The States of the Indian Union can be re- organised or their boundaries altered by

1. Article 1: The Union and its Territory (basic)

Welcome to your first step in understanding how India is structured! Article 1 of the Constitution is the starting point of our political identity. It declares: "India, that is Bharat, shall be a Union of States." This simple sentence establishes two critical things: the name of our country and the nature of our administrative system.

A common question arises: Why did the makers of our Constitution choose the phrase 'Union of States' instead of 'Federation of States'? Dr. B.R. Ambedkar clarified that this choice was deliberate to highlight two fundamental principles. First, the Indian federation is not the result of a voluntary agreement among sovereign states, unlike the American federation. Second, the states have no right to secede (break away) from the federation. This is why India is often described as an "indestructible union of destructible states" M. Laxmikanth, Union and Its Territory, p.49. While the borders of states can change, the Union itself remains permanent.

It is also vital to distinguish between two terms that sound similar but have different legal scopes: the 'Union of India' and the 'Territory of India'. The latter is a much wider expression.

Expression	What it Includes
Union of India	Only the 28 States (as they are members of the federal system and share powers with the Centre).
Territory of India	The States + Union Territories + Any territories that may be acquired by the Government of India in the future.

The names of all states and union territories, along with their territorial extent, are listed in the First Schedule of the Constitution M. Laxmikanth, Union and Its Territory, p.49. Because India is a sovereign state, it also has the power to acquire foreign territories through international law (like purchase, treaty, or conquest), even though the Constitution doesn't have a separate administrative code for them yet — they are generally managed similarly to Union Territories D. D. Basu, Administration of Union Territories and Acquired Territories, p.311.

Sources: M. Laxmikanth, Indian Polity (7th ed.), Union and Its Territory, p.49; M. Laxmikanth, Indian Polity (7th ed.), Federal System, p.138; D. D. Basu, Introduction to the Constitution of India (26th ed.), Administration of Union Territories and Acquired Territories, p.311

2. Indestructible Union of Destructible States (intermediate)

When we describe the Indian federation, we use a very specific phrase: "An Indestructible Union of Destructible States." This highlights a fundamental difference between Indian federalism and the "classic" federalism seen in countries like the USA. To understand this, we must look at how much power the central government has over the very existence and shape of the states themselves.

Under Article 3 of the Indian Constitution, the Union Parliament has the absolute power to redraw the political map of India. It can form a new state by separating territory from an existing state, merge two states, or change the name and boundaries of any state. While the President must refer such a proposal to the concerned State Legislature for its views, there is a catch: Parliament is not bound by those views. Even if a state legislature unanimously opposes being divided, the Parliament can proceed with the reorganization using a simple majority. This is why the states are called "destructible"—their territorial integrity is not guaranteed by the Constitution M. Laxmikanth, Federal System, p.140.

In contrast, the United States is described as an "Indestructible Union of Indestructible States." There, the national government cannot change the territory of a state without the consent of that state's legislature. This is because the US federation was formed by a compact or agreement between independent states who wanted to protect their identity D. D. Basu, Introduction to the Constitution of India, TERRITORY OF THE UNION, p.77. India's states, however, were created for administrative convenience or linguistic logic by the Union, meaning the Union remains permanent while the internal boundaries remain fluid.

Feature	Indian Federation	American Federation
Nature of Union	Indestructible (States cannot secede)	Indestructible (States cannot secede)
Nature of States	Destructible (Parliament can change boundaries)	Indestructible (State consent is mandatory)
Amendment Requirement	Simple Majority (Art. 4)	Rigid constitutional process

Finally, Article 4 clarifies that any law made for reorganizing states under Article 3 is not considered an amendment of the Constitution under Article 368. This ensures that the process is flexible and doesn't require the complex "special majority" usually needed for constitutional changes. It reinforces the idea that the Union is the supreme architect of the nation's internal geography M. Laxmikanth, Union and Its Territory, p.52.

Sources: M. Laxmikanth, Indian Polity, Federal System, p.140; D. D. Basu, Introduction to the Constitution of India, TERRITORY OF THE UNION, p.77; M. Laxmikanth, Indian Polity, Union and Its Territory, p.52

3. Article 368: Methods of Constitutional Amendment (intermediate)

In the Indian democratic setup, the Constitution is meant to be a 'living document'—stable enough to provide a foundation, yet flexible enough to evolve. Article 368 is the primary gateway for this evolution, vesting the Parliament with the power to amend the Constitution by way of addition, variation, or repeal M. Laxmikanth, Indian Polity, Parliament, p.258. While Article 368 formally mentions two types of amendments, when we look at the Constitution as a whole, there are actually three distinct methods through which the text can be modified.

