1757 – Battle of Plassey
1773 – Regulating Act passed
1782 – Treaty of Salbai (ended First Anglo-Maratha War)
1784 – Pitt’s India Act enacted
1793 – Permanent Settlement introduced
1798 – Subsidiary Alliance introduced by Lord Wellesley
1799 – Fourth Anglo-Mysore War
1802 – Treaty of Bassein signed
1813 – Charter Act ended Company’s trade monopoly (except tea & China trade)
1829 – Abolition of Sati by Lord William Bentinck
1833 – Charter Act abolished Company monopoly over tea & China trade
1835 – English Education Act (Macaulay)
1843 – Abolition of slavery in British India
1845 – First Anglo-Sikh War began
1848–49 – Second Anglo-Sikh War (Annexation of Punjab)
1848 – Doctrine of Lapse introduced
1854 – Wood’s Despatch (University Act)
1855 – Santal Rebellion
1856 – Hindu Widow Remarriage Act
1857 – Revolt of 1857 / Establishment of Universities (Calcutta, Bombay, Madras)
1858 – Queen’s Proclamation
1860 – Indian Penal Code completed
1861 – Indian Councils Act / ICS opened to Indians
1862 – First Indians included in Viceroy’s Council
1865 – Indian Forest Act
1870 – Poona Sarvajanik Sabha founded
1872 – First Census / Indian Evidence Act / Indian Contract Act
1876 – Indian Association founded
1877 – Queen Victoria proclaimed Empress of India
1878 – Vernacular Press Act / Arms Act / First Famine Commission
1879 – Statutory Civil Service introduced
1880 – Famine Commission (Strachey)
1881 – First Indian Factories Act
1882 – Local Self-Government Reforms (Ripon)
1883 – Ilbert Bill Controversy / National Conference (Banerjee)
1885 – Indian National Congress founded / First INC Session
1891 – Age of Consent Act
1892 – Indian Councils Act enlarged representation
1896 – Plague epidemic in Bombay
1897 – Colonial Expenditure Commission
1900 – Bangalore Session of INC (early Swadeshi resolution)
1901 – Indian Railways Board formed
1905 – Partition of Bengal announced / Swadeshi Movement launched
1906 – Muslim League founded / Satyagraha first used (South Africa) / Barisal Conference disrupted
1907 – Surat Split
1908 – Alipore Bomb Case
1909 – Morley-Minto Reforms / Assassination of Curzon Wyllie
1910 – Indian Press Act
1911 – Reversal of Bengal Partition / Delhi became Capital
1913 – Ghadar Party founded
1916 – Home Rule League / Lucknow Pact
1917 – Montagu’s August Declaration / Champaran Satyagraha / Sabarmati Ashram
1918 – Ahmedabad Mill Strike / Kheda Satyagraha
1919 – Rowlatt Act / Jallianwala Bagh / Hunter Commission / Khilafat Movement
1920 – Non-Cooperation Movement / AITUC / CPI formed
1921 – Visva-Bharati founded / Prince of Wales Boycott
1922 – Chauri Chaura Incident / Withdrawal of NCM
1923 – Swaraj Party formed
1925 – Kakori Conspiracy
1927 – Simon Commission appointed / Jinnah-Nehru Proposal
1928 – Simon Commission arrived / Bardoli Satyagraha / HSRA founded / Nehru Report
1929 – Lahore Congress (Purna Swaraj) / Irwin’s Declaration
1930 – Dandi March / Civil Disobedience Movement / First Round Table Conference / Chittagong Armoury Raid
1931 – Gandhi-Irwin Pact / Second Round Table Conference / Execution of Bhagat Singh
1932 – Poona Pact / Communal Award / Third Round Table Conference
1933 – Harijan Sevak Sangh founded
1935 – Government of India Act / RBI established
1937 – Provincial Elections
1939 – Forward Bloc founded
1940 – Lahore Resolution / August Offer / Individual Satyagraha
1942 – Quit India Movement / Cripps Mission
1943 – INA revived / Bengal Famine
1944 – Rajagopalachari Formula
1945 – Wavell Plan / Simla Conference / INA Trials began
1945–46 – INA Trials / RIN Revolt
1946 – Cabinet Mission / Interim Government / Constituent Assembly first met
1947 – Mountbatten Plan / Attlee’s Declaration / Radcliffe Commission / Independence Act / National Flag adopted
1948 – Gandhi assassinated / Operation Polo / Gandhi’s last fast
1949 – Constitution adopted
1950 – Constitution came into force / India became Republic / Planning Commission
1951 – First Five-Year Plan
1951–52 – First General Elections
1952 – First Lok Sabha constituted
1954 – Pondicherry merged / Panchsheel Agreement
1956 – States Reorganisation Act / Delhi became UT / LIC established
1959 – Panchayati Raj introduced
1960 – Formation of Gujarat & Maharashtra
1961 – Goa Liberation / DIC concept introduced
1962 – Indo-China War
1965 – Indo-Pak War / Green Revolution
1969 – Bank Nationalisation (first phase)
1971 – Indo-Pak War / Bangladesh Liberation
1972 – Simla Agreement
1973 – Chipko Movement
1975 – Emergency imposed
1976 – 42nd Constitutional Amendment
1977 – Janata Party Government
1978 – Right to Property removed as Fundamental Right
1980 – Mandal Commission Report submitted
1984 – Operation Blue Star / Bhopal Gas Tragedy / Rajiv Gandhi became PM / Anti-Sikh Riots
1985 – Assam Accord / Shah Bano Judgment
1991 – New Economic Policy
1992 – Babri Masjid Demolition
1998 – Pokhran-II Nuclear Tests
1999 – Kargil War
2005 – Right to Information Act
2009 – Right to Education Act
2017 – GST implemented
2019 – Article 370 revoked / Citizenship Amendment Act