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Samacheer Kalvi 10th Social Science Chapter 18 Exercise Solutions — Indian Constitution | KalviGavani

Tamil Nadu Class 10 Social Science Chapter 18 Indian Constitution exercise solutions guide with one-mark answers, short answers, long-answer points, and revision checklist.

Updated 15 June 202617 min read

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This page contains complete exercise solutions for Samacheer Kalvi Class 10 Social Science Chapter 18 — Indian Constitution. Read the textbook chapter first, then use this guide to revise and practise answers. Each section follows the exam pattern: MCQs, fill-in-the-blanks, true or false, match the following, short answers, and detailed answers. Write answers in your own words during the exam but keep the key points intact.


Key Concepts (Quick Recap)

ConceptWhat to Remember
ConstitutionThe supreme law of India that came into force on 26 January 1950
PreambleIntroduction declaring India a Sovereign, Socialist, Secular, Democratic Republic
Fundamental RightsJusticiable rights under Articles 12–35 — six categories
Directive PrinciplesNon-justiciable guidelines under Articles 36–51 for welfare governance
Fundamental DutiesObligations of citizens under Article 51A — added by the 42nd Amendment (1976)
Constituent AssemblyBody formed in 1946 to draft the Constitution; chaired by Dr. Rajendra Prasad
Drafting CommitteeChaired by Dr. B.R. Ambedkar; prepared the draft Constitution
Federal with Unitary FeaturesStates have powers but the Centre is stronger during emergencies
Single CitizenshipEvery Indian is a citizen of India alone, not of individual states
SecularismState treats all religions equally — no official religion

I. Choose the Best Answer (MCQs)

1. The Constitution of India came into force on
Answer

(a) 15 August 1947 (b) 26 November 1949 (c) 26 January 1950 (d) 2 October 1950

Answer(c) 26 January 1950 The Constitution was adopted on 26 November 1949 but came into effect on 26 January 1950, celebrated as Republic Day.

2. Who was the Chairman of the Drafting Committee of the Constituent Assembly?
Answer

(a) Jawaharlal Nehru (b) Dr. B.R. Ambedkar (c) Dr. Rajendra Prasad (d) Sardar Vallabhbhai Patel

Answer(b) Dr. B.R. Ambedkar Dr. Ambedkar chaired the Drafting Committee and was the chief architect of the Constitution, earning the title "Father of the Indian Constitution."

3. Which Article of the Constitution deals with Fundamental Duties?
Answer

(a) Article 14 (b) Article 21 (c) Article 32 (d) Article 51A

Answer(d) Article 51A Article 51A was added by the 42nd Constitutional Amendment in 1976 and lists eleven Fundamental Duties of citizens.

4. The Preamble declares India as a
Answer

(a) Sovereign Republic (b) Sovereign Socialist Secular Democratic Republic (c) Democratic Republic (d) Socialist Republic

Answer(b) Sovereign Socialist Secular Democratic Republic The words "Socialist" and "Secular" were added by the 42nd Amendment in 1976. The Preamble describes the full nature of the Indian state.

5. Directive Principles of State Policy are contained in
Answer

(a) Part III (b) Part IV (c) Part IVA (d) Part V

Answer(b) Part IV Part IV (Articles 36–51) contains the Directive Principles. They are non-justiciable and guide the government in making policies for the welfare of the people.

6. Right to Constitutional Remedies is under which Article?
Answer

(a) Article 14 (b) Article 19 (c) Article 21 (d) Article 32

Answer(d) Article 32 Article 32 gives citizens the right to move the Supreme Court for the enforcement of Fundamental Rights. Dr. Ambedkar called it the "heart and soul" of the Constitution.

7. The maximum number of Fundamental Duties listed in Article 51A is
Answer

(a) 8 (b) 9 (c) 10 (d) 11

Answer(d) 11 Originally 10 duties were added by the 42nd Amendment (1976). The 11th duty was added by the 86th Amendment (2002) — providing education to children aged 6–14.

