Which one among the following States shares common boundaries with maximum number of other States? .

1. Introduction to India's Political Map & Article 1-4 (basic)

India’s political identity is anchored in Part I of the Constitution, comprising Articles 1 to 4. Article 1 defines the country as "India, that is Bharat," and describes it as a 'Union of States' rather than a 'Federation of States' to emphasize that the Union is indestructible and states have no right to secede Indian Polity, Chapter 6, p.49. A critical distinction for students is between the 'Union of India' (which includes only the States) and the 'Territory of India' (a wider term including States, Union Territories, and any future acquired territories) Indian Polity, Chapter 30, p.409. Currently, India is organized into 28 states and 8 Union Territories.

The power to shape India's map lies entirely with the Parliament. To understand how the map evolves, we look at Articles 2 and 3. While Article 2 deals with the admission or establishment of new states that were not previously part of India, Article 3 deals with the internal reorganization of existing states—such as changing their names, increasing/decreasing their area, or altering their boundaries Indian Polity, Appendix, p.696. This flexibility has led to the creation of several states from larger parents, such as Chhattisgarh from Madhya Pradesh or Telangana from Andhra Pradesh.

From a geographical perspective, knowing the relative positions of these states is essential. Centrally located states often share boundaries with the highest number of neighbors. For instance, while Uttar Pradesh leads the country by bordering 8 states and 1 UT, other pivotal states like Chhattisgarh and Assam are also major hubs, each sharing borders with 7 different states. Mastering these "neighbor counts" is a foundational step in visualizing India’s political landscape.

Article	Primary Scope
Article 1	Name and Territory of the Union.
Article 2	Admission or establishment of new states (external additions).
Article 3	Formation of new states or alteration of existing states (internal changes).
Article 4	Laws under Art. 2 & 3 are not deemed constitutional amendments under Art. 368.

Sources: Indian Polity, Union and Its Territory, p.49; Indian Polity, Union Territories, p.409; Indian Polity, Appendix, p.696

2. Evolution and Reorganization of Indian States (intermediate)

Welcome to our second step! After India gained independence, our internal boundaries weren't drawn based on geography or culture, but rather on how the British had historically annexed territories. This resulted in a confusing four-fold classification (Part A, B, C, and D states). To bring order to this, the government appointed the States Reorganisation Commission (SRC) in 1953, led by Justice Fazl Ali, along with K.M. Panikkar and Hridaynath Kunzru Rajiv Ahir, A Brief History of Modern India, Developments under Nehru’s Leadership (1947-64), p.638. The commission's primary task was to redraw the map of India, balancing linguistic demands with national unity and administrative efficiency.

The landmark States Reorganisation Act of 1956 (and the 7th Constitutional Amendment) fundamentally transformed the Indian map. It abolished the old four-fold classification and established 14 states and 6 union territories M. Laxmikanth, Indian Polity, Union and Its Territory, p.53. For instance, the Telugu-speaking areas of Hyderabad were merged with the existing Andhra State to create Andhra Pradesh, and Kerala was formed by merging the Travancore-Cochin state with the Malabar district of Madras M. Laxmikanth, Indian Polity, Union and Its Territory, p.54. This period marked the height of linguistic reorganization, ensuring that major language groups had their own administrative units.

However, the map of India is not static; it continued to evolve as regional aspirations grew. In the year 2000, a new logic of reorganization emerged—based more on administrative ease and regional development than language. This led to the creation of three new states: Chhattisgarh (carved out of Madhya Pradesh), Uttarakhand (out of Uttar Pradesh), and Jharkhand (out of Bihar) D. D. Basu, Introduction to the Constitution of India, The State Legislature, p.294. The most recent major change occurred in 2014, when Telangana was carved out of Andhra Pradesh, reflecting long-standing regional demands for a separate identity M. Laxmikanth, Indian Polity, Union and Its Territory, p.56.

Sources: A Brief History of Modern India, Developments under Nehru’s Leadership (1947-64), p.638; Indian Polity, Union and Its Territory, p.53-56; Introduction to the Constitution of India, The State Legislature, p.294

3. India's International Land Borders & Frontiers (exam-level)

India occupies a unique position in South Asia, sharing a massive land frontier of approximately 15,106.7 km with seven distinct neighbors. To understand India's political geography, we must view these borders not just as lines on a map, but as historical and topographical realities. For instance, our border with China (approx. 3,488 km) is characterized by the rugged Himalayas, making physical demarcation difficult; it is largely a product of historical policies like the McMahon Line in the eastern sector Geography of India, India–Political Aspects, p.29. In contrast, the Radcliffe Line with Pakistan and Bangladesh was a political partition, traversing diverse terrains from the burning sands of the Thar Desert to the marshy Sunderbans.

