- Sarvepalli Radhakrishnan served as the first Vice President (1952-1962) and the second President (1962-1967). - Zakir Hussain served as the third Vice President (1962-1967) and the third President (1967-1969). - K.R. Narayanan served as the ninth Vice President (1992-1997) and the tenth President (1997-2002). - Neelam Sanjiva Reddy served as the sixth President of India (1977-1982). He held other prominent positions like Chief Minister of Andhra Pradesh and Speaker of the Lok Sabha, but he never served as the Vice President of India.