Mountains and Plateaus of India

The governing concept is the division of India into major physical regions. The Deccan Plateau is a broad elevated tableland in southern India and forms an important part of Peninsular India. It is bounded broadly by the Western Ghats and Eastern Ghats and slopes generally eastward, with several rivers crossing it. Thus option B is correct. The Northern Plain is the alluvial lowland formed largely by the Indus, Ganga and Brahmaputra systems, so option A is a different physical region. The Himalayas are the northern mountain system, not the Deccan, and the Sundarbans is a deltaic wetland in the Ganga-Brahmaputra delta. Therefore C and D are also clearly unsuitable.

The governing concept is the geological age and evolution of mountain systems. The Aravalli Range is regarded as one of India's oldest fold mountain systems, formed through ancient geological processes and subsequently worn down by prolonged erosion. Its present form is therefore much lower and more discontinuous than young, lofty ranges such as the Himalayas. Option C is correct because it states the defining reason for its importance in Indian geography. Option A reverses the fact: the Aravallis are not a very new range. Option B confuses a mountain range with an island, while option D describes neither their geology nor their general landscape. Their antiquity, not permanent snow cover, is the key idea.

The correct answer is the Arabian Sea. The Western Ghats, also called the Sahyadri Hills, form a long mountain chain along the western side of peninsular India. Because they lie close to and broadly parallel with India’s western coastline, the Arabian Sea is the relevant adjoining sea. The Bay of Bengal is on the eastern side, where the Eastern Ghats are found, while the Red Sea and Caspian Sea are outside this Indian coastal setting. This location also helps explain the Ghats’ influence on the southwest monsoon and their rich forests.

Option A, the Eastern coast, is correct. The Eastern Ghats are a discontinuous chain of hills along the eastern side of peninsular India. They lie broadly parallel to the Bay of Bengal and extend through parts of Odisha, Andhra Pradesh, and Tamil Nadu. Several major rivers, including the Mahanadi, Godavari, Krishna, and Kaveri, cut across or interrupt the range, which is why it is not a continuous wall of mountains. The Western Ghats, by contrast, are associated with the western coast beside the Arabian Sea. The north-western and south-western coast options do not describe the general location of the Eastern Ghats. The governing clue is the position of the range on the eastern side of the Deccan Plateau, so option A is the only correct choice.

Option C, the Western Ghats, is correct because Sahyadri is a traditional and widely used name for this mountain system. The Western Ghats run roughly parallel to India’s western coast, from the region of Gujarat and Maharashtra through Goa and Karnataka toward Kerala and Tamil Nadu. They influence the southwest monsoon, support important forests and biodiversity, and separate the narrow coastal plain from the interior Deccan Plateau. The Vindhya and Aravalli ranges are separate systems located mainly in central and northwestern India. The Shiwalik range forms the outer foothills of the Himalayas and is unrelated to the Sahyadri name. The key association is therefore Sahyadri equals Western Ghats, making option C the only correct answer.

Option B, the highest main range, is correct. Himadri is another name for the Great Himalaya or Inner Himalaya, the northernmost and highest major division of the Himalayan system. It contains many of the world’s highest peaks and extensive snowfields and glaciers. Its great elevation gives it a crucial role in the structure of the Himalayan mountain belt and in the origin of several important rivers. The Lesser or Middle Himalaya lies generally to its south, and the Shiwalik range is still lower and farther south. A coastal hill, desert dune, or island plateau is not a classification of Himadri and does not match its location or relief. The governing clue is the term “Great Himalaya,” which directly identifies Himadri as the highest principal Himalayan range.

The correct answer is Himachal. The Middle Himalaya is commonly called the Himachal or Lesser Himalaya. It lies south of the high Himadri range and north of the outer Shiwalik Hills. This belt includes many well-known hill stations and valleys, such as those associated with Himachal Pradesh, and its relief is generally lower and more varied than that of the Great Himalaya. Shiwalik refers to the outermost Himalayan range, Karakoram is a separate high mountain system farther north, and Deccan refers to a plateau rather than a Himalayan range.

Option B, South India, is correct. The Nilgiri Hills are an important mountain group in the southern part of the Western Ghats, near the meeting area of Tamil Nadu, Kerala, and Karnataka. Their geographical position places them firmly in South India. The hills are known for elevated plateaus, cool conditions compared with surrounding lowlands, forests, and the distinctive landscape of the southern Western Ghats. The Ganga Plain is a broad, low and relatively level alluvial region in northern India, while the Thar Desert is a dry region in the northwest. North-west India has different mountain and desert features and is not the setting of the Nilgiris. The name “Nilgiri,” often interpreted as blue mountains, may be a useful memory aid, but the answer is established primarily by their location in southern India.

