Political history, Five-Year Plans, Emergency, economic reforms, coalition era, and India's transformation — complete GS-1 Mains coverage
| Era | Period | Character | Key PM(s) | Defining Events |
|---|---|---|---|---|
| Era INehruvian | 1947–1964 | Nation-building, socialist planning, non-alignment | Jawaharlal Nehru | Constitution 1950, Republic Day, Hindi-Chinese war 1962, First 3 Five-Year Plans, IITs/IIMs, Green Revolution seeds sown |
| Era IICongress Dominance | 1964–1977 | Wars, populism, Emergency | Shastri, Indira Gandhi | 1965 & 1971 wars, Green Revolution, Bank Nationalization, Privy Purse abolition, Emergency 1975–77, JP Movement |
| Era IIIJanata & Return | 1977–1984 | First non-Congress government + Indira's return | Morarji Desai, Charan Singh, Indira Gandhi | First non-Congress government, Janata collapse, Operation Blue Star, Indira assassination 1984, Anti-Sikh riots |
| Era IVCoalition Age | 1984–2014 | Liberalization, coalitions, identity politics | Rajiv, VP Singh, Rao, Vajpayee, Manmohan, Modi (first term start) | 1991 reforms, Babri Masjid 1992, Pokhran II 1998, Kargil 1999, RTI 2005, MGNREGA, Aadhaar |
| Era VBJP Majority Era | 2014–present | Single-party majority, digital push, nationalism | Narendra Modi | GST 2017, Demonetization 2016, Article 370 abrogation 2019, COVID-19, PLI schemes, G20 Presidency 2023 |
| Phase / State | Year | Method | Key Details |
|---|---|---|---|
| Instrument of Accession | 1947 | Legal instrument | 562 princely states asked to sign. Sardar Patel (with VP Menon) masterminded integration |
| Hyderabad | 1948 | Police Action (Operation Polo) | Nizam refused to join. Military operation Sept 1948. Razakars defeated. |
| Junagadh | 1948 | Plebiscite | Nawab acceded to Pakistan; people voted for India |
| Kashmir | 1947–ongoing | Conditional accession | Maharaja Hari Singh signed IoA after Pakistani tribal invasion. Article 370 gave special status (abrogated 2019) |
| Goa, Daman, Diu | 1961 | Military operation | Portuguese refused to leave. Operation Vijay. Liberated Dec 1961. |
| States Reorganization | 1956 | Linguistic basis | Fazl Ali Commission → States Reorganisation Act 1956. 14 states, 6 UTs on linguistic lines. |
| Sikkim | 1975 | Referendum + 36th Amendment | Last state to join India. Monarchy abolished after referendum. |
| Puducherry | 1962 | Treaty with France | De facto transfer 1954, de jure 1962 |
2020 GS-1: "Assess the main administrative issues and socio-cultural problems in the integration process of Indian Princely States."
2013 GS-1: "The Cabinet Mission Plan — significance." | Distinguish how integration was handled differently for different states.