8. The Constitution of India has how many Schedules?
Answer

(a) 8 (b) 10 (c) 12 (d) 14

Answer(c) 12 Originally 8 schedules, now 12 after amendments. Schedules contain details such as oaths, boundaries, languages, and allocation of subjects.

9. Which one of the following is NOT a Fundamental Right?
Answer

(a) Right to Equality (b) Right to Freedom (c) Right to Property (d) Right against Exploitation

Answer(c) Right to Property The Right to Property was originally a Fundamental Right under Article 31 but was removed by the 44th Amendment (1978). It is now a legal right under Article 300A.

10. The idea of the Constitution was first given by
Answer

(a) M.N. Roy (b) Jawaharlal Nehru (c) Mahatma Gandhi (d) Dr. B.R. Ambedkar

Answer(a) M.N. Roy M.N. Roy, a pioneer of the communist movement in India, was the first to put forward the idea of a Constituent Assembly for India in 1934.

II. Fill in the Blanks

1. The Constitution of India was adopted on ________. Answer: 26 November 1949

2. The Chairman of the Constituent Assembly was ________. Answer: Dr. Rajendra Prasad

3. The words "Socialist" and "Secular" were added to the Preamble by the ________ Amendment. Answer: 42nd

4. Article 51A deals with ________. Answer: Fundamental Duties

5. The right to move the Supreme Court for the enforcement of Fundamental Rights is under Article ________. Answer: 32

6. Directive Principles are contained in ________ of the Constitution. Answer: Part IV

7. The Constituent Assembly took ________ years to draft the Constitution. Answer: 2 years, 11 months and 18 days

8. India has a ________ citizenship. Answer: Single

9. The Constitution of India originally had ________ schedules. Answer: 8

10. The procedure to amend the Constitution is described in Article ________. Answer: 368


III. True or False

1. The Preamble is part of the Constitution.
AnswerTrue — The Supreme Court confirmed in the Kesavananda Bharati case (1973) that the Preamble is part of the Constitution.
2. Directive Principles are justiciable in a court of law.
AnswerFalse — Directive Principles are non-justiciable. They are guidelines for governance and cannot be enforced by courts, unlike Fundamental Rights.
3. India has dual citizenship like the United States.
AnswerFalse — India follows the principle of single citizenship. Every citizen is a citizen of India alone, not of any particular state.
4. Fundamental Rights can be suspended during a National Emergency.
AnswerTrue — Under Article 359, the President can suspend the right to move courts for enforcement of Fundamental Rights (except Articles 20 and 21) during a National Emergency.
5. The Constitution of India is entirely rigid.
AnswerFalse — The Indian Constitution is both rigid and flexible. Some provisions can be amended by a simple majority, while others require a special majority or ratification by states.
6. Dr. B.R. Ambedkar was the President of the Constituent Assembly.
AnswerFalse — Dr. Rajendra Prasad was the President (Chairman) of the Constituent Assembly. Dr. Ambedkar was the Chairman of the Drafting Committee.
7. The 86th Amendment added a Fundamental Duty related to education.
AnswerTrue — The 86th Amendment (2002) added the 11th Fundamental Duty: providing opportunities for education to children aged 6–14 years.
8. The Constitution guarantees the Right to Property as a Fundamental Right.
AnswerFalse — The Right to Property was removed from Fundamental Rights by the 44th Amendment (1978). It is now only a legal right under Article 300A.

IV. Match the Following

Column AColumn B
1. Preamble(c) Introduction to the Constitution
2. Fundamental Rights(e) Articles 12–35
3. Directive Principles(a) Articles 36–51
4. Fundamental Duties(d) Article 51A
5. Amendment Procedure(b) Article 368
Answer1 → c, 2 → e, 3 → a, 4 → d, 5 → b

Column AColumn B
1. Dr. Rajendra Prasad(d) President of Constituent Assembly
2. Dr. B.R. Ambedkar(a) Chairman of Drafting Committee
3. 26 January 1950(e) Constitution came into force
4. 42nd Amendment(c) Added Socialist and Secular to Preamble
5. 44th Amendment(b) Removed Right to Property
Answer1 → d, 2 → a, 3 → e, 4 → c, 5 → b

V. Short Answer Questions

1. Why do we need a Constitution?
Answer

A Constitution is needed because it defines the structure and powers of government, limits the authority of rulers, protects the fundamental rights of citizens, and provides a framework for peaceful governance. Without a Constitution, there would be no legal boundary on government power and no guarantee of citizens' rights.


