77 Years on One Page: The Master Timeline of Independent India

Seventy-seven years of independent India, on a single page. From the midnight of 1947 to the Moon's south pole in 2023, this is the chronological spine of the entire Post-Independence India library - every high-yield date, every turning point, decade by decade. Read it once for the story, then revise it the night before the exam.

1947-1959: The Republic Takes Shape

• 1947: Independence (15 August); Partition; rehabilitation of ~60 lakh refugees begins.
• 1948: Mahatma Gandhi assassinated (30 January); Atomic Energy Commission under Homi Bhabha; Operation Polo integrates Hyderabad (September).
• 1949:Constitution adopted (26 November); Radhakrishnan Commission on university education.
• 1950:Constitution comes into force (26 January); Planning Commission set up (March); NPL Delhi and NCL Pune inaugurated.
• 1951:First Five-Year Plan launched; IIT Kharagpur established; first general elections (1951-52).
• 1952:Community Development Programme launched; first Lok Sabha constituted.
• 1952: Tribal Panchsheel, Nehru's five principles for tribal development; the Fifth and Sixth Schedules take shape.
• 1953:States Reorganisation Commission appointed; UGC inaugurated; Kaka Kalelkar Commission on backward classes.
• 1954:Department of Atomic Energy formed; Panchsheel Agreement with China.
• 1955:Bandung Conference - the seed of the Non-Aligned Movement; Hindu Marriage Act passed.
• 1956:States Reorganisation Act (linguistic states); Apsara reactor goes critical at Trombay; AIIMS Act; life insurance nationalised (LIC).
• 1957:Second Five-Year Plan (Mahalanobis heavy-industry model).
• 1958:DRDO established for defence research.

1960s: Wars, Hunger, and the Green Revolution

• 1960: Bombay State bifurcated into Maharashtra and Gujarat.
• 1961:Goa liberated (Operation Vijay, December); NCERT and IIMs (Calcutta, Ahmedabad) established; Dowry Prohibition Act.
• 1962:Sino-Indian War (October-November); INCOSPAR set up under Vikram Sarabhai.
• 1963:Official Languages Act (English to continue); first sounding rocket from Thumba; Nagaland becomes a state; Kendriya Vidyalayas started.
• 1964:Nehru dies (27 May); Lal Bahadur Shastri becomes PM; Kothari Commission appointed.
• 1965:Indo-Pak War; Tashkent Declaration (January 1966); anti-Hindi agitations in Tamil Nadu.
• 1966:Indira Gandhi becomes PM; Green Revolution begins with high-yielding seeds; rupee devalued; Haryana carved out of Punjab.
• 1967: Fourth general election - Congress loses power in several states for the first time.
• 1968: First National Policy on Education (based on Kothari Commission).
• 1969:14 major banks nationalised (July); Congress splits; ISRO formally established.
• 1965: 'Jai Jawan Jai Kisan', Shastri's slogan saluting soldier and farmer in a year of war and hunger.

1970s: Triumph, Turmoil, Emergency

• 1970:Operation Flood (White Revolution) begins under Verghese Kurien.
• 1971:Bangladesh War (December) - Pakistan defeated, Bangladesh created; privy purses abolished (26th Amendment).
• 1972:Shimla Agreement with Pakistan (July).
• 1973:Kesavananda Bharati judgment - basic structure doctrine (April).
• 1974:Smiling Buddha - India's first nuclear test at Pokhran (18 May); JP Movement erupts in Bihar.
• 1975:Emergency declared (25 June); Aryabhata, India's first satellite, launched (19 April); Sikkim becomes the 22nd state (May).
• 1976:42nd Amendment - 'Socialist', 'Secular' added to the Preamble; Fundamental Duties introduced.
• 1977:Janata Party defeats Congress; Morarji Desai PM; smallpox eradicated in India; 44th Amendment process begins.
• 1978:44th Amendment - right to property removed from fundamental rights.
• 1979:Mandal Commission appointed under Morarji Desai; Charan Singh's brief premiership.
• 1973: Chipko movement in Uttarakhand, villagers hug trees to stop commercial logging.