| Plan | Period | Focus | Target Growth | Actual Growth | Key Feature |
|---|---|---|---|---|---|
| 1st Plan | 1951–56 | Agriculture, Damodar Valley, Bhakra-Nangal | 2.1% | 3.6% | Harrod-Domar model; most successful relative to target |
| 2nd Plan | 1956–61 | Heavy industry (Mahalanobis model) | 4.5% | 4.2% | Steel plants at Bhilai, Durgapur, Rourkela; import substitution |
| 3rd Plan | 1961–66 | Self-reliance, agriculture + industry | 5.6% | 2.8% | Failed — China War 1962, Pakistan War 1965, drought. Called "tragic plan" |
| Plan Holidays | 1966–69 | 3 Annual Plans during crisis | — | — | Devaluation of Rupee 1966; Green Revolution began |
| 4th Plan | 1969–74 | Growth with stability | 5.7% | 3.3% | Bank Nationalization 1969; Green Revolution success; 1971 war disruption |
| 5th Plan | 1974–79 | Poverty alleviation (Garibi Hatao), self-reliance | 4.4% | 4.8% | Emergency period; 20-Point Programme; terminated early by Janata govt 1978 |
| Rolling Plan | 1978–80 | Janata govt approach | — | — | No fixed targets; abandoned by Indira govt |
| 6th Plan | 1980–85 | Poverty removal, IRDP | 5.2% | 5.4% | IRDP, NREP, anti-poverty focus; Indira Gandhi returned |
| 7th Plan | 1985–90 | Food, work, productivity | 5% | 6% | JRY, technology mission; Rajiv Gandhi era; most successful |
| Annual Plans | 1990–92 | Political instability | — | — | VP Singh, Chandra Shekhar; no 8th plan due to BoP crisis |
| 8th Plan | 1992–97 | LPG reforms integration | 5.6% | 6.8% | 1991 reforms absorbed; human development focus; PV Narasimha Rao era |
| 9th Plan | 1997–2002 | Growth with equity + social justice | 6.5% | 5.4% | Vajpayee era; Pokhran II; Kargil; Economic slowdown |
| 10th Plan | 2002–07 | 8% growth, MDG targets | 8% | 7.6% | India Shining; Bharat Nirman; NREGA 2005; RTI 2005 |
| 11th Plan | 2007–12 | Inclusive growth | 9% | 8% | Global financial crisis impact; Aadhaar launched; JNNURM |
| 12th Plan | 2012–17 | Faster, sustainable, inclusive growth | 8% | 6.9% | Last Five-Year Plan; NITI Aayog replaced Planning Commission in 2015 |
| Aspect | Planning Commission (1950–2015) | NITI Aayog (2015–present) |
|---|---|---|
| Created | 1950 by Cabinet Resolution | 2015 by Cabinet Resolution |
| Role | Top-down resource allocator; made Five-Year Plans | Think tank + policy advisor; no fund allocation power |
| Nature | Extra-constitutional body with real power | Advisory body; states are partners not subordinates |
| Head | PM as Chairman; Deputy Chairman (powerful) | PM as Chairman; CEO (administrative head) |
| State role | States received plan funds; top-down approach | Cooperative federalism; states have voice |
| Key output | Five-Year Plans | Vision documents (15-year), 3-year action agendas, SDG monitoring |
| Phase | Period | Key Development |
|---|---|---|
| Pre-Green Revolution | Pre-1965 | Traditional varieties, low yield, food imports (PL-480 from USA). Food crisis 1943 Bengal famine in memory. |
| Green Revolution (Phase 1) | 1965–1970 | HYV seeds (dwarf wheat by Norman Borlaug), chemical fertilizers, irrigation. Punjab, Haryana, W.UP focus. M.S. Swaminathan: Father of Green Revolution in India. |
| Wheat Revolution | 1968 | India achieved record wheat output 17 million tonnes. PM Shastri declared "Jai Jawan Jai Kisan." |
| Green Revolution (Phase 2) | 1970s–80s | Rice varieties (IR-8). Spread to Eastern India. Operation Flood (White Revolution — Verghese Kurien, AMUL model). |
| Evergreen Revolution | Post-2000 | MS Swaminathan's concept: productivity increases without ecological damage. Precision farming, organic farming. |
| Criticism of Green Revolution | Ongoing | Regional inequality (Punjab-Haryana benefited, not Eastern India). Groundwater depletion. Soil degradation. Farmer suicides in debt. Loss of biodiversity (monoculture). |
| Factor | Detail |
