Match List I with List II and select the correct answer using the code given below the lists: List I (Himalayan Peaks) A. Nanga Parbat B. Nanda Devi C. Kanchanjunga list II (States) 1. J&K 2. Sikkim 3. Uttarakhand Code: A B C

1. Longitudinal Divisions of the Himalayas (basic)

Welcome to your first step in mastering the majestic Himalayas! To understand these mountains, we must first look at how they are stacked from North to South. Rather than being a single wall of rock, the Himalayas consist of four parallel longitudinal ranges that vary in age, height, and geological composition. These ranges are separated by deep valleys and plateaus, stretching about 2,500 km from the Indus River in the west to the Brahmaputra in the east Geography of India, Physiography, p.1.

The core of the system is the Greater Himalayas, also known as the Himadri. This is the highest and most continuous range on Earth, containing almost all the world's peaks above 8,000 metres. It is perpetually covered in snow and hosts iconic peaks like Mount Everest and Kanchenjunga Exploring Society: India and Beyond, Geographical Diversity of India, p.6. To its south lies the Lesser Himalayas (Himachal), a rugged system with an altitude between 3,700 and 4,500 metres. This region is famous for its lush forests and popular hill stations like Shimla, Mussoorie, and Nainital Contemporary India-I, Physical Features of India, p.8.

Finally, the southernmost and youngest chain is the Shiwalik or Outer Himalayas. These are low-lying hills (900–1,100 metres) composed of loose sediments brought down by Himalayan rivers. Beyond the Himadri to the north lies the Trans-Himalaya, which includes ranges like the Karakoram and Ladakh. Understanding these divisions helps us locate India's highest peaks within their specific geographical and political contexts, such as Nanda Devi in the Garhwal region of Uttarakhand or Nanga Parbat as the western anchor of the entire chain.

Range Name	Other Name	Key Characteristics
Greater Himalayas	Himadri	Highest peaks (Everest, Kanchenjunga); core is granite.
Lesser Himalayas	Himachal	Contains Pir Panjal & Dhauladhar ranges; famous for hill stations.
Outer Himalayas	Shiwalik	Lowest range; made of unconsolidated sediments; forms 'Duns'.

Sources: Geography of India, Physiography, p.1; Exploring Society: India and Beyond, Geographical Diversity of India, p.6; Contemporary India-I, Physical Features of India, p.8

2. Regional (West to East) Classification (basic)

While we often study the Himalayas through their north-to-south longitudinal ranges (like the Himadri or Shiwaliks), geographers also classify them from West to East. This regional classification is primarily based on the river valleys that cut through the mountains, acting as natural boundaries. This transverse division was famously proposed by Sir Sidney Burrard and later refined by scholars like Prof. S.P. Chatterjee Geography of India, Physiography, p.13. Moving from West to East, we identify four primary segments defined by major river systems:

• Punjab Himalayas: Located between the Indus and the Satluj rivers. This section is also regionally known as the Kashmir and Himachal Himalayas as it stretches eastward CONTEMPORARY INDIA-I, Physical Features of India, p.10.
• Kumaon Himalayas: This part lies between the Satluj and the Kali rivers. It is home to prominent peaks like Nanda Devi.
• Nepal Himalayas: Stretching between the Kali and Teesta rivers, this is the central and highest portion of the mountain chain, containing Mt. Everest and Kanchenjunga.
• Assam Himalayas: Situated between the Teesta and Dihang (Brahmaputra) rivers. The Brahmaputra marks the easternmost limit of the main Himalayan arc CONTEMPORARY INDIA-I, Physical Features of India, p.10.

Beyond the Dihang gorge, the mountains take a sharp southward bend, forming the Purvachal or Eastern hills. These include the Patkai, Naga, and Mizo hills, which are composed mainly of strong sandstones and sedimentary rocks CONTEMPORARY INDIA-I, Physical Features of India, p.10.

Regional Division	Western River Boundary	Eastern River Boundary
Punjab Himalayas	Indus	Satluj
Kumaon Himalayas	Satluj	Kali
Nepal Himalayas	Kali	Teesta
Assam Himalayas	Teesta	Dihang (Brahmaputra)

Sources: Geography of India, Physiography, p.13; CONTEMPORARY INDIA-I, Physical Features of India, p.10

3. The Trans-Himalayan Ranges (intermediate)

While the Great Himalayas often steal the spotlight, the Trans-Himalayan Ranges (also known as the Tibetan Himalayas) are an older and equally fascinating geological feature. Located immediately north of the Great Himalayan Range, these mountains were formed by the same Tethys Sea sediments but are structurally distinct. The Trans-Himalayas primarily consist of three major parallel ranges within Indian territory: the Karakoram, the Ladakh, and the Zanskar ranges.

