GS-2 · Laxmikanth-level · UPSC Civil Services
Indian Polity &
Constitution
A complete, source-linked UPSC reference — from the Preamble to Emergency Provisions, every Article, Schedule and Amendment that matters for Prelims & Mains.
Start with the Preamble
All Fundamental Rights
12 Schedules
Key Amendments
PYQ Tagged
How to use this page: each topic below is a self-contained reference with tables, key facts and case law. IMP marks high-yield facts and PYQ marks previously-asked areas. Always cross-verify with the Bare Act and official sources.
📜 Preamble to the Constitution
“WE, THE PEOPLE OF INDIA, having solemnly resolved to constitute India into a SOVEREIGN SOCIALIST SECULAR DEMOCRATIC REPUBLIC and to secure to all its citizens: JUSTICE — Social, Economic and Political; LIBERTY of thought, expression, belief, faith and worship; EQUALITY of status and of opportunity; and to promote among them all FRATERNITY assuring the dignity of the individual and the unity and integrity of the Nation…”
| Word/Phrase | Meaning / Significance |
|---|---|
| Sovereign | India is free from external control; no foreign power can dictate. IMP |
| Socialist | Added by 42nd Amendment (1976); mixed economy, equitable distribution of resources. |
| Secular | Added by 42nd Amendment (1976); state has no official religion; equal respect to all religions. |
| Democratic | Universal adult franchise; government of, by, for the people. |
| Republic | Elected head of state (President), not hereditary monarch. |
| Justice (Social, Economic, Political) | Social = no discrimination; Economic = equitable distribution; Political = universal suffrage. |
| Liberty | Articles 19–22; freedom of thought, expression, belief, faith, worship. |
| Equality | Articles 14–18; equal before law + no discrimination. |
| Fraternity | Sense of brotherhood; no separate provision in Part III — achieved through DPSPs and implementation. |
Key facts: Preamble based on Jawaharlal Nehru's Objectives Resolution (1946). Not enforceable in court but used to interpret the Constitution. S.R. Bommai — secularism is a basic feature. Berubari Union (1960) — Preamble is NOT part of the Constitution. Kesavananda Bharati (1973) — Preamble IS part of the Constitution. PYQ
🪪 Citizenship (Articles 5–11)
| Article | Provision |
|---|---|
| Art 5 | Citizenship at commencement of Constitution (born in India OR either parent born in India OR resident for 5 years) |
| Art 6 | Rights of migrants from Pakistan (before 19 July 1948) |
| Art 7 | Migrants to Pakistan after 1 March 1947 — not citizens unless returned with a resettlement permit |
| Art 8 | Citizenship for persons of Indian origin residing outside India |
| Art 9 | Voluntarily acquiring citizenship of a foreign state → loss of Indian citizenship |
| Art 10 | Continuance of citizenship rights |
| Art 11 | Parliament has power to regulate citizenship by law → Citizenship Act, 1955 |
Citizenship Act, 1955 — Modes of Acquiring Citizenship
- By birth: Born in India. After the 2003 amendment — both parents must be Indian citizens (or one citizen, other not an illegal migrant).
- By descent: Born outside India; father/mother must be an Indian citizen at the time of birth (registered with an Indian consulate).
- By registration: PIO for 7 years; Commonwealth citizens residing in India for 7 years; married to an Indian citizen for 7 years.
- By naturalisation: Resided in India for 11 years (last 12 months + 10 of the previous 14 years). Reduced to 5 years for specific categories.
- By incorporation of territory: When new territory merges with India.
Termination of Citizenship
- Renunciation: Voluntary relinquishment (minor children also lose it, can reclaim at 18).
- Termination: Voluntarily acquiring foreign citizenship.
- Deprivation: Government can cancel citizenship obtained by fraud, disloyalty, or living abroad 7+ years.
India has single citizenship (unlike the USA, which has dual — federal + state). OCI (Overseas Citizen of India) ≠ full citizenship; no political rights (voting, government jobs). PYQ
⚖️ Fundamental Rights (Articles 12–35, Part III)
Note: Originally 7 FRs; Right to Property removed (44th Amendment, 1978) → now a legal right under Art 300A. Currently 6 Fundamental Rights. Art 12 defines “State” for Part III purposes. Art 13: laws inconsistent with FRs are void.
1. Right to Equality
Equality before law and equal protection of laws. No discrimination on grounds of religion, race, caste, sex, place of birth. Abolition of untouchability. Abolition of titles.
Art 14, 15, 16, 17, 18
2. Right to Freedom
Six freedoms: speech & expression, assembly, association, movement, residence, profession. Right to life & personal liberty. Protection against arbitrary arrest (Art 22).
