Which among the following states of India have common borders with Pakistan ?

1. India’s Territorial Extent and Land Frontiers (basic)

To understand India's place in the world, we must first look at its mathematical location and physical scale. India lies entirely in the Northern Hemisphere and the Eastern Hemisphere. Its mainland stretches from the warm tropical latitudes of 8° 4' N (Kanyakumari) to the frigid heights of 37° 6' N in the north. Longitudinally, it spans from 68° 7' E in the west (Gujarat) to 97° 25' E in the east (Arunachal Pradesh). Interestingly, despite the degree difference being roughly 30° for both latitude and longitude, India is actually longer from North to South (3,214 km) than it is wide from East to West (2,933 km) Geography of India, Majid Husain, Ch 1, p.28.

India’s land frontier is a massive 15,200 km journey that touches seven different nations. To the northwest, we share borders with Pakistan and Afghanistan. Moving along the northern arc, we encounter China, Nepal, and Bhutan, while to the east lie Myanmar and Bangladesh CONTEMPORARY INDIA-I, NCERT Class IX, Ch 1, p.4. Each of these borders has its own unique geography; for instance, the border with Pakistan traverses the marshy Rann of Kutch, the scorching Thar Desert, and the fertile plains of Punjab before climbing into the rugged Himalayas Geography of India, Majid Husain, Ch 16, p.35.

When mapping these frontiers to our internal administration, it is crucial to distinguish between States and Union Territories (UTs). For example, while Punjab, Rajasthan, and Gujarat are the states bordering Pakistan, the frontier also extends through the Union Territories of Jammu & Kashmir and Ladakh. It is a common misconception that Himachal Pradesh or Haryana touch Pakistan; however, Himachal Pradesh exclusively shares its international boundary with China, and Haryana is entirely landlocked Geography of India, Majid Husain, Ch 16, p.29.

Feature	Measurement/Detail
Total Land Frontier	Approx. 15,200 km
Longest Border	Bangladesh INDIA PHYSICAL ENVIRONMENT, NCERT Class XI, p.6
North-South Extent	3,214 km
East-West Extent	2,933 km

Sources: Geography of India (Majid Husain), India–Political Aspects, p.28, 29, 35; CONTEMPORARY INDIA-I (NCERT Class IX), India Size and Location, p.4; INDIA PHYSICAL ENVIRONMENT (NCERT Class XI), India — Location, p.6

2. Important Boundary Lines: Radcliffe, McMahon, and Durand (intermediate)

In political geography, a boundary is not just a line on a map; it is a legal and historical marker of a nation’s sovereignty. India’s borders are a complex legacy of the British colonial era, primarily defined by three major lines: the Radcliffe Line, the McMahon Line, and the Durand Line. Each was drawn under different historical pressures, ranging from the search for a 'scientific frontier' to the chaotic necessity of partition.

The Radcliffe Line was established in 1947 by Sir Cyril Radcliffe to demarcate the borders of India and Pakistan (which then included East Pakistan, now Bangladesh). It is perhaps the most demographically significant boundary in modern history, as it instantly turned millions into minorities in their own homes History, class XII (Tamilnadu state board 2024 ed.), Reconstruction of Post-colonial India, p.102. Geographically, this border is incredibly diverse, starting from the marshy Rann of Kutch in Gujarat, cutting through the Thar Desert of Rajasthan, traversing the fertile Punjab plains, and rising into the rugged mountains of Jammu & Kashmir and Ladakh Geography of India, Majid Husain, Chapter 16, p.35.

The McMahon Line serves as the effective boundary between India and China in the eastern sector (Arunachal Pradesh). It was the result of the 1914 Simla Convention, negotiated by Sir Henry McMahon. While India recognizes this as the legal international boundary, China has historically contested its validity, leading to ongoing territorial disputes. Moving further west, the Durand Line was established much earlier, in 1893, to separate British India from Afghanistan. Negotiated by Sir Mortimer Durand and the Afghan Amir Abdur Rahman, it was intended to create a buffer zone for the British Empire A Brief History of Modern India, Rajiv Ahir, Expansion and Consolidation of British Power in India, p.132. Today, it forms the border between Pakistan and Afghanistan, though a small 106 km stretch in Ladakh remains India’s official boundary with Afghanistan.