|---|---|
| Allahabad HC judgement | June 12, 1975 — Justice Sinha set aside Indira Gandhi's 1971 election, finding her guilty of corrupt electoral practices (use of government machinery, UP CM Yashpal Kapila's assistance) |
| JP Movement | Jayaprakash Narayan's "Total Revolution" demanding resignation of Indira Gandhi; Bihar movement; student protests |
| Railway Strike 1974 | George Fernandes led railway strike; largest industrial strike in world history at the time |
| Proclamation | June 25–26, 1975 midnight. President Fakhruddin Ali Ahmed signed Emergency under Article 352 on Cabinet recommendation. All India Radio announced it. |
| Action | Details |
|---|---|
| Suspension of Fundamental Rights | Articles 19, 20, 21 suspended (later SC in ADM Jabalpur case said even right to life can be suspended — overruled in 2017 Puttaswamy case) |
| Press Censorship | All major newspapers censored. Many journalists arrested. Indian Express left editorial blank in protest. |
| Arrests | JP Narayan, Morarji Desai, Atal Bihari Vajpayee, Advani, Charan Singh — over 100,000 arrested under MISA |
| 42nd Amendment 1976 | "Mini-Constitution" — added Socialist, Secular, Integrity to Preamble; Fundamental Duties (Article 51A); made Directive Principles supreme over some FRs; extended Parliament's term to 6 years |
| 20-Point Programme | Indira Gandhi's populist agenda: land reforms, abolition of bonded labour, slum clearance, adult education |
| Sanjay Gandhi's 5-Point Programme | Enforced family planning (sterilization), tree plantation, dowry abolition, slum clearance, adult education. Coercive sterilizations alienated masses. |
| Lifting of Emergency | January 18, 1977 — Indira Gandhi announced elections. Emergency lifted March 21, 1977. Congress lost elections. |
| Reform | Details |
|---|---|
| 44th Amendment 1978 | Reversed 42nd Amendment partially. Restored right to life (Art 21) as non-suspendable even in Emergency. Removed Right to Property from FRs (made legal right Art 300A). |
| Shah Commission 1977 | Investigated excesses of Emergency — atrocities, forced sterilizations, destruction of Turkman Gate slums |
| Janata Govt collapse | 1979 — Internal conflicts; VP Singh Janata Dal split; Indira returned 1980 with massive majority |
Frequently asked: "What led to the declaration of Emergency in 1975? What were its consequences for Indian democracy?" | "How did the Emergency period affect civil liberties in India?" | "Significance of 42nd and 44th Constitutional Amendments."
| Factor | Detail |
|---|---|
| Balance of Payments Crisis | Foreign exchange reserves: only $1.2 billion (barely 3 weeks of imports). India flew 67 tonnes of gold to Bank of England as collateral. |
| Gulf War 1990–91 | Oil prices spiked; remittances from Gulf fell; 170,000 Indians evacuated from Kuwait |
| Fiscal Deficit | 8.4% of GDP (1990–91). Inflation at 13%. Debt trap. |
| IMF Bailout Conditions | India approached IMF/World Bank; structural adjustment conditions required opening economy |
| Key Architects | PM PV Narasimha Rao + Finance Minister Dr. Manmohan Singh (Budget July 24, 1991 — "No time to lose") |
| Reform Area | Policy Change | Impact |
|---|---|---|
| Industrial Delicensing | Industrial Licensing Policy 1991 — abolished licensing for all except 18 industries (now 5: defence, hazardous chemicals, tobacco, alcohol, electronics aerospace) | Ended License Raj; private sector freed |
| Foreign Investment | FDI up to 51% allowed automatically in 35 priority industries (now most sectors open) | MNCs entered; technology transfer |
| MRTP → Competition | MRTP Act (Monopolies and Restrictive Trade Practices) effectively repealed; CCI (Competition Commission) later formed | Big businesses could expand freely |
| Devaluation | Rupee devalued by 22% in two steps (July 1991) | Exports became competitive |