1980s: Technology, Accords, and Assassinations

• 1980: Congress returns to power; SLV-3 puts Rohini in orbit - indigenous launch capability; Mandal report submitted.
• 1982: Asian Games in Delhi - colour TV arrives in India.
• 1983:IGMDP missile programme launched under Kalam; India wins the Cricket World Cup; first National Health Policy.
• 1984:Operation Blue Star (June); Indira Gandhi assassinated (31 October), anti-Sikh riots follow; Bhopal gas tragedy (December); Rakesh Sharma in space (April); Rajiv Gandhi PM.
• 1985:Anti-defection law (52nd Amendment, Tenth Schedule); Assam Accord (August); Shah Bano judgment.
• 1986:Mizoram Accord; second National Policy on Education; Mizoram and Arunachal Pradesh become states (1987).
• 1987: Bofors scandal breaks; Goa becomes a state.
• 1988:Operation Cactus - India foils coup in Maldives.
• 1989: Hung Lok Sabha; National Front government under V.P. Singh - the coalition era begins.
• 1985: Narmada Bachao Andolan begins, Medha Patkar and Baba Amte challenge big-dam displacement.
• 1987: Indo-Sri Lanka Accord; the IPKF deploys to Sri Lanka (Operation Pawan).
• 1988: 61st Amendment lowers the voting age from 21 to 18.

1990s: Mandal, Mandir, Market - and the Bomb

• 1990:Mandal Commission implemented - 27% OBC reservation (August); Advani's Rath Yatra; V.P. Singh government falls.
• 1991:Rajiv Gandhi assassinated (21 May); P.V. Narasimha Rao PM; LPG reforms launched (July budget); Look East Policy; PARAM 8000 supercomputer.
• 1992:Babri Masjid demolished (6 December); 73rd/74th Amendments - panchayat and municipal democracy; SEBI made statutory; Harshad Mehta scam.
• 1993: Mumbai serial blasts (March); PSLV's maiden flight fails.
• 1994:PSLV's first successful flight (October); Surat plague.
• 1995: India becomes a founding member of the WTO (January).
• 1996: Vajpayee's 13-day government; United Front under Deve Gowda.
• 1997: 50 years of independence; I.K. Gujral PM; 'Dream Budget'; Gujral Doctrine.
• 1998:Pokhran-II / Operation Shakti - five nuclear tests (11 & 13 May); Vajpayee's NDA government; sanctions follow.
• 1999:Kargil War (May-July); NDA wins full-term mandate; IC-814 hijacking (December).

2000s: Rights, Growth, and Global Arrival

• 2000:Chhattisgarh, Uttarakhand, Jharkhand created (November); Sarva Shiksha Abhiyan launched.
• 2001:Parliament attack (13 December); Agra Summit with Musharraf.
• 2002: Gujarat riots; 86th Amendment - education as a fundamental right (Article 21A).
• 2003:FRBM Act for fiscal discipline.
• 2004:UPA comes to power under Manmohan Singh; Indian Ocean tsunami (December).
• 2005: The year of rights - RTI Act, MGNREGA, Domestic Violence Act, Hindu Succession Amendment, NRHM.
• 2006:Forest Rights Act recognising tribal rights.
• 2007:Pratibha Patil becomes India's first woman President.
• 2008:26/11 Mumbai attacks; Indo-US nuclear deal and NSG waiver; Chandrayaan-1 finds water on the Moon (October).
• 2009:RTE Act passed; UPA-II begins.

