India acquired independence on 15 August 1947 though sections of the country were carved out and stitched together to create another new country, Pakistan. The “institutional” road to independence was perhaps laid down by the Government of India Act of 1935, where the gradual emergence of India as a self-governing entity had first been partly envisioned.
Following India's independence in 1947, the Constituent Assembly deliberated over the precise constitutional future of India. On 26 January 1950, India became a Republic, and the Constitution of India was promulgated.
Jawaharlal Nehru had become the country’s first Prime Minister in 1947, and in 1952, in the country’s first general election with a universal franchise, Nehru led the Indian National Congress to a clear victory. The Congress had long been the principal political party in India, providing the leadership to the struggle for independence, and under Nehru’s stewardship it remained the largest and most influential party over the next three decades. In 1957, Nehru was elected to yet another five-year term as a member of the Lok Sabha and chosen to head the government. His ‘regime’ was marked by the advent of five-year plans, designed to bring big science and industry to India; in Nehru's own language, steel mills and dams were to be the temples of modern India. Relations with Pakistan remained chilling, and the purported friendship of India and China proved to be something of a hoax. China’s invasion of India's borders in 1962 is said to have dealt a mortal blow to Nehru.
Nehru was succeeded at his death on 27 May 1964 for a period of two weeks by Gulzarilal Nanda (1898-1998), a veteran Congress politician who became active in the non-cooperation movement in 1922 and served several prison terms, principally in 1932 and from 1942-44 during the Quit India movement. Nanda served as acting Prime Minister until the Congress had elected a new leader, Lal Bahadur Shastri, also a veteran