2. What is the significance of the Preamble?
Answer

The Preamble reflects the philosophy and objectives of the Constitution. It declares India as a Sovereign, Socialist, Secular, Democratic Republic and guarantees justice, liberty, equality, and fraternity to all citizens. It serves as the guiding vision for interpreting the Constitution and was confirmed as part of the Constitution by the Supreme Court.


3. What are Fundamental Rights? Name any three.
Answer

Fundamental Rights are basic rights guaranteed to all citizens by the Constitution under Articles 12–35. They are justiciable, meaning citizens can approach courts if these rights are violated. Three Fundamental Rights are: (1) Right to Equality (Article 14–18), (2) Right to Freedom (Article 19–22), and (3) Right against Exploitation (Article 23–24).


4. Differentiate between Fundamental Rights and Directive Principles.
Answer

Fundamental Rights are justiciable and enforceable by courts, while Directive Principles are non-justiciable and serve as guidelines. Fundamental Rights are contained in Part III (Articles 12–35), while Directive Principles are in Part IV (Articles 36–51). Fundamental Rights protect individual liberties, while Directive Principles aim at social and economic welfare.


5. What are Fundamental Duties? When were they added?
Answer

Fundamental Duties are the moral obligations of every citizen listed under Article 51A. They were added to the Constitution by the 42nd Amendment in 1976 on the recommendation of the Swaran Singh Committee. Originally ten duties were listed; an eleventh was added by the 86th Amendment in 2002.


6. Why is the Indian Constitution called federal with unitary features?
Answer

The Indian Constitution divides powers between the Centre and the states, which is a federal feature. However, the Centre holds more power — it can override state laws during emergencies, appoint the Governor, and change state boundaries. A single Constitution, single citizenship, and a strong Centre during emergencies make it unitary in spirit.


7. What do you mean by Secularism as per the Indian Constitution?
Answer

Secularism means the state does not have any official religion and treats all religions equally. The state does not discriminate against any citizen on the basis of religion. Every person has the right to profess, practise, and propagate any religion. This principle is enshrined in the Preamble and in the Right to Freedom of Religion (Articles 25–28).


8. Who was Dr. B.R. Ambedkar and what was his role in making the Constitution?
Answer

Dr. B.R. Ambedkar was a scholar, social reformer, and the Chairman of the Drafting Committee of the Constituent Assembly. He played the leading role in drafting the Constitution and defending its provisions in the Assembly debates. He is called the "Father of the Indian Constitution" for his central contribution to its framing.


VI. Detailed Answer Questions

1. Explain the salient features of the Indian Constitution.
Answer
  • Written Constitution: The Indian Constitution is the longest written Constitution in the world, originally containing 395 Articles, 22 Parts, and 8 Schedules.
  • Sovereign, Socialist, Secular, Democratic Republic: The Preamble declares the nature of the Indian state. India is internally and externally sovereign, treats all religions equally, and follows democratic governance.
  • Federal with Unitary Features: Powers are divided between the Centre and states, but the Centre is stronger. During emergencies, the government becomes unitary in character.
  • Fundamental Rights: Six categories of justiciable rights (Articles 12–35) protect individual liberty and equality.
  • Directive Principles: Non-justiciable guidelines (Articles 36–51) direct the government towards welfare policies.
  • Fundamental Duties: Eleven duties under Article 51A remind citizens of their obligations.
  • Independent Judiciary: The judiciary is independent of the executive and legislature, ensuring the rule of law and protection of rights.
  • Single Citizenship: Every Indian is a citizen of India alone, promoting national unity.
  • Flexible and Rigid: Some parts can be amended by simple majority, others need special majority or state ratification, making it both flexible and rigid.
  • Emergency Provisions: The Constitution provides for three types of emergencies — National, State, and Financial — showing its unitary tilt during crises.

