Which one of the following Constitutional Amendments states that the total number of Ministers, including the Prime Minister, in the Council of Ministers shall not exceed fifteen percent of the total number of

1. Constitutional Mandate: Articles 74 and 75 (basic)

Welcome to our journey into the heart of the Indian Executive! To understand how India is governed, we must first look at the Constitutional Mandate provided by Articles 74 and 75. These two articles act as the foundation of our parliamentary system, establishing the relationship between the President (the nominal head) and the Council of Ministers (the real executive).

Article 74 focuses on the concept of "Aid and Advise." It mandates that there shall be a Council of Ministers with the Prime Minister at the head to advise the President. Following the 42nd and 44th Constitutional Amendment Acts, this advice is generally binding on the President, though they may return it once for reconsideration M. Laxmikanth, Central Council of Ministers, p.213. A unique feature of this relationship is its confidentiality: the nature of the advice given by ministers cannot be questioned in any court of law, ensuring an intimate and trusted bond between the executive branches M. Laxmikanth, Central Council of Ministers, p.214.

Article 75 dives into the "nuts and bolts" of ministerial appointments and responsibilities. While the President appoints the Prime Minister, all other ministers are appointed only on the advice of the Prime Minister. This gives the PM absolute power in choosing their team. However, this power is not infinite in terms of size. To prevent the creation of unnecessarily large "jumbo cabinets" for political favors, the 91st Amendment Act of 2003 introduced a ceiling: the total number of ministers, including the PM, cannot exceed 15% of the total strength of the Lok Sabha M. Laxmikanth, Central Council of Ministers, p.213.

Finally, there is the rule of entry and accountability. A person can be appointed as a minister even if they aren't a member of Parliament, but they must secure a seat in either the Lok Sabha or Rajya Sabha within six consecutive months, or they lose their ministerial position D. D. Basu, Introduction to the Constitution of India, The Union Executive, p.227. Above all, Article 75(3) enshrines the bedrock of our democracy: Collective Responsibility, meaning the Council of Ministers stays in power only as long as it enjoys the confidence of the Lok Sabha.

Sources: Indian Polity, M. Laxmikanth(7th ed.), Central Council of Ministers, p.213-214; Introduction to the Constitution of India, D. D. Basu (26th ed.), The Union Executive, p.227

2. Structure: Cabinet vs. Council of Ministers (basic)

When we talk about the executive branch of the Indian government, the terms Council of Ministers and Cabinet are often used as if they are the same thing. However, in constitutional and functional terms, they represent two very different layers of power. Think of the Council of Ministers as the entire team, while the Cabinet is the core leadership group or the inner circle that actually calls the shots. The Council of Ministers is a larger body, usually consisting of 60 to 80 ministers, whereas the Cabinet is a small, compact body of about 15 to 20 senior ministers who head the most crucial departments like Home, Defence, and Finance M. Laxmikanth, Central Council of Ministers, p.216.

To understand the hierarchy, we must look at the three categories of ministers that make up the Council of Ministers. At the top are the Cabinet Ministers, who attend every meeting and decide the nation's policy. Below them are the Ministers of State, who may either hold independent charge of smaller departments or assist Cabinet ministers. At the third tier are Deputy Ministers, who do not hold independent charge but assist senior ministers in their administrative and parliamentary duties M. Laxmikanth, Central Council of Ministers, p.216. Interestingly, while the Council of Ministers is mentioned in the original text of the Constitution (Articles 74 and 75), the word 'Cabinet' was only inserted later through the 44th Amendment Act of 1978 in Article 352 M. Laxmikanth, Central Council of Ministers, p.218.

While the Cabinet is technically a part of the Council of Ministers, it is the Cabinet that exercises the powers of the Council in practice. As the famous constitutional expert D.D. Basu notes, the Cabinet is the steering wheel of the ship of the state, ensuring that the government remains accountable to the Parliament D. D. Basu, Introduction to the Constitution of India, The Union Legislature, p.241.

Sources: M. Laxmikanth, Indian Polity (7th ed.), Central Council of Ministers, p.216, 218; D. D. Basu, Introduction to the Constitution of India (26th ed.), The Union Legislature, p.241

3. The Principle of Collective Responsibility (intermediate)

At the heart of the parliamentary form of government lies the Principle of Collective Responsibility. As enshrined in Article 75 of our Constitution, the Council of Ministers is collectively responsible to the Lok Sabha (the House of the People). In simple terms, this means the ministers function as a single unit, and the Lok Sabha holds the entire team accountable for the actions, policies, and failures of any single member or department. They are often described by the phrase: "They swim or sink together." M. Laxmikanth, Central Council of Ministers, p.215.