Boundary Line	Primary Countries Involved	Key Region / Context
Radcliffe Line	India & Pakistan / Bangladesh	1947 Partition; Punjab, Bengal, Rajasthan, Gujarat.
McMahon Line	India & China	Eastern Sector; Arunachal Pradesh (formerly NEFA).
Durand Line	India/Pakistan & Afghanistan	Shortest Indian border (106 km) in Ladakh.

Sources: History, class XII (Tamilnadu state board 2024 ed.), Reconstruction of Post-colonial India, p.102; Geography of India, Majid Husain, India–Political Aspects, p.35; A Brief History of Modern India, Rajiv Ahir, Expansion and Consolidation of British Power in India, p.132

3. Mapping India’s Neighbors and Associated States (intermediate)

To master India’s political geography, we must first look at the vast land frontier that defines our subcontinent. India shares land boundaries with seven countries: Pakistan and Afghanistan in the northwest; China (Tibet), Nepal, and Bhutan in the north; and Myanmar and Bangladesh in the east NCERT Class IX Geography, India Size and Location, p.4. These borders are not just lines on a map; they vary from the marshy Rann of Kutch to the high-altitude deserts of Ladakh and the dense tropical forests of the northeast. Understanding which states touch these international lines is essential for both administrative and security perspectives. Our western border with Pakistan spans approximately 3,323 km and was established by the Radcliffe Award in 1947. This border runs through Gujarat, Rajasthan, Punjab, and the Union Territories of Jammu & Kashmir and Ladakh. Moving north, the border with China (about 3,917 km) is characterized by rugged, folded mountains and a harsh climate, making ground demarcation historically difficult Geography of India, Majid Husain, India–Political Aspects, p.29. This frontier is shared by the Union Territory of Ladakh and the states of Himachal Pradesh, Uttarakhand, Sikkim, and Arunachal Pradesh. On the eastern flank, the 1,458 km boundary with Myanmar is unique because it follows a natural watershed between the Brahmaputra and the Ayeyarwady (Irrawaddy) rivers Geography of India, Majid Husain, India–Political Aspects, p.48. It traverses through the thickly forested hills of four Indian states: Arunachal Pradesh, Nagaland, Manipur, and Mizoram. It is important to note that some states, like Haryana, Madhya Pradesh, and Chhattisgarh, are entirely landlocked and share no international boundaries NCERT Class IX Geography, India Size and Location, p.4.

Neighboring Country	Associated States / Union Territories	Key Feature
Pakistan	Gujarat, Rajasthan, Punjab, J&K (UT), Ladakh (UT)	Radcliffe Line; diverse terrain (Desert to Alpine)
China	Ladakh (UT), Himachal Pradesh, Uttarakhand, Sikkim, Arunachal Pradesh	Himalayan watershed; high-altitude terrain
Myanmar	Arunachal Pradesh, Nagaland, Manipur, Mizoram	Forested hills; watershed boundary

Sources: CONTEMPORARY INDIA-I, Geography, Class IX NCERT, India Size and Location, p.4; Geography of India, Majid Husain, India–Political Aspects, p.29; Geography of India, Majid Husain, India–Political Aspects, p.48

4. Landlocked States vs. Frontier States of India (intermediate)

In Indian political geography, we categorize states based on their external boundaries into three main types: **Frontier States**, **Coastal States**, and **Landlocked States**. Understanding the distinction is crucial for administration, security, and trade analysis. Frontier States are those that share a land boundary with an international neighbor. For example, India shares a 3,323 km long border with Pakistan (the Radcliffe Line), which involves the states of Gujarat, Rajasthan, and Punjab, along with the Union Territories of Jammu & Kashmir and Ladakh Geography of India, Majid Husain, India–Political Aspects, p.35. It is a common misconception to group all northern states as bordering Pakistan; however, Himachal Pradesh is a frontier state that borders China, not Pakistan Geography of India, Majid Husain, India–Political Aspects, p.29.