2. Describe the Fundamental Rights guaranteed by the Indian Constitution.
Answer
  • Right to Equality (Articles 14–18): Guarantees equality before law, prohibits discrimination on grounds of religion, race, caste, sex, or place of birth, and abolishes untouchability and titles.
  • Right to Freedom (Articles 19–22): Includes six freedoms — speech, assembly, movement, residence, profession, and property (subject to reasonable restrictions). Also includes protection against arbitrary arrest and detention.
  • Right against Exploitation (Articles 23–24): Prohibits human trafficking, forced labour (begar), and child labour in hazardous industries below the age of 14.
  • Right to Freedom of Religion (Articles 25–28): Guarantees freedom of conscience, right to profess, practise, and propagate religion, and ensures the state does not favour any religion.
  • Cultural and Educational Rights (Articles 29–30): Protects the interests of minorities by giving them the right to conserve their culture, language, and script, and to establish educational institutions.
  • Right to Constitutional Remedies (Article 32): Empowers citizens to move the Supreme Court for enforcement of Fundamental Rights. Dr. Ambedkar called it the "heart and soul" of the Constitution.

3. Discuss the Directive Principles of State Policy and their importance.
Answer
  • The Directive Principles are contained in Part IV (Articles 36–51) of the Constitution, inspired by the Irish Constitution.
  • They are non-justiciable — courts cannot enforce them, but they are fundamental in governance and the government must apply them while making laws.
  • Socialist Principles: Include equitable distribution of wealth, equal pay for equal work, protection of children, and promotion of cottage industries.
  • Gandhian Principles: Include organising village panchayats, promoting educational and economic interests of Scheduled Castes and Scheduled Tribes, and prohibiting intoxicating drinks.
  • Liberal-Intellectual Principles: Include separation of judiciary from executive, promotion of international peace, and uniform civil code.
  • Their importance lies in guiding the government towards a welfare state. They complement Fundamental Rights — while Rights protect individual liberty, Directive Principles promote social and economic democracy.
  • Several laws and policies such as the Minimum Wages Act, MGNREGA, and Panchayati Raj are based on Directive Principles.
  • Though non-justiciable, courts consider them while interpreting laws, and over time many have been implemented through legislation.

4. Explain the role of the Constituent Assembly in framing the Indian Constitution.
Answer
  • The Constituent Assembly was formed in 1946 under the Cabinet Mission Plan with 389 members elected by provincial legislatures.
  • Dr. Rajendra Prasad was elected as its President (Chairman).
  • Several committees were formed to prepare reports on different aspects — the Union Powers Committee, Fundamental Rights Committee, and Union Constitution Committee.
  • The Drafting Committee, chaired by Dr. B.R. Ambedkar, was the most important. It prepared the draft based on the reports of other committees.
  • The Assembly held 11 sessions over 2 years, 11 months, and 18 days. The draft was discussed clause by clause and amendments were considered.
  • The Constitution was adopted on 26 November 1949 and came into force on 26 January 1950.
  • The Assembly borrowed features from several constitutions — Fundamental Rights from the USA, Directive Principles from Ireland, Parliamentary system from Britain, and emergency provisions from Germany.
  • The Constituent Assembly represented diverse regions, communities, and interests, making the Constitution a document of consensus.

