- Several Indian Presidents have previously served as Vice President (e.g., S. Radhakrishnan, Zakir Hussain, V.V. Giri, R. Venkatraman, Shankar Dayal Sharma, Hamid Ansari). - Some Presidents have come from other backgrounds, such as Chief Justice of India (M. Hidayatullah - acting), scientists (A.P.J. Abdul Kalam), or political leaders who held other offices (Rajendra Prasad, Fakhruddin Ali Ahmed, Neelam Sanjiva Reddy, Pratibha Patil, Pranab Mukherjee, Ram Nath Kovind, Droupadi Murmu).