Landlocked States, by definition, are those that have no access to the sea and share no international land border. They are entirely surrounded by other Indian states. While many states are landlocked in the sense that they don't touch the ocean, the UPSC specifically looks for states that also lack an international frontier. There are exactly five such states in India: Haryana, Madhya Pradesh, Chhattisgarh, Jharkhand, and Telangana. For instance, while Punjab shares a border with Pakistan, its neighbor Haryana is purely landlocked, bordered only by Rajasthan, Punjab, Himachal Pradesh, and Uttar Pradesh Geography of India, Majid Husain, Agriculture, p.70.

Category	Definition	Examples
Frontier State	Shares a land border with a foreign country.	Punjab, Rajasthan, Arunachal Pradesh, Bihar.
Coastal State	Has a coastline but no international land border.	Kerala, Andhra Pradesh, Odisha, Karnataka.
Landlocked State	No coastline AND no international land border.	Haryana, Madhya Pradesh, Jharkhand, Chhattisgarh, Telangana.

Sources: Geography of India, Majid Husain, India–Political Aspects, p.35; Geography of India, Majid Husain, India–Political Aspects, p.29; Geography of India, Majid Husain, Agriculture, p.70

5. Security Dimensions: Border Guarding Forces (BGF) (exam-level)

To understand India's territorial integrity, we must look at the specialized units that guard our frontiers during peacetime. Unlike the Indian Army, which is primarily responsible for war-time defense under the Ministry of Defence, our Border Guarding Forces (BGFs) are Central Armed Police Forces (CAPFs) functioning under the Ministry of Home Affairs (MHA). Following the Kargil War, India adopted the 'One Border, One Force' principle to ensure accountability and avoid jurisdictional confusion between different agencies.

The Border Security Force (BSF) is perhaps the most prominent, tasked with guarding the borders with Pakistan and Bangladesh. This force operates in some of the most hostile environments on Earth — from the salt marshes of the Rann of Kutch in Gujarat and the blistering sands of Rajasthan to the riverine borders and fertile plains of Punjab. This border was originally demarcated by the Radcliffe Award in 1947 Geography of India, Majid Husain, India–Political Aspects, p.35. The BSF faces unique challenges, ranging from trans-border crimes to the tragic 2001 skirmish at Peerdivah village where 18 personnel were killed during a standoff with the then-Bangladesh Rifles Geography of India, Majid Husain, India–Political Aspects, p.43.

Beyond the BSF, other forces manage specific sectors based on the diplomatic and geographical nature of the neighbor. The Indo-Tibetan Border Police (ITBP) guards the high-altitude Himalayan frontier with China, while the Sashastra Seema Bal (SSB) monitors the 'open' borders with Nepal and Bhutan. The Assam Rifles, India's oldest paramilitary force, manages the rugged Indo-Myanmar border. A critical aspect of border management is dealing with infiltration. As noted in legal scholarship, mass infiltration into states like West Bengal and Assam isn't just a communal issue but a legal challenge to national sovereignty Introduction to the Constitution of India, D. D. Basu, HOW THE CONSTITUTION HAS WORKED, p.482. Managing these borders effectively requires a balance between security and the socio-political realities of the border populations.

Force	Border Responsibility	Primary Terrain/Context
BSF	Pakistan & Bangladesh	Deserts, Riverine, Marshes, Plains
ITBP	China	High-Altitude Mountains (Himalayas)
SSB	Nepal & Bhutan	Open borders, cross-border movement
Assam Rifles	Myanmar	Jungles, Hilly Tribal belts

Sources: Geography of India ,Majid Husain, (McGrawHill 9th ed.), India–Political Aspects, p.35; Geography of India ,Majid Husain, (McGrawHill 9th ed.), India–Political Aspects, p.43; Introduction to the Constitution of India, D. D. Basu (26th ed.), HOW THE CONSTITUTION HAS WORKED, p.482; Indian Polity, M. Laxmikanth(7th ed.), Union Territories, p.412

6. The Indo-Pak Border: Geopolitics and Map Details (exam-level)

The border between India and Pakistan, spanning approximately 3,323 km, is one of the most complex and heavily monitored boundaries in the world. It was primarily defined by the Radcliffe Award in 1947, named after Sir Cyril Radcliffe, who headed the Boundary Commission. Interestingly, the actual contours of the new map were not revealed to the public until August 17, 1947—two days after independence—leading to immense confusion and tragic displacement History, Reconstruction of Post-colonial India, p.102. Geographically, this border is unique because it traverses four distinct terrains: the marshy Rann of Kutch in Gujarat, the Thar Desert in Rajasthan, the fertile plains of Punjab, and the rugged mountains of Jammu & Kashmir and Ladakh.