Art 19, 20, 21, 21A, 22
3. Right Against Exploitation
Prohibition of traffic in human beings and forced labour (begar). No employment of children below 14 in hazardous industries.
Art 23, 24
4. Right to Freedom of Religion
Freedom of conscience, freely profess, practice and propagate religion. Manage religious affairs. No religious instruction in state-funded schools.
Art 25, 26, 27, 28
5. Cultural & Educational Rights
Right of minorities to conserve language, script, culture. Right of minorities to establish and administer educational institutions.
Art 29, 30
6. Right to Constitutional Remedies
“Heart and soul of the Constitution” — B.R. Ambedkar. Right to move the Supreme Court for enforcement of FRs. SC can issue writs.
Art 32
Article 19 — Six Freedoms (and Restrictions)
| Freedom | Reasonable Restrictions (Art 19(2)–(6)) |
|---|---|
| Speech & Expression | Sovereignty, integrity, security of India; friendly relations with foreign states; public order; decency/morality; contempt of court; defamation; incitement to offence |
| Peaceful Assembly | Sovereignty/integrity of India; public order |
| Form Associations | Sovereignty/integrity; public order; morality |
| Move freely throughout India | Interests of general public; protection of any SC/ST |
| Reside in any part of India | Interests of general public; protection of any SC/ST |
| Practice any profession | Interests of general public; State can prescribe professional qualifications |
Writs (Art 32 by SC; Art 226 by HC) PYQ
| Writ | Meaning | Purpose | Against |
|---|---|---|---|
| Habeas Corpus | “You may have the body” | Release from illegal detention | Any authority, even private persons |
| Mandamus | “We command” | Compel a public authority to perform its duty | Public officials, government bodies (not President/Governor, private individuals) |
| Prohibition | “To forbid” | Stop a lower court from exceeding jurisdiction | Judicial/quasi-judicial bodies only |
| Certiorari | “To certify” | Quash an order of a lower court/tribunal | Judicial/quasi-judicial bodies only |
| Quo Warranto | “By what authority” | Challenge holding of a public office | Only substantive public offices created by Constitution/statute |
Key Articles in Fundamental Rights
| Article | Provision |
|---|---|
| Art 14 | Equality before law & equal protection of laws IMP |
| Art 15 | No discrimination on religion, race, caste, sex, place of birth; State CAN make special provisions for women, children, SC/ST/OBC |
| Art 16 | Equality of opportunity in public employment; reservation for SC/ST/OBC |
| Art 17 | Abolition of untouchability (Protection of Civil Rights Act, 1955) PYQ |
| Art 18 | Abolition of titles except military/academic awards |
| Art 20 | Protection against conviction for past offences (no ex post facto law), double jeopardy, self-incrimination |
| Art 21 | Right to life and personal liberty — most litigated FR; includes right to privacy, livelihood, health, education, shelter IMP |
| Art 21A | Right to free & compulsory education (6–14 years) — added by 86th Amendment, 2002 |
| Art 22 | Grounds of arrest must be communicated; right to consult a lawyer; produced before a magistrate within 24 hours; MISA/NSA are preventive-detention laws |
| Art 32 | Right to move the SC — “heart and soul of the Constitution” (Ambedkar); cannot be suspended except during a National Emergency |
FRs vs DPSPs: Art 31C (added by the 25th Amendment) — laws implementing Art 39(b) and (c) DPSPs cannot be challenged on Art 14/19 grounds. Validated in Kesavananda Bharati, but Parliament cannot use DPSPs to destroy the basic structure.
📋 Directive Principles of State Policy (Art 36–51, Part IV)
DPSPs are non-justiciable (cannot be enforced by courts) but fundamental in governance. Borrowed from the Irish Constitution. Described as an “Instrument of Instructions” to the State. Ambedkar called them a “novel feature” of the Constitution.
