1. Rajendra Prasad | 26-Jan-1950 to 13-May-1962  | Indian National Congress

2. Sarvepalli Radhakrishnan | 13-May-1962 to 13-May-1967 | Independent

3. Zakir Hussain | 13-May-1967 to 3-May-1969  | Independent

(Acting president) Varahagiri Venkata Giri | 3-May-1969 to 20-Jul-1969 | Independent

(Acting president) Muhammad Hidayatullah | 20-Jul-1969 to 24-Aug-1969 | Independent

4. Varahagiri Venkata Giri | 24-Aug-1969 to 24-Aug-1974 | Independent

5. Fakhruddin Ali Ahmed | 24-Aug-1974 to 11-Feb-1977 | Indian National Congress

(Acting president) Basappa Danappa Jatti | 11-Feb-1977 to 25-Jul-1977 | Independent

6. Neelam Sanjiva Reddy | 25-Jul-1977 to 25-Jul-1982 | Janata Party

7. Giani Zail Singh | 25-Jul-1982 to 25-Jul-1987  | Indian National Congress

8. Ramaswamy Venkataraman | 25-Jul-1987 to 25-Jul-1992 | Indian National Congress

9. Shankar Dayal Sharma | 25-Jul-1992 to 25-Jul-1997 | Indian National Congress

10. Kocheril Raman Narayanan | 25-Jul-1997 to 25-Jul-2002 | Independent

11. A. P. J. Abdul Kalam | 25-Jul-2002 to 25-Jul-2007 | Independent

12. Pratibha Patil | 25-Jul-2007 to 25-Jul-2012  | Indian National Congress

13. Pranab Mukherjee | 25-Jul-2012 to current president  | Indian National Congress

HOW TO EASILY REMEMBER THEIR NAMES IN SEQUENCE 

Here is a short, poem-like thing which is really easy to remember.

RAJ KI RADHA

ZAKIR KI V.V.

ALI KI JATTI

SANJEEV REDDI

ZAIL GAE RAMAN

SHANKAR KA NARA

ABDUL HAMARA

PRATIBHA KO PYARA

PRANAV MUKHARJI

P.S -> I don't know the actual source of it. If It's your creation then please let me know.