Lal Bahadur Shastri in the context of "Indira Gandhi"

The Indian National Congress (INC), also known as the Congress Party, or simply the Congress, is a big tent political party in India. It is one of the two major Indian political parties alongside the Bharatiya Janata Party, and the oldest party in India. Founded on 28 December 1885, it was the first modern nationalist movement to emerge in the British Empire in Asia and Africa. From the late 19th century, and especially after 1920, under the leadership of Mahatma Gandhi, the Congress became the principal leader of the Indian independence movement. The Congress was one of the parties who led India to independence from the United Kingdom, and significantly influenced other anti-colonial nationalist movements in the British Empire.

The INC is a "big tent" party that has been described as sitting on the centre of the Indian political spectrum. The party held its first session in 1885 in Bombay where W.C. Bonnerjee presided over it. After Indian independence in 1947, Congress emerged as a catch-all, Indian nationalist and secular party, dominating Indian politics for the next 50 years. The party's first prime minister, Jawaharlal Nehru, led the Congress to support socialist policies by creating the Planning Commission, introducing Five-Year Plans, implementing a mixed economy, and establishing a secular state. After Nehru's death and the short tenure of Lal Bahadur Shastri, Indira Gandhi became the leader of the party. In the 17 general elections since independence, it has won an outright majority on seven occasions and has led the ruling coalition a further three times, heading the central government for more than 54 years. There have been six prime ministers from the Congress party, the first being Jawaharlal Nehru (1947–1964), and the most recent being Manmohan Singh (2004–2014). Since the 1990s, the Bharatiya Janata Party has emerged as the main rival of the Congress in both national and regional politics.

Kumaraswami Kamaraj (15 July 1903 – 2 October 1975), popularly known as Kamarajar was an Indian independence activist, politician, social reformer and statesman who served as the Chief Minister of Madras from 13 April 1954 to 2 October 1963. He also served as the president of the Indian National Congress between 1964–1967 and was responsible for the elevation of Lal Bahadur Shastri and later Indira Gandhi to the position of Prime Minister of India, because of which he was widely acknowledged as the "Kingmaker" in Indian politics during the 1960s. Later, he was the founder and president of the Indian National Congress (O).

Born as Kamatchi, Kamaraj had dropped out of school early and had little formal education. He became active in the Indian Independence movement in the 1920s and was imprisoned by the British Raj multiple times due to his activities. In 1937, Kamaraj was elected to the Madras Legislative Assembly after winning in the 1937 Madras Presidency Legislative Assembly election. He was active during the Quit India Movement in 1942, because of which he was incarcerated for three years till 1945.

The Bharat Ratna (Hindi pronunciation: [bʱaːɾət̪ ɾət̪n̪(ᵊ)]; lit. 'Jewel of India') is the highest civilian award of the Republic of India. Instituted on 2 January 1954, the award is conferred in recognition of "exceptional service/performance of the highest order", without distinction of race, occupation, position or gender. The award was originally limited to achievements in the arts, literature, science, and public services, but the Government of India expanded the criteria to include "any field of human endeavor" in December 2011. The recipients receive a Sanad (certificate) signed by the president and a peepal leaf-shaped medallion. Bharat Ratna recipients rank seventh in the Indian order of precedence.

The first recipients of the Bharat Ratna were: the former governor-general of the Union of India C. Rajagopalachari, the former president of the Republic of India Sarvepalli Radhakrishnan; and the Indian physicist C. V. Raman, who were honoured in 1954. Since then, the award has been bestowed upon 53 individuals, including 18 who were awarded posthumously. The original statutes did not provide for posthumous awards but were amended in January 1966 to permit them to honor former prime minister Lal Bahadur Shastri, the first individual to be honored posthumously. In 2014, cricketer Sachin Tendulkar, then aged 40, became the youngest recipient, while social reformer Dhondo Keshav Karve was the oldest recipient when he was awarded on his 100th birthday. Though usually conferred on India-born citizens, the award has been conferred on one naturalized citizen, Mother Teresa, and on two non-Indians: Abdul Ghaffar Khan (born in British India and later a citizen of Pakistan) and Nelson Mandela, a citizen of South Africa.