension, diabetes or tuberculosis.The panel has concluded that Sunanda was neither ill nor had any disease prior to her death. She was a normal healthy individual.The medical board had examined all the injuries on her body out of which ‘injury number 10’ has been termed as a mark caused by the needle of a syringe.The team has also dismissed the theory that Sunanda died of an overdose of Alprazolam as the viscera report is negative for the presence of the substance.Sunanda was found dead in a 5-star hotel in South Delhi on the night of January 17, a day after her Twitter spat with Pakistani journalist Mehr Tarar over an alleged affair with Tharoor.The probe into the case was handed over to the Crime Branch on January 23. However, the case was transferred back to the South District police two days later on January 25.