The only president who occupied office of president for two times: Dr. Rajendra Prasad
President of Indian Republic from 1950 to 1952: Dr. Rajendra Prasad
The only two presidents that died in office: Zakir Hussain (1969) & Fakarauddin Ali Ahmed (1977)
If the posts of President and vice-president lie vacant, Chief justice of India works as President. This situation happened in 1969 when Chief justice M Hidayutalla was appointed as president of India
Neelam Sanjeev Reddy was the only candidate elected unopposed.
Pratibha Devisingh Patil is the first women president of India.
President submits his resignation to Vice President and vice versa.
President of India enjoys complete immunity from criminal proceedings during his tenure.
However civil proceedings may be initiated against him by giving prior notice.