This principle has two major practical implications. First, it relates to the tenure of the government. The Council of Ministers stays in power only as long as it commands the confidence of the majority in the Lok Sabha. If the House passes a No-Confidence Motion, the entire ministry—including those ministers who are members of the Rajya Sabha—must resign. This ensures that the executive remains a servant of the people's elected representatives. M. Laxmikanth, Parliament, p.242.

The second implication is Cabinet Solidarity. Once the Cabinet makes a decision, it becomes the joint decision of all ministers. Even if a minister disagreed during a private meeting, they are duty-bound to defend that decision in Parliament and in public. If a minister feels they cannot support a government policy or decision, the constitutional convention requires them to resign from the Council. A famous historical example is when Dr. B.R. Ambedkar resigned due to differences over the Hindu Code Bill. M. Laxmikanth, Central Council of Ministers, p.215.

Sources: M. Laxmikanth, Indian Polity, Central Council of Ministers, p.215-216; M. Laxmikanth, Indian Polity, Parliament, p.242; D. D. Basu, Introduction to the Constitution of India, The Union Executive, p.228

4. Anti-Defection Law and the 10th Schedule (intermediate)

The Anti-Defection Law was born out of a period in Indian politics famously characterized by the phrase "Aaya Ram, Gaya Ram," where frequent floor-crossing by legislators led to extreme political instability. To curb this, the 52nd Constitutional Amendment Act of 1985 introduced the Tenth Schedule, which provides for the disqualification of members of Parliament and State Legislatures on the grounds of defection M. Laxmikanth, Indian Polity, Anti-Defection Law, p. 597.

Under this law, a legislator faces disqualification in four main scenarios: if they voluntarily give up their party membership; if they vote (or abstain) against party directions without prior permission; if an independent member joins a political party after election; or if a nominated member joins a party after six months of taking their seat. However, the law provides two critical exceptions: a member is not disqualified if they leave their party due to a merger (requiring two-thirds of the party members to agree) or if they are elected as the Presiding Officer (Speaker/Chairman) and voluntarily resign from their party to maintain neutrality M. Laxmikanth, Indian Polity, Anti-Defection Law, p. 597.

As we study the Union Council of Ministers, the 91st Amendment Act of 2003 is particularly vital. Before this amendment, defectors often sought ministerial positions as a "reward" for switching sides. The 91st Amendment significantly strengthened the law by:

• Removing the exception for a "split" (previously, if one-third of a party broke away, they were protected; now, only two-thirds mergers are valid).
• Inserting Article 75(1A), which limits the size of the Council of Ministers to 15% of the total strength of the Lok Sabha. This prevents the creation of "jumbo ministries" used as political inducements M. Laxmikanth, Indian Polity, Central Council of Ministers, p. 213.

Finally, the power to decide on disqualification rests with the Presiding Officer of the House. Initially, this decision was considered final; however, in the landmark Kihoto Hollohan case (1992), the Supreme Court ruled that the Speaker/Chairman acts as a tribunal, and their decision is subject to judicial review on grounds of mala fides or perversity M. Laxmikanth, Indian Polity, State Legislature, p. 338.

Sources: Indian Polity, M. Laxmikanth, Anti-Defection Law, p.597; Indian Polity, M. Laxmikanth, Central Council of Ministers, p.213; Indian Polity, M. Laxmikanth, State Legislature, p.338

5. State Council of Ministers: Articles 163 and 164 (intermediate)

In our journey through the executive branch, we now move from the Centre to the States. The Indian Constitution establishes a parliamentary system at the state level that closely mirrors the Union pattern. The State Council of Ministers (CoM), headed by the Chief Minister, serves as the real executive authority, while the Governor acts as the nominal head Indian Polity, M. Laxmikanth (7th ed.), State Council of Ministers, p.329. This relationship is primarily governed by two pivotal articles: 163 and 164.

Article 163 establishes the "Aid and Advice" principle. It mandates a Council of Ministers to advise the Governor in the exercise of their functions. However, there is a critical distinction here compared to the President: the Governor can act in their discretion. If a question arises whether a matter falls within the Governor's discretion, the Governor’s decision is final, and the validity of their actions cannot be questioned Indian Polity, M. Laxmikanth (7th ed.), State Council of Ministers, p.330. Outside of these discretionary areas, the Supreme Court confirmed in 1974 (State of Punjab) that the Governor must follow the CoM's advice.

