New Delhi, Jan 21 (ANI): Minister of State for Human Resource Development (HRD) Shashi Tharoor has been given a clean chit in his wife Sunanda Pushkar's death probe. The autopsy report of Sunanda Pushkar was given to the Sub-Divisional Magistrate Alok Sharma by All India Institute of Medical Sciences (AIIMS) stating drug overdose may have caused her death.