Classification of DPSPs
🔴 Socialistic DPSPs
- Art 38 — Promote social order, reduce inequalities
- Art 39 — Equal pay for equal work; adequate means of livelihood; ownership of material resources for common good; no concentration of wealth IMP
- Art 39A — Free legal aid (42nd Amendment)
- Art 41 — Right to work, education, public assistance
- Art 42 — Maternity relief, just conditions of work
- Art 43 — Living wage for workers
- Art 43A — Participation of workers in management (42nd Amendment)
- Art 47 — Nutrition, standard of living, prohibition of intoxicants
🔵 Gandhian DPSPs
- Art 40 — Organise village panchayats PYQ
- Art 43 — Promote cottage industries
- Art 43B — Cooperative societies (97th Amendment)
- Art 46 — Promote educational interests of SC/ST/weaker sections
- Art 47 — Prohibition of slaughter of cows, calves, milch and draught cattle
- Art 48 — Organise agriculture and animal husbandry on modern lines
🟢 Liberal-Intellectual DPSPs
- Art 44 — Uniform Civil Code IMP
- Art 45 — Early childhood care (after 86th Amendment — free education up to 6 years)
- Art 48 — Environment protection, safeguard forests (42nd Amendment)
- Art 49 — Protection of monuments
- Art 50 — Separation of judiciary from executive
- Art 51 — Promote international peace; respect international law
Important DPSPs — Quick Reference
| Art | DPSP | Implemented via |
|---|---|---|
| Art 39(b) | Material resources for common good | Land reform laws, nationalisation |
| Art 40 | Village Panchayats | 73rd Amendment, 1992 |
| Art 44 | Uniform Civil Code | Pending; debated in Shah Bano, Triple Talaq cases |
| Art 45 | Free & compulsory education | 86th Amendment → Art 21A (made an FR) |
| Art 48A | Protect environment, forests, wildlife | Environmental laws; Art 51A(g) makes it an FD |
| Art 50 | Separate judiciary from executive | CrPC provisions |
🎯 Fundamental Duties (Art 51A, Part IV-A)
Added by the 42nd Amendment, 1976 (on the Swaran Singh Committee's recommendations). Originally 10 duties; the 11th was added by the 86th Amendment, 2002 (duty of parents to educate children aged 6–14). Not justiciable. Borrowed from the USSR Constitution.
| # | Fundamental Duty |
|---|---|
| 1 | Abide by the Constitution and respect the national flag and National Anthem |
| 2 | Cherish and follow the noble ideals of the national struggle |
| 3 | Uphold and protect the sovereignty, unity and integrity of India |
| 4 | Defend the country; render national service when called upon |
| 5 | Promote harmony; renounce derogatory practices against women |
| 6 | Value and preserve the rich heritage of composite culture |
| 7 | Protect and improve the natural environment PYQ |
| 8 | Develop scientific temper, humanism, spirit of inquiry and reform |
| 9 | Safeguard public property; abjure violence |
| 10 | Strive towards excellence in individual and collective activity |
| 11 | Duty of a parent/guardian to provide education to a child aged 6–14 (86th Amendment, 2002) |
Verma Committee (1999): Recommended making some duties justiciable. Courts have used FDs to uphold laws — if a law is enacted to enforce FDs, it cannot be challenged as violating FRs (Rangarajan case).
🏛️ Parliament (Articles 79–122, Part V)
Parliament of India = President + Lok Sabha (House of the People) + Rajya Sabha (Council of States). Unicameral at state level (most states); bicameral in 6 states (Andhra Pradesh, Bihar, Karnataka, Maharashtra, Telangana, Uttar Pradesh).
Lok Sabha (Lower House)
| Maximum strength | 552 (530 states + 20 UTs + 2 nominated Anglo-Indians — nomination removed by 104th Amendment, 2020) |
| Present strength | 543 (elected) |
| Tenure | 5 years (can be extended during a National Emergency, year by year) |
| Minimum age | 25 years |
| Presiding officer | Speaker (elected by Lok Sabha members) |
| Quorum | 1/10th of total membership (55 members) |
| Speaker's vote | Speaker does not vote; casts a vote only to break a tie |
Rajya Sabha (Upper House)
| Maximum strength | 250 (238 elected from states/UTs + 12 nominated by President) |
| Present strength | 245 |
| Nature | Permanent body — cannot be dissolved; 1/3rd of members retire every 2 years |
| Term of each member | 6 years |
| Minimum age | 30 years |
| Presiding officer | Vice President is ex-officio Chairman; Deputy Chairman elected by members |
| Special powers | Art 249 — enable Parliament to legislate on the State List; Art 312 — create a new all-India service |
Types of Bills
| Type | Definition | Special Procedure |
|---|---|---|
| Money Bill (Art 110) | Only taxation, borrowing, Consolidated Fund | Originates only in Lok Sabha; RS can only suggest changes; must return in 14 days; Speaker certifies IMP |
| Constitutional Amendment (Art 368) | To amend the Constitution | 2/3rd majority in each House + 50% of states (for certain provisions); no joint sitting |
Joint Sitting (Art 108)
- Convened by the President; presided over by the Speaker of the Lok Sabha.
- Only for Ordinary Bills and Financial Bills (Category II) — never Money Bills or Constitutional Amendments.
