New Delhi, July 04 (ANI): A PIL was filed in Supreme Court over Sunanda Pushkar death case demanding CBI probe. The petitioner lawyer in the case said that there are instances in the case which needs free investigation, that is, Dr Sudhir Gupta complaining of pressure in creating autopsy report and delay in case by Delhi police. He continued that Pushkar was to expose people involved in IPL case before she was _murdered_, and that it also happened a day before she called Pakistani journalist and ISI agent.