The correct answer is Morley - Minto Act, 1909 Explanation & Key Takeaways: • Morley - Minto Act, 1909 declared Delhi as the capital of British India, replacing Calcutta. • This act is also known as the Indian Councils Act 1909. • The decision to shift the capital was announced by King George V during the Delhi Durbar in December 1911. • The shift was officially implemented in 1912. • The move aimed to have a more centrally located capital and to placate the growing political unrest in Bengal. Related Concepts: • The Government of India Act, 1858 marked the end of the East India Company's rule in India and transferred control to the British Crown. • The Government of India Act, 1935 provided for provincial autonomy and the establishment of a federal government in India. • The Montagu Chelmsford Act, 1919, also known as the Government of India Act 1919, introduced a dual system of governance (dyarchy) in the provinces. • Delhi was chosen for its strategic location and historical significance as a seat of power in India. • The shift of the capital was a significant event in the history of British India, symbolizing administrative and political changes.