| Trade Liberalization | Import quotas replaced by tariffs; tariffs gradually reduced | Consumer goods available; Indian firms faced competition |
| Financial Sector | New private banks allowed (HDFC, ICICI, Axis); interest rates deregulated; SEBI strengthened | Banking competition; capital markets deepened |
| Disinvestment | Partial privatization of PSUs; Disinvestment Commission set up | Partial privatization; government exited some sectors |
| Year | Event | Significance for UPSC |
|---|---|---|
| 1950 | Constitution of India came into force (Jan 26) | Republic Day; DR Ambedkar hailed as "father of constitution" |
| 1952 | First General Election | Largest democratic exercise; Congress won 364/489 seats |
| 1955 | Hindu Code Bills | Hindu Marriage Act, Hindu Succession Act — women's rights; Ambedkar resigned in protest over dilution |
| 1956 | States Reorganisation Act | Linguistic states; Fazl Ali Commission; Tamil Nadu, Kerala, Karnataka, AP formed |
| 1962 | Sino-Indian War | India's defeat; exposed military unpreparedness; PM Nehru's image damaged |
| 1965 | Indo-Pakistan War | Tashkent Agreement (Jan Moroz); PM Shastri died in Tashkent |
| 1966 | Rupee Devaluation | 57% devaluation; food crisis; "Ship-to-mouth" existence on PL-480 wheat |
| 1967 | 4th General Election | "Congress Syndrome" — first real coalition governments in states (non-Congress SVDs) |
| 1969 | Bank Nationalization | 14 major banks nationalized; Congress split (Syndicate vs Indicate) |
| 1971 | Bangladesh Liberation War | India-Pakistan war; creation of Bangladesh; 93,000 Pakistani POWs; Simla Agreement 1972 |
| 1974 | Pokhran-I (Smiling Buddha) | India's first nuclear test; "Peaceful Nuclear Explosion"; international sanctions followed |
| 1975–77 | Internal Emergency | See previous section |
| 1984 | Operation Blue Star + Indira assassination | June 1984: Army entered Golden Temple. Oct 31: Indira shot by bodyguards. Anti-Sikh riots. |
| 1987 | Bofors scandal | Swedish gun company bribed Indian officials; derailed Rajiv Gandhi's image |
| 1989 | Mandal Commission implementation | VP Singh announced OBC reservation (27%) — mass anti-reservation protests, BJP's Rath Yatra |
| 1991 | Rajiv Gandhi assassination | LTTE suicide bomber in Sriperumbudur; LPG reforms began under Narasimha Rao |
| 1992 | Babri Masjid demolition | Dec 6; communal riots; SC cases (Ismail Faruqi, Allahabad HC, final SC 2019 verdict gave land to Hindus) |
| 1998 | Pokhran-II (Operation Shakti) | 5 nuclear tests; India declared nuclear weapons state; international sanctions. Pakistan responded with Chagai tests. |
| 1999 | Kargil War | Pakistan infiltrated Kargil heights; Operation Vijay; India recaptured; Vajpayee-Sharif Lahore Declaration violated |
| 2002 | Gujarat riots | Godhra train burning → communal riots; 2000+ deaths; Supreme Court monitored trial |
| 2004 | UPA-1 formation | Congress returned with Left support; Common Minimum Programme; NREGA, RTI, RTE enacted |
| 2008 | Mumbai 26/11 attacks | Pakistan-based Lashkar-e-Taiba; 166 killed; India-Pakistan tensions; Ajmal Kasab caught and executed 2012 |
| 2014 | BJP majority under Modi | First majority government since 1984; BJP won 282/543 seats; NDA got 336 |
| 2016 | Demonetization | Rs 500 and 1000 notes (86% of currency) cancelled overnight; disruption to informal economy; controversial |
| 2017 | GST implementation | July 1 — "One Nation One Tax" replaced 17 taxes; federal tax reform |
| 2019 | Article 370 abrogation + CAA | J&K's special status removed; state divided into 2 UTs. Citizenship Amendment Act — fast-track citizenship for non-Muslim minorities from 3 Islamic countries |
| 2020 | COVID-19 pandemic | Lockdowns; reverse migration crisis; Atmanirbhar Bharat package; vaccine drive |