2010s-2020s: New India, Old Questions

• 2010: Commonwealth Games, Delhi; 2G spectrum scam erupts.
• 2011:Anna Hazare anti-corruption movement; Census 2011 - literacy 74%.
• 2012:Nirbhaya case (December) triggers criminal-law reform.
• 2013:National Food Security Act; Criminal Law (Amendment) Act; Mangalyaan launched (November).
• 2014:Telangana created (June); BJP wins single-party majority - Narendra Modi PM; India certified polio-free; Mangalyaan enters Mars orbit (September); Planning Commission to become NITI Aayog.
• 2016:UPI launched (April); demonetisation (8 November).
• 2017:GST rolled out (1 July); ISRO launches 104 satellites on one rocket.
• 2018:Ayushman Bharat launched (September); Section 377 read down (Navtej Singh Johar).
• 2019:Article 370 abrogated, J&K bifurcated (August); Chandrayaan-2 launched.
• 2020: COVID-19 lockdown (March); NEP 2020 announced (July); IN-SPACe opens space to private players.
• 2021:Covaxin/Covishield vaccination drive - among the world's largest; farm laws repealed.
• 2022:Droupadi Murmu becomes India's first tribal President (July).
• 2023:Chandrayaan-3 lands near the lunar south pole (23 August) - a world first; Aditya-L1 solar mission; women's reservation Act passed (September).
• 2024:P.V. Narasimha Rao awarded the Bharat Ratna posthumously; Aditya-L1 enters halo orbit (January).

How to use this page: read decade by decade, and for every bolded event ask yourself why it mattered - the cause, the consequence, the controversy. Each bolded line is a potential Prelims question; each decade's arc is a potential Mains answer.

Three schemes that scaled: Jan Dhan, Aadhaar, Swachh Bharat

The 2010s timeline above misses three instruments that changed state-citizen relations at scale. The Pradhan Mantri Jan Dhan Yojana (2014) opened zero-balance bank accounts for crores of unbanked households - financial inclusion as a state mission. Aadhaar, the 12-digit biometric identity (UIDAI from 2009; Aadhaar Act, 2016), became the identity layer on which Direct Benefit Transfer ran - subsidies moving straight to bank accounts. Swachh Bharat Mission (2014) took the same saturation logic to sanitation, with the toilet-building drive pushing toward open-defecation-free status. Together with mobile telephony - the JAM trinity - they are the decade's administrative signature.

At a glance: seven decades in one table

Periodisation is the historian's practice of dividing the past into named stretches so that change over time becomes visible. It matters on this page because the decade boxes below are arguments, not just containers: each one claims that some problems defined an era and then gave way to others.

