| Year | Key Historic Milestone |
|---|
| 1757 | Battle of Plassey — British political foothold established in Bengal. |
| 1764 | Battle of Buxar — Decisive British victory over triple alliance. |
| 1765 | Treaty of Allahabad; Grant of Diwani Rights to EIC; Dual Government in Bengal. |
| 1793 | Permanent Settlement introduced in Bengal by Cornwallis. |
| 1798 | Lord Wellesley introduces Subsidiary Alliance (Hyderabad 1st). |
| 1829 | Abolition of Sati Regulation XVII under Bentinck and Rammohan Roy. |
| 1853 | First Railway Line (Bombay to Thane); Telegraph line; Charter Act 1853. |
| 1857 | Great Revolt of 1857 begins at Meerut/Delhi. |
| 1858 | Queen Victoria’s Proclamation; Government of India Act 1858 (Crown Rule). |
| 1878 | Vernacular Press Act & Arms Act passed by Lord Lytton. |
| 1885 | Formation of Indian National Congress at Bombay. |
| 1905 | Partition of Bengal; Swadeshi & Boycott Movement launched. |
| 1907 | Surat Split in Congress. |
| 1909 | Morley-Minto Reforms; Separate Electorates for Muslims. |
| 1916 | Lucknow Pact; Home Rule League launched by Tilak & Annie Besant. |
| 1919 | Rowlatt Act, Jallianwala Bagh Massacre, Montagu-Chelmsford Reforms. |
| 1920–22 | Non-Cooperation Movement & Khilafat Movement; Chauri Chaura (1922). |
| 1928 | Simon Commission Boycott; Nehru Report. |
| 1930–34 | Dandi March & Civil Disobedience Movement; Round Table Conferences. |
| 1932 | Communal Award & Poona Pact. |
| 1935 | Government of India Act 1935 passed. |
| 1942 | Cripps Mission; Quit India Movement launched ("Do or Die"). |
| 1945–46 | INA Trials at Red Fort; RIN Mutiny; Cabinet Mission Plan. |
| 1947 | Mountbatten Plan (June 3); Indian Independence Act; Independence & Partition (Aug 15). |