The Karakoram Range is the northernmost and is often called the "Backbone of High Asia." It houses K2 (Godwin-Austen), the second-highest peak in the world. To its north lies the Aghil Pass, which historically connected Ladakh with the Xinjiang province of China Geography of India, Physiography, p.19. Moving south, we encounter the Ladakh Range. This region is a classic cold desert characterized by extremely thin air and high sun intensity. During summers, while day temperatures might barely cross 0°C, night temperatures can plummet to -40°C Geography of India, Physiography, p.48.

A critical geographical feature of this zone is the Indus River. Originating near Mount Kailash in Tibet, the Indus enters India and flows in a nearly straight northwest course, specifically carved between the Ladakh Range to its north and the Zanskar Range to its south Geography of India, The Drainage System of India, p.9. Because these ranges lie to the north of the Great Himalayas, they fall in a rain shadow area, receiving a mere 10 cm of annual rainfall Geography of India, Physiography, p.48.

Range (North to South)	Key Characteristic
Karakoram	Highest altitude; includes K2 and Siachen Glacier.
Ladakh	Cold desert plateau; located north of the Indus River.
Zanskar	Bordered by the Indus River to the north; connects to the Great Himalayas.

Sources: Geography of India, Physiography, p.19; Geography of India, Physiography, p.48; Geography of India, The Drainage System of India, p.9

4. Important Glaciers and River Sources (intermediate)

In the high altitudes of the Himalayas, glaciers act as the 'Water Towers of Asia'. These massive bodies of moving ice are not just frozen landscapes; they are the primary perennial sources for India's greatest river systems. To master this topic, we must look at them through two lenses: their geographic location (the mountain range they occupy) and the drainage they feed.

The glaciers of the Karakoram Range are the most formidable, often described as remnants of the Pleistocene Age. Unlike the smaller glaciers of the Pir Panjal, Karakoram glaciers like the Siachen (76 km long) and Hispar are among the largest outside the polar regions Geography of India, Physiography, p.24. These glaciers move slowly — about 8 to 15 cm per day at the edges — and provide the base flow for the Indus river system Geography of India, Physiography, p.26.

Glacier	Region/Range	Associated River/Feature
Siachen	Karakoram (Ladakh)	Nubra River (feeds the Shyok/Indus)
Gangotri	Uttarakhand	Bhagirathi (Source of Ganga) at 'Gomukh'
Zemu	Sikkim/Nepal	Teesta River (Eastern Himalaya)
Biafo	Karakoram (Baltistan)	Shigar River
Sonapani	Pir Panjal (Lahaul-Spiti)	Chandra Valley (near Rohtang Pass)

It is crucial to understand that many major rivers, such as the Indus, Satluj, and Brahmaputra, are antecedent in nature. This means they existed before the Himalayas were fully uplifted, cutting deep gorges through the mountains as they rose Geography of India, The Drainage System of India, p.6. Today, these rivers are sustained during the non-monsoon months by the melting of glaciers like Rimo and Drang Drung. However, contemporary studies show a worrying trend: nearly 75% of Himalayan glaciers are currently receding due to climate shifts, with the Gangotri Glacier retreating at an average rate of about 12 meters per year Geography of India, Physiography, p.27.

Sources: Geography of India, Physiography, p.24, 26, 27; Geography of India, The Drainage System of India, p.6

5. Strategic Mountain Passes (La) (exam-level)

In the context of the Himalayas, a Pass (locally known as 'La') is more than just a gap in the mountains; it is a strategic artery that has facilitated trade, migration, and military expeditions for millennia. Geographically, these passes are natural depressions or notches in the mountain ranges, often formed by glacial erosion or river action. Understanding these passes is crucial for UPSC because they define India’s connectivity with its neighbors—specifically Tibet (China), Myanmar, and Pakistan-occupied regions.

The distribution of these passes follows the longitudinal extent of the Himalayas. In the Western Himalayas (Ladakh and Jammu & Kashmir), passes like Khardung La serve as vital links to the Siachen Glacier, while the Qara Tagh Pass in the Karakoram range remains a testament to the ancient Silk Road Majid Husain, Geography of India, Physiography, p.21. Moving eastward into Himachal Pradesh and Uttarakhand, the character of the passes shifts toward spiritual and hydrological significance. For instance, Shipki La is the point where the Satluj River carves its way into India, and the trio of Lipu Lekh, Mana, and Niti passes are the primary gateways for pilgrims undertaking the Kailash-Manasarovar Yatra Majid Husain, Geography of India, Physiography, p.22.

The Eastern Himalayas (Sikkim and Arunachal Pradesh) house passes that are high-stakes border posts. Nathu La in Sikkim is perhaps the most famous, acting as a major trading post between India and China since its reopening in 2006. Further east, in Arunachal Pradesh, passes like Bum La and Diphu Pass (near the tri-junction of India, China, and Myanmar) are essential for regional security and connectivity Majid Husain, Geography of India, Physiography, p.20.