Key Terms

• 2023:Chandrayaan-3 lands near the lunar south pole: On 23 August 2023, Chandrayaan-3's Vikram lander touched down near the Moon's south pole, making India the fourth country to soft-land on the Moon and the first to land in the south polar region. Launched on 14 July 2023 aboard LVM3, the mission deployed the Pragyan rover to study lunar soil and water ice. For UPSC, it demonstrates ISRO's low-cost engineering, in-situ resource science, and India's growing space power status. The landing site was named Shiv Shakti Point.
• Sikkim becomes the 22nd state: Sikkim becomes the 22nd state is the 1975 merger of the former Himalayan kingdom into India after a referendum abolished the Chogyal monarchy. India had made Sikkim an associate state through the 35th Amendment (1974); the 36th Amendment (1975) then made it a full state with special provisions under Article 371F. For UPSC prelims, the 35th/36th Amendment sequence is a classic question. The 36th Constitutional Amendment, 1975, making Sikkim India's 22nd state.
• Haryana carved out of Punjab: The carving of Haryana out of Punjab in 1966, under the Punjab Reorganisation Act, split the bilingual state on linguistic lines following the Punjabi Suba movement, with the Shah Commission demarcating the boundaries. Chandigarh became a shared Union Territory capital. For UPSC, it is a textbook case of Article 3 reorganisation driven by language.
• founding member of the WTO: India is a founding member of the World Trade Organization, which began functioning on 1 January 1995 as the successor to GATT. Founding membership gives India a voice in shaping multilateral trade rules, and it underpins India's defence of agricultural subsidies, special and differential treatment and food security at forums like the Doha Round. UPSC relevance: GS-2 international institutions and GS-3 trade policy. Doha Development Round (2001)
• 2011:Anna Hazare anti-corruption movement: The 2011 anti-corruption movement, led by Anna Hazare under the India Against Corruption banner, was a mass civil-society agitation demanding a strong Jan Lokpal Bill to create an independent ombudsman against corruption. Hazare's hunger strikes at Jantar Mantar and Ramlila Maidan in Delhi drew nationwide support and forced the government to negotiate. For UPSC, it is the landmark case of extra-parliamentary pressure shaping legislation and reviving the Lokpal debate. The movement culminated in the Lokpal and Lokayuktas Act, 2013, though the first Lokpal was appointed only in 2019.
• 1994:PSLV's first successful flight: The PSLV's first successful flight was PSLV-D2 on 15 October 1994, which placed the IRS-P2 remote-sensing satellite in a sun-synchronous orbit after the partial failure of PSLV-D1 in 1993. It proved India's indigenous polar launch capability and began the PSLV's record as ISRO's workhorse launcher. For UPSC it anchors the space programme timeline and questions on satellite launch vehicles. PSLV-C37 in February 2017 launched a record 104 satellites in a single mission, demonstrating the vehicle's commercial maturity.
• 1950:Constitution comes into force: The Constitution of India came into force on 26 January 1950, the date deliberately chosen to honour the Purna Swaraj declaration of 1930. India became a sovereign democratic republic, Dr. Rajendra Prasad took office as the first President, and the Constituent Assembly became the provisional Parliament. For UPSC the date is celebrated as Republic Day and marks the legal birth of the Republic. The first Republic Day parade was held at Irwin Stadium in New Delhi on 26 January 1950.
• 1998:Pokhran-II / Operation Shakti: Pokhran-II, codenamed Operation Shakti, is the series of five nuclear tests India conducted at Pokhran, Rajasthan, on 11 and 13 May 1998, including one thermonuclear device. The tests under the Vajpayee government made India an overt nuclear-weapon state, drew US and Japanese sanctions, and led to the 2003 nuclear doctrine with its no-first-use pledge. For UPSC it is central to nuclear policy and strategic affairs. The tests paved the way for the 2008 NSG waiver and the Indo-US civil nuclear agreement, ending India's nuclear isolation.
• 1954:Department of Atomic Energy: The Department of Atomic Energy was established in 1954 under Homi J. Bhabha, placed directly under the Prime Minister, to develop atomic energy for power generation and research. It grew out of the Atomic Energy Establishment at Trombay and embodied the state's direct stewardship of strategic science. For UPSC it anchors questions on India's three-stage nuclear programme and civilian nuclear policy. The Apsara research reactor at Trombay went critical in 1956, the first in Asia outside the Soviet Union.
• 1969:14 major banks nationalised: The 1969 bank nationalisation is the takeover on 19 July 1969 of 14 major banks (those with deposits above Rs 50 crore), done to break the nexus between big business and banking and to push credit toward agriculture, small industry and the priority sector. A second round followed in 1980. For UPSC it is the landmark of financial inclusion, later qualified by the Narasimham reforms. The lead bank scheme (1969), which assigned every district a lead bank for credit planning.
• 2013:National Food Security Act: The National Food Security Act, 2013 is a rights-based law that makes subsidised foodgrain a legal entitlement for up to 75 percent of the rural and 50 percent of the urban population, roughly 81 crore people, at Rs 3, 2 and 1 per kg for rice, wheat and coarse grains. It covers pregnant women, lactating mothers and children through supplementary nutrition. For UPSC, it marks the shift from welfare schemes to justiciable food rights and Centre-state fiscal sharing. During the pandemic, the PM Garib Kalyan Anna Yojana added five kg of free grain per person per month over NFSA entitlements from April 2020.
• Mangalyaan enters Mars orbit: Mangalyaan enters Mars orbit refers to the Mars Orbit Insertion of 24 September 2014, when ISRO's Mars Orbiter Mission successfully fired its liquid apogee motor to be captured by Martian gravity after a ten-month journey. For UPSC this event matters because it made India the first country in history to succeed on its first Mars attempt and the first Asian nation to reach the Red Planet, a landmark prelims and mains fact on science and technology achievements. 24 September 2014

Practice questions