Geographically, India's land neighbors are spread across the compass: Pakistan and Afghanistan in the northwest, China, Nepal, and Bhutan in the north, and Myanmar and Bangladesh in the east Contemporary India-I, India Size and Location, p.4. It is crucial for aspirants to identify which states act as 'frontiers'. For example, while West Bengal shares borders with three countries (Nepal, Bhutan, and Bangladesh), landlocked states like Chhattisgarh or Haryana have no international borders or coastlines. Historically, the search for a 'scientific frontier' led the British to establish the Durand Line in 1893 to separate British India from Afghanistan A Brief History of Modern India, Expansion and Consolidation of British Power in India, p.132.

Beyond international boundaries, India faces internal inter-state border disputes. These often arise from linguistic complexities or administrative transitions, such as the dispute between Maharashtra and Karnataka over Belgaum, or between Haryana and Punjab over Chandigarh Indian Constitution at Work, FEDERALISM, p.169. Understanding these layers—from the high-altitude reaches of the LAC to the linguistic overlaps of state borders—is essential for mastering Indian geography.

Neighboring Country	Indian States/UTs Sharing the Border	Key Feature
Bangladesh	West Bengal, Meghalaya, Mizoram, Tripura, Assam	Longest international land border.
China	Ladakh (UT), Himachal, Uttarakhand, Sikkim, Arunachal	Divided into Western, Middle, and Eastern sectors.
Pakistan	Ladakh, J&K (UTs), Punjab, Rajasthan, Gujarat	Contains the Radcliffe Line and the LOC.
Myanmar	Arunachal, Nagaland, Manipur, Mizoram	Shares the mountainous Purvanchal frontier.

Sources: Geography of India, India–Political Aspects, p.29; Contemporary India-I, India Size and Location, p.4; A Brief History of Modern India, Expansion and Consolidation of British Power in India, p.132; Indian Constitution at Work, FEDERALISM, p.169

4. Coastal Geography & Maritime States (basic)

India’s geographical identity is profoundly shaped by its relationship with the sea. As the landmass begins to taper south of 22° North latitude, it extends into the Indian Ocean, effectively dividing it into the Arabian Sea on the west and the Bay of Bengal on the east CONTEMPORARY INDIA-I, Geography, Class IX, India Size and Location, p.2. This creates a massive coastline of 7,516.6 km (including the mainland and the island groups of Andaman & Nicobar and Lakshadweep). Politically, this stretch is shared by nine maritime states: Gujarat, Maharashtra, Goa, Karnataka, and Kerala on the western front, and Tamil Nadu, Andhra Pradesh, Odisha, and West Bengal on the eastern front.

While we often think of coasts as just "beaches," India’s coasts are geologically distinct. The Western Coastal Plain is a prime example of a submerged coastal plain. It is believed that ancient landmasses, such as the legendary city of Dwaraka, were submerged here due to tectonic faulting and subsidence during the Eocene period INDIA PHYSICAL ENVIRONMENT, Geography Class XI, Structure and Physiography, p.14. Because the land sinks sharply into the sea, the western coast is narrow but provides deep, natural conditions for ports and harbors like Kandla, Mumbai (Mazagaon), and Kochi.

In contrast, the Eastern Coastal Plain is an emergent or depositional coast. It is much broader and is characterized by the massive deltas formed by rivers like the Mahanadi, Godavari, Krishna, and Cauvery Geography of India, Majid Husain, Physiography, p.65. Because the sea is shallower here and the land is constantly being extended by river sediments (alluvium), it is less suited for natural deep-water ports but is incredibly fertile for agriculture.

Feature	Western Coast	Eastern Coast
Nature	Submerged / Narrow	Emergent / Broad
Major States	Gujarat to Kerala	West Bengal to Tamil Nadu
Key Features	Natural Harbors, Estuaries	Large Deltas, Fertile Alluvium

Sources: CONTEMPORARY INDIA-I ,Geography, Class IX, India Size and Location, p.2; INDIA PHYSICAL ENVIRONMENT, Geography Class XI, Structure and Physiography, p.14; Geography of India ,Majid Husain, Physiography, p.63-65

5. The Tropic of Cancer & Standard Meridian in India (intermediate)

India’s geographical identity is defined by two crucial imaginary lines: the Tropic of Cancer (23°30' N) and the Standard Meridian (82°30' E). These lines are not just coordinates; they dictate India's climate, sunlight distribution, and time-keeping logic.

The Tropic of Cancer passes through the center of India, effectively dividing the country into two distinct climatic zones. The area lying south of this latitude is the Tropical Zone, characterized by high temperatures and low seasonal variation. The area to the north falls in the Sub-tropical and Temperate Zone, which experiences more extreme seasonal ranges in temperature India Physical Environment, NCERT Class XI, Climate, p.29. This line traverses eight states: Gujarat, Rajasthan, Madhya Pradesh, Chhattisgarh, Jharkhand, West Bengal, Tripura, and Mizoram Contemporary India-I, NCERT Class IX, Climate, p.27.

On the longitudinal front, India spans nearly 30°, leading to a sunrise time difference of about two hours between the easternmost point in Arunachal Pradesh and the westernmost point in Gujarat. To maintain administrative uniformity, India adopted the Standard Meridian of 82°30' E. This specific longitude was chosen because it is a multiple of 7°30', a global convention for time zones India Physical Environment, NCERT Class XI, India — Location, p.2. The Indian Standard Time (IST) is 5 hours and 30 minutes ahead of Greenwich Mean Time (GMT). The Standard Meridian passes through five states: Uttar Pradesh, Madhya Pradesh, Chhattisgarh, Odisha, and Andhra Pradesh.

