Why this chapter matters for UPSC: The Indian Constitution is the single most tested topic in UPSC GS2. Every aspect — from the Preamble to Schedule 7 to constitutional bodies — is fair game for both Prelims (MCQs on article numbers, amendments) and Mains (federalism, judicial review, amendment procedure). Mastering this chapter gives you the conceptual backbone for the entire polity syllabus.

PART 1 — Quick Reference Tables

Key Features of the Indian Constitution

Feature Constitutional Provision UPSC Relevance
Federalism Article 1 (India = Union of States); 7th Schedule Centre-State relations; GST (101st Amendment)
Parliamentary Democracy Articles 52–75 (President, PM, Council of Ministers) Westminster model vs Presidential
Separation of Powers Legislature (Parliament), Executive (President/Cabinet), Judiciary (SC + HCs) Not strict like USA; functional separation
Fundamental Rights Part III, Articles 12–35 Justiciable; enforced via Article 32 (SC) / 226 (HC)
DPSP Part IV, Articles 36–51 Non-justiciable; govern policy
Fundamental Duties Part IVA, Article 51A Added 42nd Amendment 1976; 11th duty by 86th Amendment 2002
Independent Judiciary Articles 124–147 Judicial review; Basic Structure Doctrine
Secularism Articles 25–28; "secular" in Preamble (42nd Amendment 1976) No state religion
Universal Adult Franchise Article 326 Voting age lowered 21→18 by 61st Amendment 1988

7th Schedule — Legislative Lists

List Number of Subjects Examples
Union List 97 subjects Defence, foreign affairs, atomic energy, railways, banking
State List 66 subjects Police, public health, agriculture, land (note: GST reduced state subjects via 101st Amendment)
Concurrent List 47 subjects Education, forests, marriage, electricity, criminal law

Fundamental Rights — Part III (Articles 12–35)

Right Articles Key Points
Right to Equality 14–18 Equality before law; no discrimination; abolition of untouchability (Art 17); abolition of titles (Art 18)
Right to Freedom 19–22 6 freedoms (Art 19); protection against conviction (Art 20); protection of life/personal liberty (Art 21); right to education 6–14 yrs (Art 21A); protection against arrest (Art 22)
Right Against Exploitation 23–24 Prohibition of trafficking and forced labour (Art 23); prohibition of child labour in hazardous industries below 14 years (Art 24)
Right to Freedom of Religion 25–28 Freedom of conscience (Art 25); religious institutions (Art 26); no tax for religion (Art 27); no religious instruction in state-funded schools (Art 28)
Cultural and Educational Rights 29–30 Protection of minority languages/cultures (Art 29); minorities' right to establish/administer educational institutions (Art 30)
Right to Constitutional Remedies 32 "Heart and soul of the Constitution" — Dr B.R. Ambedkar; writs: habeas corpus, mandamus, certiorari, prohibition, quo warranto

PART 2 — Detailed Notes

Why We Need a Constitution

Key Term

A Constitution is the supreme law of a country. It defines the nature of the state, sets limits on the exercise of power by the government, guarantees rights to citizens, and provides the framework for governance. Without a Constitution, majority rule can trample minority rights.

India's Constitution was framed by the Constituent Assembly (1946–1949). It was adopted on 26 November 1949 (Constitution Day) and came into force on 26 January 1950 (Republic Day). Dr B.R. Ambedkar chaired the Drafting Committee.

Federalism

UPSC Connect

UPSC GS2 — Centre-State Relations: India is a federal state with a strong unitary bias. The 7th Schedule divides legislative powers into three lists. Parliament can legislate on State List subjects during a National Emergency (Art 352), when Rajya Sabha passes a resolution (Art 249), or when implementing international treaties (Art 253). The 101st Amendment (2017) introduced GST, subsuming several state subjects (e.g., sales tax, octroi) into a concurrent framework governed by the GST Council.

Parliamentary Democracy

The President (Articles 52–62) is the nominal/constitutional head. The Prime Minister (Articles 74–75) is the real executive head. The Council of Ministers is collectively responsible to the Lok Sabha (Article 75). Parliament consists of the Lok Sabha (House of the People) and the Rajya Sabha (Council of States).