5. What are Fundamental Duties? List and explain any five of them.
Answer
  • Fundamental Duties are listed under Article 51A (Part IVA) and were added by the 42nd Amendment in 1976 on the recommendation of the Swaran Singh Committee.
  • There are currently eleven duties. They are non-justiciable but serve as a reminder of citizens' obligations to the nation.
  • Duty 1: Abide by the Constitution and respect the National Flag and National Anthem — every citizen must respect the symbols and laws of the country.
  • Duty 2: Cherish and follow the noble ideals that inspired the national freedom struggle — citizens should uphold values of liberty, equality, and justice.
  • Duty 3: Uphold and protect the sovereignty, unity, and integrity of India — citizens must not engage in activities that threaten national unity.
  • Duty 4: Defend the country and render national service when called upon — citizens should be ready to serve the nation during emergencies.
  • Duty 5: Promote harmony and common brotherhood among all people transcending religious, linguistic, and regional diversities — citizens should work against communalism and casteism.
  • The 86th Amendment (2002) added the 11th duty: providing opportunities for education to children aged 6–14 years.
  • Though not legally enforceable, courts have considered Fundamental Duties while delivering judgments, giving them indirect legal significance.

6. Explain the amendment procedure of the Indian Constitution.
Answer
  • The amendment procedure is given in Article 368, which gives Parliament the power to amend the Constitution.
  • Simple Majority: Some provisions (like creation of new states, citizenship rules) can be amended by a simple majority of Parliament — not treated as amendments under Article 368.
  • Special Majority: Most provisions require a special majority — a majority of the total membership of each House plus two-thirds of members present and voting.
  • Special Majority plus State Ratification: Certain provisions affecting federal structure (like election of President, distribution of powers, representation of states) require ratification by at least half of the state legislatures after being passed by Parliament with a special majority.
  • The Constitution is thus partly flexible (simple majority) and partly rigid (special majority and state ratification).
  • There is no separate body for amending the Constitution — Parliament itself performs this function.
  • As of now, the Constitution has been amended more than 100 times, showing its living and adaptable nature.
  • The Supreme Court held in the Kesavananda Bharati case (1973) that Parliament cannot alter the "Basic Structure" of the Constitution, placing a judicial check on the amendment power.

Common Mistakes to Avoid

MistakeCorrection
Writing that Right to Property is a Fundamental RightIt was removed by the 44th Amendment (1978); it is now only a legal right under Article 300A
Saying Dr. Ambedkar was President of the Constituent AssemblyDr. Rajendra Prasad was the President; Ambedkar chaired the Drafting Committee
Confusing Directive Principles with Fundamental RightsDirective Principles are non-justiciable (Part IV); Fundamental Rights are justiciable (Part III)
Writing that India has dual citizenshipIndia has single citizenship only
Saying the Constitution came into force on 15 August 1947It came into force on 26 January 1950; 15 August 1947 is Independence Day
Stating the Preamble was added by an amendmentThe Preamble was part of the original Constitution; the words "Socialist" and "Secular" were added by the 42nd Amendment
Saying there are 10 Fundamental DutiesThere are 11 Fundamental Duties after the 86th Amendment added the 11th in 2002
Confusing Article 32 with Article 226Article 32 is for the Supreme Court; Article 226 is for High Courts — both deal with constitutional remedies

Exam Checklist

  • [ ] Preamble keywords memorised — Sovereign, Socialist, Secular, Democratic Republic
  • [ ] All six Fundamental Rights and their Article numbers (12–35)
  • [ ] Difference between Fundamental Rights (justiciable) and Directive Principles (non-justiciable)
  • [ ] Fundamental Duties — Article 51A, 42nd Amendment, 11 duties
  • [ ] Constituent Assembly — formation, key members, timeline (2 years 11 months 18 days)
  • [ ] Dr. Ambedkar's role — Chairman of Drafting Committee, "Father of the Constitution"
  • [ ] Dates — 26 November 1949 (adoption), 26 January 1950 (enforcement)
  • [ ] Amendment procedure — Article 368, simple majority vs. special majority
  • [ ] Key amendments — 42nd (Socialist, Secular, Duties), 44th (Right to Property removed), 86th (11th Duty)
  • [ ] Federal with unitary features — examples of both
  • [ ] Single citizenship, independent judiciary, secularism — definitions
  • [ ] Basic Structure doctrine — Kesavananda Bharati case (1973)

Frequently Asked Questions

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