Feature	Tropic of Cancer (Latitude)	Standard Meridian (Longitude)
Value	23°30' N	82°30' E
Function	Divides India into Tropical & Sub-tropical zones	Determines Indian Standard Time (IST)
States Covered	8 (GJ, RJ, MP, CH, JH, WB, TR, MZ)	5 (UP, MP, CH, OD, AP)

Sources: Contemporary India-I, Geography, Class IX NCERT, Climate, p.27; India Physical Environment, Geography Class XI NCERT, Climate, p.29; India Physical Environment, Geography Class XI NCERT, India — Location, p.2

6. Internal Boundaries: States with Maximum Neighbors (exam-level)

Understanding the internal boundaries of India is like piecing together a complex jigsaw puzzle. Because of India's unique federal structure and the periodic reorganization of states, the number of neighbors a state has can change over time. When we look at the map of India, two states stand out as the primary "hubs" of internal connectivity: Uttar Pradesh and Assam. Uttar Pradesh holds the record for the maximum number of internal boundaries, sharing its borders with eight states (Uttarakhand, Himachal Pradesh, Haryana, Rajasthan, Madhya Pradesh, Chhattisgarh, Jharkhand, and Bihar) and one Union Territory (Delhi), as noted in the context of state legislatures and administrative boundaries Indian Polity, M. Laxmikanth (7th ed.), State Legislature, p. 350.

Close behind is Assam, which serves as the gateway to the North-East. It shares boundaries with all the other "Seven Sister" states (Arunachal Pradesh, Nagaland, Manipur, Mizoram, Tripura, and Meghalaya) plus West Bengal, totaling seven states. The creation of new states has historically redrawn these boundary counts. For instance, the year 2000 was a milestone when Chhattisgarh, Uttarakhand, and Jharkhand were carved out of Madhya Pradesh, Uttar Pradesh, and Bihar respectively Indian Polity, M. Laxmikanth (7th ed.), Union and Its Territory, p. 56. This reorganization turned Chhattisgarh into a central landlocked powerhouse that touches seven different states, making it a critical junction in Central India.

Geographical shifts continued as recently as 2014 with the birth of Telangana from Andhra Pradesh Introduction to the Constitution of India, D. D. Basu (26th ed.), Territory of the Union, p. 80. Such changes are not just trivia; they impact inter-state coordination on issues like river water sharing, police jurisdiction, and regional trade. For example, while West Bengal borders five states, it also manages critical international borders, highlighting the dual responsibility of internal and external boundary management common in the North-East Politics in India since Independence, NCERT Class XII, Regional Aspirations, p. 126.

State	Number of Neighboring States	Key Region
Uttar Pradesh	8 (+1 UT)	Northern/Central India
Assam	7	North-East (Gateway)
Chhattisgarh	7	Central India (Landlocked)
Madhya Pradesh	5	Central India

Sources: Indian Polity, M. Laxmikanth (7th ed.), State Legislature, p.350; Indian Polity, M. Laxmikanth (7th ed.), Union and Its Territory, p.56; Introduction to the Constitution of India, D. D. Basu (26th ed.), Territory of the Union, p.80; Politics in India since Independence, NCERT Class XII, Regional Aspirations, p.126

7. Solving the Original PYQ (exam-level)

This question effectively bridges your theoretical knowledge of the reorganization of states with spatial literacy. While you have studied the chronological evolution of India’s map in Indian Polity, M. Laxmikanth, this PYQ requires you to visualize the geographical consequences of those administrative changes. To arrive at the answer, you must apply the concept of landlocked centrality—understanding how states created in 2000 and 2014, like Chhattisgarh and Telangana, reshaped the internal boundaries of the Indian heartland.

When reasoning through the options, perform a mental clockwise scan. Chhattisgarh stands out because it acts as a corridor between Northern, Eastern, and Central India, bordering seven states: Uttar Pradesh, Jharkhand, Odisha, Telangana, Maharashtra, Madhya Pradesh, and Andhra Pradesh. In comparison, Madhya Pradesh and West Bengal each border only five states. It is crucial to note that Andhra Pradesh also borders only five states now; a common mistake is using outdated pre-2014 maps, but post-bifurcation, its reach is significantly reduced. Therefore, among the provided choices, Chhattisgarh is the correct answer.

UPSC often uses distractor traps to test the precision of your map work. A primary trap here is West Bengal; students frequently confuse its three international borders (Nepal, Bhutan, and Bangladesh) with state boundaries, but the question strictly asks for other States. Another trap is the "Absolute Leader" bias—while Uttar Pradesh (8 states) and Assam (7 states) are the overall leaders in India, neither is listed here. You must avoid looking for the national maximum and focus strictly on a relative comparison of the four given options to identify the highest count.