The administrative units bordering Pakistan have changed recently due to the reorganization of Jammu and Kashmir. Today, the border is shared by three states (Gujarat, Rajasthan, and Punjab) and two Union Territories (Jammu & Kashmir and Ladakh). It is important to note that while Punjab shares a long border with Pakistan, neighboring states like Haryana and Himachal Pradesh do not; Himachal Pradesh instead shares its international boundary with China Geography of India, India–Political Aspects, p.35.

Beyond the main International Border (IB), two specific sectors remain geopolitically sensitive:

• Sir Creek: A 96-km long tidal estuary in the Rann of Kutch. India advocates for the Thalweg Principle (dividing the waterway down the middle of the navigable channel), while Pakistan claims the entire creek based on colonial-era maps of the Sind province Geography of India, India–Political Aspects, p.40.
• The Line of Control (LoC): Unlike the settled IB in the plains, the LoC is a military-controlled de facto border in the mountainous region of Kashmir. It has been the site of numerous conflicts, most notably the 1999 Kargil War, sparked by infiltrations into unmanned high-altitude posts A Brief History of Modern India, After Nehru..., p.755.

Region	Terrain Type	Key Characteristics
Gujarat	Marshy/Salt Flat	Dispute over Sir Creek and maritime boundaries.
Rajasthan	Arid Desert	The longest state-level segment; shifts due to sand dunes.
Punjab	Alluvial Plains	Site of the Wagah-Attari border crossing.
J&K and Ladakh	High Mountains	Includes the Line of Control (LoC) and Siachen Glacier.

Sources: History , class XII (Tamilnadu state board 2024 ed.), Reconstruction of Post-colonial India, p.102; Geography of India ,Majid Husain, (McGrawHill 9th ed.), India–Political Aspects, p.35, 40; Rajiv Ahir. A Brief History of Modern India (2019 ed.), After Nehru..., p.755

7. Solving the Original PYQ (exam-level)

Now that you have mastered the political map of India and the spatial distribution of our neighbors, this question serves as a perfect application of your mental mapping skills. To solve this, you must synthesize your knowledge of the Radcliffe Line with the specific administrative boundaries of Western India. As detailed in Geography of India by Majid Husain, the 3,323 km border is not just a political line but a transition through diverse geographical terrains, starting from the maritime influence in the south to the high-altitude mountains in the north.

To arrive at the correct answer, Option (B), you should visualize the Indian map moving systematically from south to north along the western frontier. Your reasoning should follow a logical sequence: Gujarat provides the coastal and marshy anchor (Rann of Kutch), followed by the vast desert stretches of Rajasthan, the river-integrated fertile plains of Punjab, and finally the mountainous regions of Jammu and Kashmir. This contiguous mapping approach ensures you don't miss any administrative unit that touches the international boundary. While Jammu and Kashmir is now classified as a Union Territory, it remains the definitive northern anchor for the border with Pakistan in this classic geographic framework.

The common traps in this question involve 'near-miss' states like Himachal Pradesh and Haryana, which UPSC often uses to confuse students. Crucially, Haryana is a landlocked state that sits behind Punjab and Rajasthan, having no direct contact with the international border. Similarly, Himachal Pradesh is tucked further east, sharing its rugged boundary with China rather than Pakistan. By identifying these 'interiors' or 'eastern' states as distractors, you can quickly eliminate Options (A), (C), and (D). The ability to distinguish between states that are proximate to the border versus those that are actually contiguous with it is a vital skill for clearing the Preliminary exam.