The Annamalai, or Anamalai, Hills form an important highland section of the southern Western Ghats. They are located near the Kerala–Tamil Nadu region and are connected with the mountain system that runs along the western side of Peninsular India. Their geographical location, elevation, and continuity with the southern Western Ghats identify the correct answer. The Shiwalik range belongs to the outer Himalayas, the Aravalli range lies mainly in north-western India, and the Vindhya system is located in central India. None of those ranges is associated with the Annamalai Hills. Therefore, option A, Western Ghats, is correct. Remembering their position in southern Peninsular India helps distinguish them from the northern and central Indian ranges.

Anamudi is a major peak in Kerala and belongs to the southern section of the Western Ghats. It rises to approximately 2,695 metres above sea level and is widely recognized as the highest peak of the Western Ghats and of southern India. The question tests the relationship between a specific peak and the larger mountain system containing it. Because Anamudi lies in Kerala’s highlands within the Western Ghats, option B is correct. The Eastern Ghats are a discontinuous chain farther east, while the Aravalli and Satpura ranges occupy different parts of northern and central India. Their locations do not fit Anamudi. Thus the peak’s state location and its physical connection with the southern Western Ghats provide the decisive evidence for selecting option B.

The correct answer is mineral wealth. The Chota Nagpur Plateau, covering much of Jharkhand and adjoining parts of neighbouring states, is one of India’s most important mineral regions. It contains major deposits of coal, iron ore, mica, bauxite and several other minerals. These resources have supported iron and steel plants, power generation and other industries in eastern India. Pearl culture and marine fishing are associated with coastal or aquatic environments, while coconut plantations are characteristic of suitable tropical coastal areas. Thus mineral wealth is the defining feature tested here.

The correct answer is north-eastern India. The Meghalaya Plateau is an extension of the Peninsular Plateau into the northeast and lies mainly in Meghalaya, south of the Brahmaputra Valley. Important subdivisions include the Garo, Khasi and Jaintia Hills. Its location distinguishes it from the western, south-western and north-western parts of the country. Although it is called a plateau, its surface contains deeply cut valleys and prominent hill ranges. The association with Meghalaya and the Garo, Khasi and Jaintia Hills makes the north-eastern location clear.

The correct answer is Meghalaya because the Garo, Khasi and Jaintia Hills are the principal hill groups of this north-eastern Indian state. Together, they form important parts of the Meghalaya Plateau, which lies south of the Brahmaputra Valley and north of Bangladesh. The Khasi Hills include the area around Shillong, while the Garo Hills lie toward the western side and the Jaintia Hills toward the eastern side. Gujarat, Haryana and Maharashtra do contain hills and uplands, but none of these three named hill groups is their defining geographical feature. Thus, the location-based identification clearly supports option B.

The correct answer is Central India. The Vindhya Range is a prominent east–west trending highland system in the central part of the Indian subcontinent, mainly associated with Madhya Pradesh and adjoining regions. In traditional school geography, the Vindhyas are discussed with the Narmada Valley and the Satpura Range, and they help describe the division between northern India and the Peninsular Plateau. Lakshadweep is a group of coral islands, the Andaman Islands are in the Bay of Bengal, and the Kachchh coast belongs to western India; none is the principal setting of the Vindhya Range. Therefore, option A is correct.

The Satpura Range is located south of the Narmada River in central India. The Narmada flows westward through a tectonic rift valley, and the usual physical-geography description places the Vindhya Range to its north and the Satpura Range to its south. This north–south relationship is the governing concept needed to solve the question. Therefore, option B, Narmada, is correct. The Ganga and Brahmaputra belong mainly to the northern and north-eastern drainage systems, and the Yamuna is a major tributary of the Ganga; none provides the specific reference used for the position of Satpura. The question asks about the range’s location relative to a river, not about a river flowing through the range. The Narmada–Vindhya–Satpura arrangement makes the answer unambiguous.

The Maikal Range is an important part of the central Indian highland system and is generally treated as the eastern extension or a significant sub-range of the Satpura Range. It lies around the Amarkantak region, an important upland area from which the Narmada and several other rivers originate. This regional and structural association identifies Satpura as the correct answer. Option A is therefore correct. The Shiwalik Hills form the outer Himalayan belt, the Aravalli range extends through north-western India, and the Nilgiri Hills belong to the southern Western Ghats. Their locations and physical settings are different from those of the Maikal Range. The key reasoning is to identify the larger central Indian mountain system of which Maikal is considered a part, rather than confusing it with a nearby river-source region.

The Mahadeo Hills are a prominent section of the Satpura mountain system in central India. They are associated especially with the highlands of Madhya Pradesh and form part of the ancient upland relief of the Peninsular Plateau. This location and physical relationship make option B, Satpura, correct. The Himalayas are young fold mountains along northern India and are not the setting of the Mahadeo Hills. The Eastern Ghats form a discontinuous chain near the eastern side of the peninsula, while the Aravalli range lies mainly in north-western India. These alternatives therefore do not match the regional position of Mahadeo. The governing idea is classification of a smaller hill group within a larger mountain system: Mahadeo is identified as part of Satpura, not as an independent Himalayan, Eastern Ghats, or Aravalli unit.