| 2023 | India's G20 Presidency | New Delhi Summit; "Vasudhaiva Kutumbakam" theme; African Union inducted; Global South voice |
| Conflict | Year | Outcome | Key Point |
|---|---|---|---|
| Kashmir War (First) | 1947–48 | Ceasefire; LoC established | Hari Singh's accession; UN resolution; Pakistan-Occupied Kashmir (PoK) |
| Sino-Indian War | 1962 | India lost; China captured Aksai Chin | Nehru's "Forward Policy"; Chinese attack on Oct 20; ceasefire Nov 21. Left painful legacy. |
| Indo-Pak War | 1965 | Stalemate; Tashkent Agreement | Pakistan's Operation Gibraltar; status quo ante; Shastri died in Tashkent Jan 11, 1966 |
| Bangladesh War | 1971 | India won; Bangladesh created | Pakistan's Operation Searchlight; 10 million refugees; Indira-Mujib-Nixon triangle; Simla Agreement 1972 |
| Pokhran-I | 1974 | India's first nuclear test | "Smiling Buddha"; Peaceful Nuclear Explosion; Canada cut off nuclear cooperation |
| Kargil War | 1999 | India won; Pakistan withdrew | Pakistan sent irregulars + army disguised; 527 Indian soldiers killed; Operation Vijay; Vajpayee refused to cross LoC |
| Pokhran-II | 1998 | India declared nuclear state | Operation Shakti; 5 tests; "India is now a nuclear weapons state" — Vajpayee |
| Doklam Standoff | 2017 | Disengagement after 73 days | China building road in Bhutan territory; India intervened; disengagement without clear victor |
| Galwan Valley Clash | 2020 | India: 20 soldiers killed; China losses concealed | First deaths on LAC since 1975; multiple disengagement agreements; ongoing PLA presence |
| Amendment | Year | Key Change |
|---|---|---|
| 1st | 1951 | Added Ninth Schedule (land reforms laws beyond judicial review); restrictions on free speech |
| 7th | 1956 | States Reorganisation — abolished Part A/B/C/D states; current state-UT structure |
| 13th | 1962 | Nagaland became a state |
| 24th | 1971 | Parliament's power to amend any part of Constitution including Fundamental Rights (after Golaknath case) |
| 25th | 1971 | Privy Purse abolished; property right abridgeable for public purpose |
| 42nd | 1976 | "Mini-Constitution" of Emergency — added Socialist/Secular/Integrity; Fundamental Duties; DPSP > FRs; extended Parliament term; 10th Schedule (anti-defection) seeds |
| 44th | 1978 | Restored Art 21 as non-suspendable; removed property from FRs; reversed some Emergency-era changes |
| 52nd | 1985 | Anti-Defection Law (10th Schedule) — members lose seat for defection |
| 61st | 1988 | Voting age reduced from 21 to 18 |
| 73rd | 1992 | Panchayati Raj constitutionalized — 11th Schedule, 3Fs, 1/3 reservation for women |
| 74th | 1992 | Urban Local Bodies constitutionalized — 12th Schedule, Municipalities |
| 86th | 2002 | Article 21A — Right to Education for 6–14 years; Article 51A(k) — parent duty |
| 91st | 2003 | Council of Ministers limited to 15% of lower house; anti-defection strengthened |
| 97th | 2011 | Cooperative societies — right to form; Part IXB added |
| 100th | 2015 | Land Boundary Agreement with Bangladesh — exchange of enclaves |
| 101st | 2016 | GST — Articles 246A, 269A, 279A; GST Council constituted |
| 102nd | 2018 | National Commission for Backward Classes given constitutional status |
| 103rd | 2019 | 10% EWS reservation for economically weaker sections in general category |
| 104th | 2020 | Extended SC/ST reservation in Lok Sabha/state assemblies by 10 years (to 2030) |
| 106th | 2023 | Women's Reservation Bill — 33% reservation in LS and state assemblies (after delimitation) |
| Case | Year | Issue | Verdict / Significance |
|---|---|---|---|
| Shankari Prasad | 1951 | Can Parliament amend FRs? | Yes — amendment power includes FRs (Art 368) |
| Golak Nath | 1967 | Can Parliament amend FRs? | No — FRs are sacrosanct; Parliament cannot abridge them (reversed by 24th Amendment) |
