| 1851 | First telegraph line in India is operational between Calcutta and Diamond Harbour. |
| 1853 | First train in India runs from Bombay to Thane. |
| 1857 | First war of Indian independence also called the Sepoy Mutiny by the British was fought between Indian kingdoms and the British East India Company. |
| 1881 | The first complete census of population conducted on a uniform basis throughout India. |
| 1885 | Formation of Indian National Congress by A.O. Hume, Dadabhai Naoroji, Dinshaw Wacha, W.C. Bonnerjee and others on 28 December. |
| 1905 | Partition of Bengal by Lord Curzon was announced in July and implemented in October. The partition was later annulled in 1911. Swadeshi Movement calling for boycott of foreign goods was launched in August. |
| 1909 | Indian Council Act popularly known as Minto Morley reforms allowing a limited increase in the involvement of Indians in governance passed. |
| 1911 | Visit of King George V to India, Shifting of capital from Calcutta to Delhi. Jana Gana Mana first sung at Calcutta session of INC. Launch of first air mail in India & World from Bumraulli to Allahabad. |
| 1919 | Government of India Act, 1919 introducing dyarchy, Rowlatt Act, Jallianwala Bagh tragedy. |
| 1920 | Khilafat movement, Launch of Non-cooperation movement. |
| 1922 | Chauri Chaura outrage in UP, Suspension of Non-cooperation movement. |
| 1928 | Visit of Simon Commission to India, Death of Lala Lajpat Rai |
| 1929 | Resolution of complete independence at Lahore session of Indian National Congress. |
| 1930 | Dandi March, Launch of the Civil Disobedience Movement. |
| 1931 | Gandhi Irwin pact, execution of Bhagat Singh, Sukhdev and Rajguru. |
| 1935 | Government of India Act. |
| 1942 | Quit India movement, Formation of Azad Hind Fauz. |
| 1943 | Visit of Cripps Commission to India. |
| 1946 | British Cabinet mission visited India. |
| 1947 | Independence and partition of India. |
| 1948 | Assassination of Mahatma Gandhi, 1st Pak aggression |
| 1950 | India became republic, Dr. Rajendra Prasad become the first President of India. |
| 1951 | 1st Five year plan was launched by the Indian Prime Minister Shri Jawaharlal Nehru. 1st Asian Games were held in Delhi in March. |
| 1952 | 1st General elections of independent India were held from October 1951 to February 1952. |
| 1954 | The Five Principles of Peaceful Co-existence also known as the Panchsheel was signed by India and China. |
| 1956 | Reorganisation of Indian states on linguistic basis, India's first nuclear reactor, Apsara, achieved criticality. |
| 1957 | Introduction of decimal system in currency |
| 1959 | First television service started in India in New Delhi. |
| 1961 | Liberation of Goa from the Portuguese |
| 1962 | Chinese aggression |
| 1964 | Death of Jawaharlal Nehru |
| 1965 | Second India Pakistan war was fought in September. |
| 1966 | Second Prime Minister of India, Shri Lal Bahadur Shastri passed away in Tashkent on 11 January. |
| 1969 | 14 private sector banks were nationalised on 19 July 1969. India's first Atomic Power Station Tarapur commenced commercial operation on October 28. The Indian National Congress split into 2 parties in November, one led by Mrs Indira Gandhi and the other led by Shri K Kamaraj. |
| 1971 | India Pakistan war was fought from 03 December to 16 December. |
| 1972 | Simla agreement was signed by Smt. Indira Gandhi and Mr. Zulfikar Ali Bhutto to put an end to the conflict and confrontation between the two countries. |
| 1974 | First nuclear test codenamed Smiling Buddha carried out at Pokhran (Rajasthan) on May 18. |
| 1975 | First Indian satellite Aryabhatta launched on 19 April 1975 from Kapustin Yar in USSR. Emergency was imposed on June 25 under Article 352 because of prevaling internal disturbances. |
| 1977 | Congress lost power for the first time at the centre and Shri Morarjee Desai was sworn in as the Prime Minister. |
| 1980 | The Congress returned to power with Smt Indira Gandhi becoming the Prime Minister again. Six more private sector banks were nationalised. |
| 1982 | Colour television transmission started in India. IX Asian Games held in Delhi from 19 November to 04 December. |
| 1984 | Smt Indira Gandhi, Indian Prime Minister was assassinated on 31 October by her body guards Satwant Singh and Beant Singh. Shri Rajiv Gandhi became the youngest person to be the Prime Minister of India. |
| 1991 | Shri Rajiv Gandhi, former Prime Minister was assassinated in a suicide attack in Sriperumbudur on 21 May. Economic liberalisation commenced in India. |
| 1992 | Babri Masjid, a 16th century mosque in Ayodhya was demolished by a mob. |
| 1995 | Access to internet for Indian people was provided on 15 August 1995. |
| 1998 | India’s second nuclear tests codenamed Operation Shakti were carried in May. |
| 1999 | Kargil invasion by Pakistani troops. |
| 2000 | India's population reaches 1 billion mark. |
| 2001 | Earthquake in Gujarat (January), Attack on Indian Parliament (December). |
| 2002 | Godhra incident occurred. |
| 2004 | Tsunami in Indian Ocean which caused large scale destruction in the Andaman and Nicobar islands, Tamil Nadu and Andhra Pradesh. |
| 2008 | Chandrayaan-1, India's first lunar probe was launched on 22 October from Satish Dhawan Space Centre. Terrorist attack on important places in Mumbai on 26 November. |
| 2013 | Mars Orbiter Mission, also known as Mangalyaan, was launched on 05 November from Satish Dhawan Space Centre. |