Article 164 deals with the "nuts and bolts" of the ministry. Key provisions include:

• Appointment: The Chief Minister is appointed by the Governor, and other ministers are appointed by the Governor only on the advice of the CM.
• Tribal Welfare Minister: In the states of Chhattisgarh, Jharkhand, Madhya Pradesh, and Odisha, there must be a minister in charge of tribal welfare. (Note: Bihar was removed from this list by the 94th Amendment Act, 2006) Indian Polity, M. Laxmikanth (7th ed.), State Council of Ministers, p.329.
• Responsibility: Ministers hold office during the pleasure of the Governor (individual responsibility), but the Council is collectively responsible to the Legislative Assembly of the State.
• Size Limit: Following the 91st Amendment, the total number of ministers, including the CM, cannot exceed 15% of the total strength of the Legislative Assembly, and must not be less than 12.

Sources: Indian Polity, M. Laxmikanth(7th ed.), State Council of Ministers, p.329-330

6. The 91st Amendment Act, 2003: Objectives and Clauses (exam-level)

In the decades leading up to 2003, Indian politics was often characterized by the era of coalitions. During this time, Prime Ministers and Chief Ministers frequently faced intense pressure to appease various political factions to maintain their majority. This resulted in the creation of ‘jumbo ministries’—unusually large councils of ministers formed primarily as political inducements rather than for administrative efficiency. To curb this practice and bring fiscal discipline to the executive, the Parliament enacted the 91st Amendment Act, 2003.

The most significant change brought by this amendment was the insertion of Clause (1A) into Article 75 of the Constitution. It explicitly mandates that the total number of ministers, including the Prime Minister, in the Central Council of Ministers shall not exceed 15% of the total strength of the Lok Sabha (House of the People). Before this, the size of the ministry was governed purely by the "exigencies of time" and the requirements of the situation, leaving it open to political exploitation Indian Constitution at Work, NCERT Class XI (2025 ed.), Chapter 4: EXECUTIVE, p. 91.

This principle of a numerical ceiling was also extended to the states through Article 164(1A). In the states, the total number of ministers, including the Chief Minister, cannot exceed 15% of the total strength of the Legislative Assembly. However, the amendment recognizes that smaller states might need a minimum number of ministers to function effectively, thus it provides that the number of ministers in a state shall not be less than 12 Indian Polity, M. Laxmikanth (7th ed.), Chapter 32: State Council of Ministers, p. 332.

Beyond just the size, the 91st Amendment also addressed the integrity of the council. It stipulated that a member of either House of Parliament (or State Legislature) who is disqualified on the ground of defection shall also be disqualified to be appointed as a minister. This ensures that the promise of a ministerial berth cannot be used as an illegal incentive to trigger defections Indian Polity, M. Laxmikanth (7th ed.), Chapter 21: Central Council of Ministers, p. 213.

Sources: Indian Constitution at Work, NCERT Class XI (2025 ed.), Chapter 4: EXECUTIVE, p.91; Indian Polity, M. Laxmikanth (7th ed.), Chapter 21: Central Council of Ministers, p.213; Indian Polity, M. Laxmikanth (7th ed.), Chapter 32: State Council of Ministers, p.332

7. Solving the Original PYQ (exam-level)

Throughout your study of the Executive and Article 75, you encountered the principle of collective responsibility. However, a major challenge in Indian parliamentary history was the creation of 'jumbo ministries' to pacify political allies during the coalition era. This specific question tests your ability to identify the legal remedy used to curb this political opportunism. By adding Clause (1A) to Article 75, the constitution moved from a system of political discretion to a fixed numerical ceiling, ensuring that the size of the Council of Ministers remains manageable and accountable to the House of the People (Lok Sabha).

To arrive at the correct answer, remember that the 91st Constitutional Amendment Act (2003) was a landmark reform that simultaneously strengthened the Anti-Defection Law and limited the size of the ministry to 15% of the total strength of the Lok Sabha. A common trap is forgetting that this percentage includes the Prime Minister himself. Since the goal was to stabilize the government, the amendment ensures that ministerial berths cannot be used as 'bait' for potential defectors. This makes (B) 91st the only logical choice for a student who connects administrative efficiency with constitutional law as explained in Indian Polity by M. Laxmikanth and Indian Constitution at Work (NCERT).

UPSC often clusters amendments passed around the same timeframe to test your precision. While the 90th Amendment dealt with representation in the Assam Legislative Assembly and the 92nd Amendment added four languages (Bodo, Dogri, Maithili, and Santhali) to the Eighth Schedule, they are unrelated to the executive's structure. Similarly, the 93rd Amendment focuses on reservations in educational institutions. By recognizing that the 91st is uniquely tied to ministerial strength and defection, you can confidently eliminate these distractors and secure your marks.