| Word | What it means |
|---|---|
| Sovereign | Free from external control; supreme in its own affairs |
| Socialist | Committed to social & economic justice and reduced inequality |
| Secular | No state religion; equal treatment of all faiths |
| Democratic | Government by the people through universal adult franchise |
| Republic | An elected head of state — no hereditary monarch |
| Right | Articles | Covers |
|---|---|---|
| Right to Equality | 14–18 | Equality before law, non-discrimination |
| Right to Freedom | 19–22 | Speech, movement, life & liberty |
| Against Exploitation | 23–24 | No trafficking, forced or child labour |
| Freedom of Religion | 25–28 | Conscience, practice, propagation |
| Cultural & Educational | 29–30 | Minority language & institutions |
| Constitutional Remedies | 32 | The right to enforce all the rest |
| Article | Protects |
|---|---|
| 20 | Against arbitrary conviction — no retrospective crimes, no double jeopardy, no self-incrimination |
| 21 | Right to life and personal liberty — expanded by courts into dignity, privacy, health, environment |
| 21A | Right to free and compulsory education, ages 6–14 |
| 22 | Safeguards on arrest and detention — with debated exceptions for preventive detention |
| Writ | What it does |
|---|---|
| Habeas Corpus | 'Produce the body' — challenge unlawful detention |
| Mandamus | 'We command' — order an authority to do its legal duty |
| Prohibition | Stop a lower court exceeding its jurisdiction |
| Certiorari | Quash an order passed without jurisdiction or in error |
| Quo Warranto | 'By what authority?' — challenge a public office-holder |
| Office | Role |
|---|---|
| President | Constitutional head of state; acts on the advice of the Council of Ministers |
| Prime Minister | Head of government; leads the Council; commands the Lok Sabha majority |
| Council of Ministers | Runs the departments; collectively responsible to the Lok Sabha |
| Vice-President | Ex-officio Chairperson of the Rajya Sabha |
| List | Who legislates | Examples |
|---|---|---|
| Union List | Parliament only | Defence, foreign affairs, currency, railways |
| State List | State legislatures | Police, public health, agriculture, land |
| Concurrent List | Both (Union prevails if clash) | Education, forests, marriage, criminal law |
| Type | Trigger (broadly) |
|---|---|
| National emergency | War, external aggression or armed rebellion |
| State emergency (President's Rule) | Breakdown of constitutional machinery in a state |
| Financial emergency | A threat to the financial stability of India |
| Route | Requirement |
|---|---|
| Simple majority | Some provisions amendable by ordinary majority (outside Article 368) |
| Special majority | Majority of total membership and two-thirds of those present and voting in each House |
| Special majority + states | The above, plus ratification by half the state legislatures for federal provisions |
| Amendment | What it did |
|---|---|
| 42nd (1976) | Added 'Socialist', 'Secular', Fundamental Duties; expanded central power |
| 44th (1978) | Rolled back several 42nd-Amendment changes; strengthened rights |
| 73rd & 74th (1992) | Constitutionalised panchayats and municipalities |
| 86th (2002) | Added Article 21A — the right to education |
| 101st (2016) | Introduced the Goods and Services Tax (GST) |
| Law | Constitutional root |
|---|---|
| Right to Education Act, 2009 | Article 21A (86th Amendment, 2002) |
| Right to Information Act, 2005 | Article 19 — freedom of speech & expression |
| MGNREGA, 2005 | Right to livelihood read into Article 21 |
| Forest Rights Act, 2006 | Equality, livelihood and tribal rights |