The first method is the Simple Majority, where a law is passed like any ordinary piece of legislation—by a majority of members present and voting M. Laxmikanth, Indian Polity, Parliament, p.237. Interestingly, many significant changes, such as the creation or reorganization of states, fall into this category. The second method is the Special Majority, required for the 'core' of the Constitution (like Fundamental Rights). This requires a majority of the total membership of each House AND a two-thirds majority of those present and voting. The third and most rigorous method involves a Special Majority plus Ratification by at least half of the State Legislatures, reserved for amendments that affect the federal structure of the country, such as the powers of the Supreme Court or the election of the President M. Laxmikanth, Indian Polity, Amendment of the Constitution, p.124.

Crucially for our journey into state reorganization, we must distinguish between an informal amendment and a formal amendment under Article 368. Even though changing a state's boundary modifies the First Schedule of the Constitution, Article 4(2) explicitly declares that laws made for state reorganization are not to be considered amendments under Article 368. This is a deliberate design choice by our founding fathers to ensure that the Union Parliament has the flexibility to redraw the internal map of India without the high hurdle of a special majority.

Method	Requirement	Key Examples
Simple Majority	Majority of members present and voting	Creation of new states, Citizenship, Quorum in Parliament
Special Majority	50% of Total Membership + 2/3rd of Present & Voting	Fundamental Rights, Directive Principles
Special Majority + Ratification	Special Majority + Consent of 1/2 of States	GST Council, Election of President, Seventh Schedule

Sources: Indian Polity, Amendment of the Constitution, p.124; Indian Polity, Parliament, p.258; Indian Polity, Parliament, p.237

4. Evolution of States: Historical Commissions (basic)

When India gained independence in 1947, the internal boundaries of the country were a messy legacy of British conquest and princely states' accessions. There was an immediate and passionate demand, especially from South India, to reorganize states on a linguistic basis. This wasn't a new idea; even the Nehru Report (1928), the first major Indian effort to draft a constitutional scheme, had recommended the formation of provinces based on language Rajiv Ahir, Spectrum: A Brief History of Modern India, Simon Commission and the Nehru Report, p.365.

To address these demands, the Government of India appointed a series of committees. Initially, there was great hesitation because the leadership feared that language-based states might lead to further division of the country so soon after the Partition. The first two major bodies, the Dhar Commission (1948) and the JVP Committee (1948) (comprising Jawaharlal Nehru, Vallabhbhai Patel, and Pattabhi Sitaramayya), both rejected language as the primary basis, favoring administrative convenience instead History (Tamilnadu State Board), Reconstruction of Post-colonial India, p.112.

The turning point came in 1953 with the creation of Andhra State following the death of activist Potti Sriramulu. This forced the government to appoint a formal States Reorganisation Commission (SRC) in December 1953, chaired by Fazl Ali, with K.M. Panikkar and H.N. Kunzru as members M. Laxmikanth, Indian Polity, Union and Its Territory, p.53. This commission's report was a landmark—it broadly accepted language as a basis for reorganization but famously rejected the theory of 'one language, one state.'

The Fazl Ali Commission suggested that four major factors must be considered during any reorganization: (1) Preservation of national unity and security, (2) Linguistic and cultural homogeneity, (3) Financial and administrative viability, and (4) The welfare of the people and the nation as a whole M. Laxmikanth, Indian Polity, Union and Its Territory, p.53.

Sources: Spectrum: A Brief History of Modern India (Rajiv Ahir), Simon Commission and the Nehru Report, p.365; History Class XII (Tamilnadu State Board), Reconstruction of Post-colonial India, p.112; Indian Polity (M. Laxmikanth), Union and Its Territory, p.53

5. Article 3: The Process of Internal Reorganisation (exam-level)

While Article 2 deals with bringing new territories into the Union, Article 3 is what we call the "Map-maker’s Article." It governs the internal reorganisation of existing states and Union Territories. Under this Article, the Union Parliament has the supreme power to: (a) form a new state by separating territory from any state or uniting two or more states; (b) increase or diminish the area of any state; and (c) alter the boundaries or the name of any state Introduction to the Constitution of India, D. D. Basu, TERRITORY OF THE UNION, p.77.

The procedure for this reorganisation involves a unique "check and balance" that leans heavily toward Union supremacy. A Bill for this purpose can be introduced in either House of Parliament, but only on the prior recommendation of the President. Before making this recommendation, the President must refer the Bill to the State Legislature concerned to express its views within a specific timeframe. However, the Parliament is not bound by these views; it can accept or reject them and proceed with the Bill even if the state legislature opposes it Indian Polity, M. Laxmikanth, Union and Its Territory, p.50.