The Amarkantak Plateau is an important highland in eastern Madhya Pradesh and is traditionally recognized as the source region of the Narmada River. From this area, the Narmada flows westward across central India and eventually reaches the Arabian Sea. The question tests a source-region relationship, so the important clue is the standard association between Amarkantak and Narmada. Option A is therefore correct. The Teesta is linked with the eastern Himalayan region, the Ravi rises in the Himalayas, and the Sabarmati originates in the Aravalli region of Rajasthan. These rivers have different source areas and drainage settings. Although other streams also rise around the Amarkantak highlands, the well-known river-origin association asked in school geography is Amarkantak–Narmada, which clearly supports option A.

The correct answer is Madhya Pradesh. The Malwa Plateau occupies a large part of western and central Madhya Pradesh and is one of the important plateau regions of central India. It extends toward adjoining areas, including parts of Rajasthan, but Madhya Pradesh is the state most strongly associated with its location and extent. Assam is primarily part of the Brahmaputra Valley and surrounding hill regions, Kerala is a coastal state on the south-western side of the peninsula, and Sikkim lies in the eastern Himalaya. Those settings do not represent the Malwa Plateau. Therefore, option A is the best and geographically precise answer.

The correct answer is Uttar Pradesh and Madhya Pradesh. The Bundelkhand Plateau is a rocky upland spread across parts of southern Uttar Pradesh and northern Madhya Pradesh. It is known for hard crystalline rocks, uneven relief and areas that may face water scarcity, although local conditions vary. Kerala and Karnataka are associated with the southern Western Ghats and adjoining plateau regions; Assam and Meghalaya belong to north-eastern valley and plateau settings; Punjab and Haryana are mainly linked with the alluvial plains. Since Bundelkhand crosses the boundary between Uttar Pradesh and Madhya Pradesh, option A gives the correct pair.

The correct answer is the Deccan Plateau. The Telangana Plateau forms part of the broad Deccan upland in peninsular India and is mainly associated with the interior region of Telangana and adjoining areas. The Deccan Plateau is a major division of the Peninsular Plateau and is built largely of ancient rocks, with extensive basaltic formations in many parts of the wider region. The Meghalaya and Shillong plateaus belong to north-eastern India, while the Ladakh Plateau lies in the high-altitude Trans-Himalayan region. Their locations and geological settings are different, so option A is the only suitable answer.

The Karnataka Plateau is a broad elevated region covering much of the interior of Karnataka. In the physical division of India, it is regarded as part of the southern Deccan Plateau, which occupies a large area of Peninsular India. The plateau contains varied hills, valleys, and relatively level uplands, and its general surface slopes eastward. Therefore, option A, Deccan Plateau, is correct. The Himalayan Plain is a low alluvial region built by rivers at the foot of the Himalayas. The Sundarbans is a deltaic and low-lying coastal region created by the Ganga–Brahmaputra system, while the Thar Desert is an arid area in north-western India. Their landforms and locations are different. The broad regional classification of Karnataka’s upland clearly places it within the Deccan Plateau.

The correct answer is A, the Deccan Plateau. The Maharashtra Plateau occupies a major part of Maharashtra and forms part of the larger Deccan upland of peninsular India. This region developed largely over extensive basaltic lava flows, which weathered into dark, clay-rich black soil, commonly called regur. That soil retains moisture and is especially suitable for cotton. The Kashmir Valley is an intermontane valley, while the Ganga and Brahmaputra plains are broad alluvial lowlands formed by river deposition. Therefore, the landform, rock origin, and soil association all support the Deccan Plateau option.

The correct answer is A, volcanic lava flow. The Deccan Trap is a vast basaltic formation produced by repeated outpourings of fluid lava through fissures during ancient volcanic activity. As successive lava sheets cooled and solidified, they created step-like layers; the word trap comes from a term associated with stairs. Later weathering of this basalt contributed to the formation of black cotton soil in much of the Deccan region. Glacial erosion produces features such as U-shaped valleys, sea-wave deposition affects coastal areas, and desert dust forms aeolian deposits. None of those processes explains the layered basalt of the Deccan Trap.

The correct answer is A, black soil. Much of the Deccan Plateau is underlain by basaltic lava, and the long-term weathering of this parent rock produced the dark, clay-rich soil known as black soil or regur. It has a high capacity to retain moisture and is traditionally associated with cotton cultivation, although other crops can also grow in it. Alluvial soil is most characteristic of river plains such as the Ganga basin. Sandy soil is common in arid and desert areas, while saline soil contains excessive soluble salts and is not the defining soil of the Deccan Plateau. The geological base and agricultural association therefore point clearly to A.