| Kesavananda Bharati | 1973 | Extent of amendment power | Basic Structure Doctrine — Parliament cannot alter "basic structure" of Constitution |
| ADM Jabalpur | 1976 | Rights during Emergency | Shameful verdict — court said right to life can be suspended (overruled in 2017) |
| Minerva Mills | 1980 | Balance between FRs and DPSPs | Reinforced Basic Structure; Art 31C (emergency-era) limited; balance of FRs and DPSPs is itself basic structure |
| S.R. Bommai | 1994 | President's Rule / Article 356 | Floor test mandatory; President's Rule subject to judicial review; dissolved assemblies can be revived |
| Vishaka | 1997 | Sexual harassment at workplace | Vishaka Guidelines — mandatory; later codified in POSH Act 2013 |
| NJAC judgement | 2015 | Judicial appointments | Struck down NJAC Act; collegium system retained; Parliament's attempt to control judiciary rejected |
| Right to Privacy | 2017 | Is privacy a fundamental right? | 9-judge bench — Privacy is fundamental right under Art 21. Overruled ADM Jabalpur dictum. |
| Sabarimala | 2018 | Women's entry in temple | 4:1 majority — women of all ages can enter. Religious practice must yield to constitutional morality. |
| Adultery (Joseph Shine) | 2018 | Section 497 IPC | Adultery decriminalised; treated women as property; unconstitutional |
| Ayodhya | 2019 | Ram Janmabhoomi-Babri Masjid | Unanimous 5-judge bench; 2.77 acres to Ram Lalla; 5 acres alternate land to Sunni Waqf Board |
| EWS Reservation | 2022 | 103rd Amendment validity | 3:2 majority upheld 10% EWS reservation for general category poor |
| Same-sex marriage | 2023 | Right to marry for LGBTQ+ | 5-judge bench (3:2) — no fundamental right to marriage; Parliament/states must decide |
| # | Prime Minister | Period | Party | Key Legacy |
|---|---|---|---|---|
| 1 | Jawaharlal Nehru | 1947–1964 | INC | Non-Alignment, IITs/IIMs, Planning Commission, Panchsheel, "Hindi-Chini bhai bhai" then 1962 war |
| 2 | Gulzarilal Nanda (acting) | 1964 (2x) | INC | Interim PM twice (after Nehru and Shastri deaths) |
| 3 | Lal Bahadur Shastri | 1964–1966 | INC | "Jai Jawan Jai Kisan"; 1965 war; Green Revolution; died Tashkent 1966 |
| 4 | Indira Gandhi | 1966–77, 1980–84 | INC | 1971 war, Emergency, Green Revolution success, Pokhran-I, Bank nationalization, Garibi Hatao |
| 5 | Morarji Desai | 1977–1979 | Janata | First non-Congress PM; reversed Emergency excesses; Shah Commission |
| 6 | Charan Singh | 1979–1980 | Janata Dal | Never faced Parliament; resigned before confidence vote; shortest-serving PM |
| 7 | Rajiv Gandhi | 1984–1989 | INC | Computer/IT revolution; telecom, Panchayati Raj seeds; Bofors; LTTE intervention in Sri Lanka; assassinated 1991 |
| 8 | VP Singh | 1989–1990 | Janata Dal | Mandal Commission (OBC reservation); Bofors investigation; Meham violence; government fell on Rath Yatra |
| 9 | Chandra Shekhar | 1990–1991 | Samajwadi Janata | Gold pledge to overcome BoP crisis; caretaker till elections |
| 10 | PV Narasimha Rao | 1991–1996 | INC | 1991 LPG reforms with Manmohan Singh; Look East Policy; LTTE assassination of Rajiv |
| 11 | HD Deve Gowda | 1996–1997 | JD(S)/UF | United Front coalition; National Highways Development Programme initiated |
| 12 | IK Gujral | 1997–1998 | JD(U)/UF | Gujral Doctrine — asymmetric concessions to neighbours; short tenure |
| 13 | Atal Bihari Vajpayee | 1998–2004 | BJP/NDA | Pokhran-II 1998, Kargil 1999, NHDP (Golden Quadrilateral), Lahore Bus Diplomacy, Agra Summit |
| 14 | Manmohan Singh | 2004–2014 | INC/UPA | UPA-I (NREGA, RTI, RTE, Aadhaar); Indo-US nuclear deal 2008; UPA-II (policy paralysis, corruption scams — 2G, CWG, Coal) |
| 15 | Narendra Modi | 2014–present | BJP/NDA | Swachh Bharat, Jan Dhan, Make in India, Demonetization, GST, Article 370, COVID vaccination, G20 Presidency; 3rd consecutive majority 2024 |