Varahagiri Venkata Giri (10 August 1894 – 24 June 1980) was an Indian politician and activist from Berhampur in Odisha who served as the fourth president of India from 24 August 1969 to 24 August 1974. He also third vice president of India from 13 May 1967 to 3 May 1969. He is the first president to be elected as an independent candidate.He was succeeded by Fakhruddin Ali Ahmed as president in 1974. After the end of his full term, Giri was honoured by the Government of India with the Bharat Ratna in 1975. Giri died on 24 June 1980.

Zakir Husain Khan (8 February 1897 – 3 May 1969) known as Dr. Zakir Husain, was an Indian educationist and politician who served as the third president of India from 13 May 1967 until his death on 3 May 1969.

Sarvepalli Radhakrishnan OM (5 September 1888 – 17 April 1975), natively Radhakrishnayya, was an Indian philosopher and statesman. He served as the second president of India from 1962 to 1967. He was also the first vice president of India from 1952 to 1962. He was the second ambassador of India to the Soviet Union from 1949 to 1952. He was also the fourth vice-chancellor of Banaras Hindu University from 1939 to 1948 and the second vice-chancellor of Andhra University from 1931 to 1936.

Rajendra Prasad (3 December 1884 – 28 February 1963) was an Indian politician, lawyer, Indian independence activist, journalist & scholar who served as the first President of India from 1950 to 1962. He joined the Indian National Congress during the Indian Independence Movement and became a major leader from the region of Bihar and Maharashtra.