- Only 3 joint sittings so far: Dowry Prohibition Bill (1961), Banking Service Commission Repeal Bill (1978), Prevention of Terrorism Bill (2002).
👤 President of India (Articles 52–78)
| Elected by | Electoral College — elected members of both Houses of Parliament + elected members of State Legislative Assemblies + elected members of Delhi, Puducherry and J&K assemblies |
| Election method | Single Transferable Vote (proportional representation), secret ballot |
| Term | 5 years; eligible for re-election any number of times |
| Impeachment | Art 61; by either House; 2/3rd special majority; NOT done by the judiciary |
Pardoning Powers (Art 72) PYQ
- Pardon: Complete absolution — removes conviction and sentence
- Reprieve: Temporary suspension of sentence
- Respite: Lesser punishment for special circumstances
- Remission: Reduce sentence without changing its nature
- Commutation: Change to a lesser punishment (death → life)
- Extends to court-martial and capital punishment — distinguishes it from the Governor's power (Art 161)
Ordinance Power (Art 123) PYQ
- Only when Parliament is not in session and urgent action is needed
- Has the same force as an Act of Parliament
- Lapses 6 weeks after Parliament reassembles if not approved
- Cannot be issued to amend the Constitution
- DC Wadhwa — repeated re-promulgation without approval is a fraud on the Constitution
🏛️ Prime Minister & Council of Ministers (Art 74–75)
India follows the Westminster model. President is the constitutional/nominal head; PM is the real executive head. Art 74 — Council of Ministers aids and advises the President, who acts on this advice. 44th Amendment — President can ask for reconsideration once, but must accept the revised advice.
- Collective Responsibility (Art 75(3)): the Council of Ministers is collectively responsible to the Lok Sabha.
- 91st Amendment, 2003: Council of Ministers cannot exceed 15% of the Lok Sabha's total strength.
- A minister who is not an MP must become one within 6 months or cease to be a minister.
🏛️ Governor (Articles 153–167)
Constitutional head of a State. Appointed by the President; holds office “during the pleasure of the President.” The same person can be Governor of two or more states.
- Can reserve any State bill for the President's consideration.
- Art 356 — recommends President's Rule and implements it as the President's agent.
- Pardoning power (Art 161) excludes court-martial cases and death sentences (only the President can pardon a death sentence).
🏛️ State Legislature (Articles 168–212)
| Feature | Vidhan Sabha (Lower House) | Vidhan Parishad (Upper House) |
|---|---|---|
| States having it | All states + Delhi + Puducherry + J&K | Only 6 states: Andhra Pradesh, Bihar, Karnataka, Maharashtra, Telangana, Uttar Pradesh |
| Election | Direct — by voters | Indirect — MLAs, local bodies, teachers, graduates; Governor nominates 1/6th |
| Money Bills | Originates only here | Cannot originate; delay only 14 days |
⚖️ Judiciary (Articles 124–147 for SC; 214–231 for HC)
See the dedicated Judiciary & Landmark Judgments page for the court system, all Chief Justices, and 14 landmark Supreme Court judgments in full depth. Quick reference below.
Jurisdiction of the Supreme Court PYQ
| Jurisdiction | Details |
|---|---|
| Original (Art 131) | Centre–State, State–State disputes; exclusive jurisdiction |
| Writ (Art 32) | Enforcement of Fundamental Rights |
| Appellate (Art 132–136) | Constitutional, civil, criminal appeals; Special Leave Petition (136) is discretionary and covers any court/tribunal |
| Advisory (Art 143) | President can refer a question of law/fact of public importance; opinion is not binding |
| Review (Art 137) | SC can review its own judgments |
Collegium System PYQ
- Emerged from three judges' cases: SP Gupta (1981), SC Advocates-on-Record (1993), In Re Presidential Reference (1998) — settling a Collegium of the CJI + 4 senior SC judges.
- NJAC (99th Amendment, 2014) was struck down in 2015 as violating the basic structure (independence of the judiciary).