Crucially, Article 4 of the Constitution clarifies that any law made under Article 3 is not to be considered an amendment to the Constitution under Article 368. This means the Parliament does not need a special majority or the ratification of half the states; a simple majority (like any ordinary law) is sufficient Indian Polity, M. Laxmikanth, Amendment of the Constitution, p.124. This legal flexibility is why political scientists describe India as an "indestructible union of destructible states," meaning that while the Union itself cannot be dissolved, the identity and boundaries of the states within it can be changed at the Union's will Indian Polity, M. Laxmikanth, Union and Its Territory, p.50.

Sources: Introduction to the Constitution of India, D. D. Basu, TERRITORY OF THE UNION, p.77; Indian Polity, M. Laxmikanth, Union and Its Territory, p.50; Indian Polity, M. Laxmikanth, Amendment of the Constitution, p.124

6. Article 4: Why State Reorganisation is Not an 'Amendment' (exam-level)

To understand why state reorganisation is treated differently from other constitutional changes, we must look at the specific 'escape hatch' provided in Article 4 of the Constitution. Generally, any change to the text of the Constitution requires a Special Majority under Article 368 (a majority of the total membership and two-thirds of those present and voting), as noted in M. Laxmikanth, Indian Polity, Parliament, p.240. However, Article 4(2) explicitly declares that laws made for the admission or establishment of new states (under Article 2) and the formation of new states or alteration of boundaries (under Article 3) are not to be considered amendments to the Constitution for the purposes of Article 368. This distinction is crucial for the flexibility of the Indian federation. Because these laws are not formal 'amendments,' the Union Parliament can pass them through the ordinary legislative process. This means a Simple Majority—a majority of the members of each House present and voting—is sufficient to redraw the entire map of India, as seen in the examples of ordinary bills in M. Laxmikanth, Indian Polity, Parliament, p.239. This legal design ensures that the Union government can respond to linguistic or administrative demands without being hindered by the rigid requirements of Article 368, such as the lack of a joint sitting provision or the need for a special majority D. D. Basu, Introduction to the Constitution of India, The Union Legislature, p.263. While a law under Article 3 does technically change the First Schedule (which lists the states) and the Fourth Schedule (which allocates Rajya Sabha seats), Article 4 provides the legal authority for these changes to happen automatically as 'consequential' to the main law. This unique feature is why India is often described as an "indestructible Union of destructible states." Unlike the United States, where the consent of a state is mandatory for its territory to be altered, the Indian Parliament has the ultimate word, making the process of internal reorganisation remarkably smooth and legally straightforward.

Feature	State Reorganisation (Art. 3 & 4)	Constitutional Amendment (Art. 368)
Majority Required	Simple Majority (Present and Voting)	Special Majority (Total Membership + 2/3rd Present and Voting)
Joint Sitting	Available (as it is an ordinary law)	Not Available
Presidential Assent	Required (Prior recommendation also needed)	Obligatory (after the 24th Amendment)

Sources: Indian Polity, M. Laxmikanth, Parliament, p.239-240; Introduction to the Constitution of India, D. D. Basu, The Union Legislature, p.263; Introduction to the Constitution of India, D. D. Basu, Procedure for Amendment, p.194

7. Solving the Original PYQ (exam-level)

This question brings together everything you have learned about the Indestructible Union of Destructible States. While Article 3 of The Constitution of India gives the Union the power to redraw the political map, the process is uniquely unitary in its execution. You must remember the critical building block: although the President refers the reorganization Bill to the concerned State Legislature, their views are purely advisory and not binding. This confirms that the ultimate authority rests solely with the center, bypasssing the need for state "consent" that you might see in other federations.

The logical path to the correct answer, (B) the Union Parliament by a simple majority in the ordinary process of legislation, is found in Article 4. This article explicitly states that laws made for state reorganization are not to be treated as formal Constitutional Amendments under Article 368. Since they are excluded from the rigors of Article 368, Parliament does not require a special majority; it can pass such laws just like any other ordinary legislation. This is a classic UPSC test of whether you can connect the procedural power of Article 3 with the technical exemption provided by Article 4.

To avoid the traps in the other options, keep an eye out for "federal decoys." Option (A) is wrong because it suggests an executive order, whereas state boundaries require a legislative Act. Options (C) and (D) are common traps designed to make you think a two-thirds majority or State Legislature consent is necessary. In our system, the Parliament’s supremacy in internal reorganization is absolute, requiring only a simple majority, which makes India federal in form but unitary in spirit during this specific process.