Region	Key Passes	Strategic Significance
Ladakh	Khardung La, Chang La, Thang La	Highest motorable routes; access to Siachen and Leh.
Himachal Pradesh	Shipki La, Rohtang Pass, Debsa	Connects Kullu-Spiti; Satluj river entry point.
Uttarakhand	Lipu Lekh, Mana, Niti, Muling La	Major pilgrimage routes to Tibet; border trade.
Sikkim / Arunachal	Nathu La, Bum La, Pangsau	Indo-China trade; connectivity to Myanmar.

Sources: Geography of India, Physiography, p.20; Geography of India, Physiography, p.21; Geography of India, Physiography, p.22

6. Major Himalayan Peaks and Their Locations (exam-level)

To master the geography of the Himalayas, we must look at the range as a massive arc anchored by two 'sentinels' and punctuated by several high-altitude massifs. At the far western end lies Nanga Parbat (8,126m). This peak is geographically significant because it marks the Western Syntaxial Bend, where the mountain range takes a sharp, hairpin turn southward, and the Indus River carves one of the world's deepest gorges Geography of India, Physiography, p.17. Located in the Jammu and Kashmir region (specifically Gilgit-Baltistan), it is often called the 'Naked Mountain' and serves as the western gateway to the Great Himalayas. Moving eastward into the Kumaon and Garhwal Himalayas, we find Nanda Devi (7,817m). In the context of the UPSC, it is vital to remember that Nanda Devi holds the distinction of being the highest peak situated entirely within India, as peaks like K2 and Kanchenjunga lie on international borders or in disputed territories CONTEMPORARY INDIA-I, Physical Features of India, p.8. Located in Uttarakhand, it is surrounded by a ring of high peaks known as the Nanda Devi Sanctuary. Further east, on the border between Sikkim and Nepal, stands Kanchenjunga (8,598m). It is the third-highest peak in the world and is considered sacred by the people of Sikkim. Finally, the eastern extremity of the Great Himalayas is marked by Namcha Barwa (7,756m). Similar to Nanga Parbat in the west, this peak marks the Eastern Syntaxial Bend, where the mountains turn sharply south after the Brahmaputra (Tsangpo) river crosses into India Geography of India, Physiography, p.17. Understanding these peaks is not just about memorizing heights, but about recognizing them as the structural pillars that define the shape and extent of the Indian subcontinent's northern boundary.

Peak	Location/State	Significance
Nanga Parbat	Jammu & Kashmir (Western Anchor)	Marks the Western Syntaxial Bend and the Indus Gorge.
Nanda Devi	Uttarakhand	Highest peak located entirely within Indian territory.
Kanchenjunga	Sikkim (Border with Nepal)	Third highest peak in the world; highest in India (administered).
Namcha Barwa	Arunachal Pradesh/Tibet border	Marks the Eastern Syntaxial Bend near the Brahmaputra.

Sources: Geography of India, Physiography, p.17; CONTEMPORARY INDIA-I, Physical Features of India, p.8

7. Solving the Original PYQ (exam-level)

This question effectively synthesizes your knowledge of the physiographic divisions of India and the regional distribution of Himalayan peaks. Having mastered the building blocks of the Himalayan arc, you can now apply the "anchor point" strategy. You’ve learned that the Himalayas are not just a continuous wall but are divided into regional segments—the Kashmir, Kumaon, and Sikkim Himalayas. This question tests your ability to map specific high-altitude peaks to these political and physical boundaries, a core requirement for any civil services aspirant as outlined in NCERT Class IX Contemporary India-I.

To arrive at the correct answer, walk through the logic of geographic placement: Nanga Parbat is the westernmost anchor of the Great Himalayas, situated in the Jammu and Kashmir region (A-1). Moving east, Nanda Devi is the highest peak in the Uttarakhand (Kumaon) Himalayas (B-3). Finally, Kanchanjunga, the highest peak in India, stands on the border of Sikkim and Nepal (C-2). Aligning these pairs (A-1, B-3, C-2) leads you directly to the sequence 1, 3, 2, which is Option (B). This step-by-step spatial reasoning is exactly how you should approach complex mapping questions in the actual exam.

UPSC frequently uses proximity traps to confuse students. For instance, Option (A) presents a simple 1-2-3 sequence, which is a common distractor for candidates who have not memorized the exact state locations. Options (C) and (D) attempt to lure you into swapping the western and eastern peaks, testing if you might confuse Kanchanjunga (East) with the peaks of the Karakoram or Kashmir ranges (West). As noted in Geography of India by Majid Husain, identifying Nanga Parbat as the western terminus is essential to avoid these traps and correctly orient yourself across the Himalayan map.