Title: List of vice presidents of India
Content:  1950. The first vice president of India, Sarvepalli Radhakrishnan, took oath at Rashtrapati Bhavan on 13 May 1952. He later served as the president. Following the death of Zakir Husain in 1969, V. V. Giri resigned from the post of vice president to contest the presidential election and got elected. Out of 13 vice presidents, six of them later went on to become the president. Krishna Kant has been the only one to die during his tenure. On 11 August 2017, Venkaiah Naidu was sworn in as the 13th vice president of India. He is also the first vice-president to be born after Independent India is formed.
Title: List of vice presidents of India
Content: Timeline 
Title: List of presidents of India
Content:  Sanjiva Reddy, who later became president. Two presidents, Zakir Husain and Fakhruddin Ali Ahmed, have died in office. Their vice presidents served as acting presidents until a new president was elected. Following Zakir Husain's death, two acting presidents held office until the new president, V. V. Giri, was elected. When Giri resigned to take part in the presidential elections, he was succeeded by Mohammad Hidayatullah as acting president. The 12th president, Pratibha Patil, is the first woman to hold the office, elected in 2007. On 25 July 2017, Ram Nath Kovind took office as the 14th president of India.
Title: 1962 Indian vice presidential election
Content:  The 1962 Indian vice presidential election was held in 7 May 1962 to elect Vice-President of India. Zakir Husain was elected for the post. This was the first contested election for Vice Presidency in India, as the first two elections were uncontested, with Sarvepalli Radhakrishnan being the only candidate. He won against N. C. Samantsinhar by a landslide.
Title: List of presidents of India
Content:  acting presidents have also been in office for short periods of time. Varahagiri Venkata Giri became the acting president in 1969 after Zakir Husain, died in office. Giri was elected president a few months later. He remains the only person to have held office both as a president and acting president. Rajendra Prasad, the first president of India, is the only person to have held office for two terms. Seven presidents have been members of a political party before being elected. Six of these were active party members of the Indian National Congress. The Janata Party has had one member, 
Title: Presidency of Ram Nath Kovind
Content:  six countries, Madagascar, Equatorial Guinea, Eswatini, Croatia, Bolivia and the Republic of Guinea. Just a few weeks after starting his presidency, Venkaiah Naidu, the BJP candidate for vice president won the 2017 Indian vice presidential election; President Kovind administered the oath of the office. In 2019, he administered the oath of office to Narendra Modi upon his re-election. He has held the office during the COVID-19 pandemic and subsequent lockdowns. He is the first leader from Rashtriya Swayamsevak Sangh to occupy the office of president of India. He appointed Dipak Mishra, Ranjan Gogoi, Sharad Arvind Bobde and N. V. Ramana as chief justice of the Supreme Court, and other judges of the Supreme Court and the High Courts.
Title: 1975 in India
Content: [[File:Photograph of Sarvepalli Radhakrishnan presented to First Lady Jacqueline Kennedy in 1962.jpg|thumb|155x155px|Dr. Sarvepalli Radhakrishnan]]17 April – Sarvepalli Radhakrishnan, philosopher and statesman, first Vice President of India and second President of India (b. 1888). 
Title: Rajendra Prasad
Content:  Two and a half years after independence, on 26 January 1950, the Constitution of independent India was ratified and Prasad was elected the nation's first president. Unfortunately, on the night of 25 January 1950, a day before the Republic Day of India, his sister Bhagwati Devi died. He arranged her cremation but only after his return from the parade ground. As President of India, Rajendra Prasad duly acted as required by the Constitution, independent of any political party. He travelled the world extensively as an ambassador of India, building diplomatic rapport with foreign nations. He was re-elected for two consecutive terms in 1952 and 1957, and is the only President of India to achieve this feat. The Mughal Gardens at the Rashtrapati Bhavan were open to public for about a month for the first time during his tenure, and since then it has been 
Title: V. V. Giri
Content:  Giri was elected the third vice president of India on 13 May 1967, a post he held for nearly two years till 3 May 1969. Giri was the first vice president to not complete his full term in office on account of being elevated to the office of the president and was the third vice president to be elected to the presidency. Following the death in office of President Zakir Hussain on 3 May 1969, Giri was sworn in as acting president the same day. Giri resigned from his post on 20 July 1969 to contest the presidential elections as an independent candidate. Immediately before resigning, Giri, in his capacity as acting president, promulgated an ordinance that nationalised 14 banks and insurance companies. He was succeeded as acting president by Mohammad Hidayatullah, the Chief Justice of India.
Title: 2012 Indian vice presidential election
Content:  The 2012 Indian Vice-Presidential election was held on 7 August 2012 to elect the Vice-President of India. Mohammad Hamid Ansari was the incumbent and the UPA candidate. The other prime candidate was the NDA's Jaswant Singh. Ansari then reelected as Vice-President. In doing so, he became the first VP to be reelected since Sarvepalli Radhakrishnan in 1957.

Question: the first vice president of india who become the president letter was?
Answer: Sarvepalli Radhakrishnan.