🏛️ Constitutional Bodies
Election Commission (Art 324)
- Superintendence of elections to Parliament, State Legislatures, President and VP
- Multi-member body since 1993 (CEC + 2 ECs)
- 2023 Act — selection committee includes PM, Home Minister, Leader of Opposition (removes CJI)
CAG (Art 148) PYQ
- “Guardian of the Public Purse” (Ambedkar)
- Audits all Union and State receipts and expenditure
- Reports examined by the Public Accounts Committee, chaired by the Leader of Opposition in the Lok Sabha
UPSC (Art 315–323)
- Recruitment to civil services; advises on service matters
- Removed only for misbehaviour, by SC inquiry
Finance Commission (Art 280) PYQ
- Constituted every 5 years by the President
- Recommends tax-revenue distribution and grants-in-aid
- 16th Finance Commission (2025–26) — Chairman: Arvind Panagariya
Statutory Bodies (not in the Constitution, but important)
| Body | Established by | Function |
|---|---|---|
| NITI Aayog | Cabinet Resolution, 2015 | Policy advisory; replaced the Planning Commission |
| Lokpal | Lokpal and Lokayuktas Act, 2013 | Investigates corruption by public servants, including the PM (with restrictions) |
🚨 Emergency Provisions (Articles 352–360)
Three types of Emergency in India — each with different grounds, effect and procedure. Critically important for UPSC, both Prelims and Mains.
| Feature | National Emergency (Art 352) | President's Rule (Art 356) | Financial Emergency (Art 360) |
|---|---|---|---|
| Grounds | War, external aggression, armed rebellion | Failure of constitutional machinery in a State | Threat to financial stability |
| Duration | 6 months, renewable indefinitely | Max 3 years | Indefinite, with Parliamentary approval |
| Effect on FRs | Art 19 suspended automatically; Art 20 & 21 cannot be suspended | No direct effect | No direct effect |
| Historical use | 1962, 1971, 1975 (revoked 1977) | 100+ times | Never proclaimed |
S.R. Bommai Case (1994) — Landmark
- President's Rule is subject to judicial review.
- The test of majority must be on the floor of the House.
- Secularism is part of the basic structure.
📑 Schedules of the Constitution
| Schedule | Subject | Key Content |
|---|---|---|
| 1st | States and UTs | Names of 28 states, 8 UTs and their territories PYQ |
| 2nd | Emoluments | Salaries of President, Governors, Speaker, CJI, etc. |
| 3rd | Oaths and Affirmations | Forms of oath for President, ministers, MPs, judges |
| 4th | Rajya Sabha seat allocation | Seats allocated to each state/UT PYQ |
| 5th | Scheduled Areas and Tribes | Administration of SC/ST areas |
| 6th | Tribal Areas in the North-East | Autonomous District Councils IMP |
| 7th | Division of Powers | Union (97), State (66), Concurrent (47) Lists IMP |
| 8th | Official Languages | 22 scheduled languages PYQ |
| 9th | Land Reform Acts | Immune from FR review, but subject to basic-structure review after Coelho (2007) if added after 24 April 1973 |
| 10th | Anti-Defection Law | 52nd Amendment, 1985 IMP |
| 11th | Panchayati Raj | 29 subjects (73rd Amendment) |
| 12th | Municipalities | 18 functions (74th Amendment) |
🔧 Key Constitutional Amendments PYQ
| Amendment | Year | Key Changes |
|---|---|---|
| 42nd | 1976 | “Mini-Constitution” — added Socialist, Secular to the Preamble; added Fundamental Duties; made DPSPs superior to FRs |
| 44th | 1978 | Reversed many 42nd Amendment changes; removed Right to Property from FRs; Art 20/21 cannot be suspended in Emergency |
| 73rd | 1992 | Panchayati Raj — constitutional status; 11th Schedule |
| 74th | 1992 | Municipalities — constitutional status; 12th Schedule |
| 86th | 2002 | Art 21A — Right to Education (6–14 years) as an FR |
| 101st | 2016 | GST — concurrent power to Centre and States PYQ |
| 103rd | 2019 | 10% EWS reservation |
| 104th | 2020 | Extended SC/ST reservation in legislatures to 2030; removed Anglo-Indian nomination |
Basic Structure Doctrine — Kesavananda Bharati v State of Kerala (1973): Parliament cannot amend the basic structure of the Constitution — supremacy of the Constitution, secularism, separation of powers, federalism, independence of the judiciary and Fundamental Rights among its core elements.
🗺️ Federalism & Centre-State Relations
India is “quasi-federal” or “federal with a strong unitary bias.” S.R. Bommai (1994) held that federalism is part of the basic structure.
Panchayati Raj — 73rd Amendment, 1992 PYQ
| Three-tier structure | Gram Panchayat → Panchayat Samiti → Zila Parishad |
| Art 243D | Reservation — SC/ST proportional to population; minimum 1/3rd for women |
| Art 243G | Devolution of powers — 29 subjects in the 11th Schedule |
Content compiled from M. Laxmikanth's Indian Polity, the Constitution of India, Supreme Court judgments and UPSC previous-year questions. Always verify with the Bare Act at legislative.gov.in and the official syllabus at upsc.gov.in.