Directive Principles of State Policy (Part IV)

Explainer

DPSPs (Articles 36–51) are non-justiciable — they cannot be enforced in courts. But the Supreme Court has held (Minerva Mills, 1980) that FRs and DPSPs must be read harmoniously — neither can be used to destroy the other. DPSPs are classified as:

  • Socialist DPSPs: Equal pay for equal work (Art 39d), right to work (Art 41), maternity relief (Art 42)
  • Gandhian DPSPs: Village panchayats (Art 40), cottage industries (Art 43), prohibition of intoxicants (Art 47)
  • Liberal-Intellectual DPSPs: Uniform Civil Code (Art 44), separation of judiciary from executive (Art 50), international peace (Art 51)

Fundamental Duties (Article 51A)

Added by the 42nd Amendment 1976 (originally 10 duties). The 86th Amendment 2002 added the 11th duty: "It shall be the duty of every citizen who is a parent or guardian to provide opportunities for education to his child or ward between the age of six and fourteen years." Fundamental Duties are non-justiciable but morally binding.

UPSC Connect

UPSC GS2 — Fundamental Duties: The Verma Committee (1999) recommended making Fundamental Duties enforceable. Courts have used Art 51A to uphold laws that might otherwise appear to restrict FRs — if a law promotes a Fundamental Duty, the courts tend to sustain it (e.g., environmental protection laws upheld via Art 51A(g)).

Amendment Procedure (Article 368)

Key Term

Three levels of amendment:

  1. Simple majority (as in ordinary legislation): Admission of new states, creation of new states (Art 2–4), abolition of Legislative Councils
  2. Special majority (2/3 of members present and voting + majority of total membership of each house): Most constitutional provisions
  3. Special majority + ratification by at least half the state legislatures: Federal provisions — election of President, distribution of legislative powers (7th Schedule), representation of states in Parliament, Art 368 itself

Constitutional Bodies

Body Article Key Facts
Election Commission 324 Multi-member since 1989; Chief Election Commissioner removable only by impeachment procedure
Comptroller and Auditor General (CAG) 148 Audits accounts of Centre and States; reports to Parliament
Finance Commission 280 Quinquennial; recommends Centre-State tax sharing; 16th FC (2024)
UPSC 315 Conducts civil services examinations; Chairman removable only by President after SC inquiry
State PSCs 315 State-level recruitment; joint PSCs possible

Basic Structure Doctrine

UPSC Connect

UPSC GS2 — Judicial Review: In Kesavananda Bharati v. State of Kerala (1973), a 13-judge bench (7:6) held that Parliament can amend the Constitution but cannot destroy its Basic Structure. Elements of Basic Structure include: supremacy of the Constitution, republican and democratic form of government, secular character, separation of powers, federal character, judicial review, free and fair elections, unity and integrity of India. This doctrine has been applied in numerous subsequent cases (Minerva Mills 1980, S.R. Bommai 1994, etc.).

44th Amendment (1978)

The 44th Amendment removed the Right to Property (Articles 19(1)(f) and 31) from the list of Fundamental Rights, converting it into a constitutional/legal right under Article 300A. It also reversed several provisions introduced by the controversial 42nd Amendment (1976) that had tilted power towards the executive.

Exam Strategy

Prelims traps:

  • The 42nd Amendment (1976) added "socialist," "secular," and "integrity" to the Preamble — not the original 1950 text
  • Article 32 = SC writs (only for FR violation); Article 226 = HC writs (for any legal right, not just FRs — HC jurisdiction is broader)
  • Article 21A (Right to Education, 6–14 years) was added by 86th Amendment 2002, not by the original Constitution
  • Voting age was lowered from 21 to 18 by the 61st Amendment 1988, not the 42nd
  • The State List originally had 66 subjects; this has been reduced by the 101st Amendment (GST)
  • Rajya Sabha has 250 members maximum (238 elected + 12 nominated); current strength is 245

Mains angles:

  • Critically examine the Basic Structure Doctrine — is it a judicial overreach or essential safeguard?
  • DPSP vs Fundamental Rights conflict — evolution from State of Madras v. Champakam (1951) to Minerva Mills (1980)
  • Cooperative federalism and the GST Council as a constitutional innovation

Previous Year Questions

Prelims:

  1. The power of the Supreme Court of India to decide disputes between the Centre and the States falls under its:
    (a) Advisory jurisdiction
    (b) Appellate jurisdiction
    (c) Original jurisdiction
    (d) Writ jurisdiction

  2. Which of the following is/are included in the Basic Structure of the Indian Constitution as per the Kesavananda Bharati judgment?

    1. Supremacy of the Constitution
    2. Secular character of the Constitution
    3. Federal character of the Constitution
      (d) All of the above
      (CSE Prelims 2021 pattern)

Mains:

  1. "The Directive Principles of State Policy (DPSP) and Fundamental Rights are complementary and supplementary to each other." Examine this statement with reference to the Supreme Court's evolving jurisprudence. (CSE Mains 2022, GS Paper 2, 15 marks)

  2. Discuss the significance of the Basic Structure Doctrine in protecting the democratic character of the Indian Constitution. (CSE Mains 2020, GS Paper 2, 15 marks)