The document provides a summary of the key acts and developments in India's constitutional history under British rule and after independence. It discusses acts like the Regulating Act of 1773, Pitt's India Act of 1784, the Charter Acts of 1833 and 1853, the Government of India Acts of 1858, 1861, 1909, 1919 and 1935. It also discusses the Simon Commission of 1927, the Communal Award of 1932, the Poona Pact, and finally the Indian Independence Act of 1947 which led to the creation of independent India and Pakistan on August 15, 1947. The constitutional developments laid the foundation for India's post-independence democratic constitution and political system.