Physical Features of India

The Himalayas are the major mountain range in northern India. For exams remember it as India's northern natural boundary.

The Himalayas are young fold mountains and are geologically young. For exams remember the term fold mountains.

The Northern Plains are formed by alluvial deposits of the Indus Ganga and Brahmaputra river systems. For exams remember alluvial plains.

The Ganga Brahmaputra Delta is famous as the Sundarbans Delta. For exams remember it as a large delta of the world.

Direct answer: Option A is correct. The Peninsular Plateau is an ancient, stable part of India’s crust and is mainly made of very old hard igneous and metamorphic rocks. Step by step: magma cooled and formed igneous rocks; older rocks were changed by heat and pressure into metamorphic rocks; long erosion exposed and shaped this ancient block; it did not form mainly from recent river deposits. Option A therefore matches the geological structure. B is wrong because new alluvial soil is deposited by rivers, especially in plains such as the Northern Plains; it is not the main bedrock of the Peninsular Plateau. C is wrong because marine coral forms particular reefs and coastal deposits, not this broad ancient plateau. D is wrong because glacial ice is not a rock foundation and does not describe the plateau. The plateau may have layers of soil and local sediment, but the question asks what it is mainly made of. Exam cue: “Peninsular Plateau = old crystalline igneous and metamorphic rocks.”

The Aravalli is an ancient range and extends roughly from southwest to northeast. For exams remember its relation with Rajasthan.

The Thar Desert is located in northwestern India mainly in Rajasthan. For exams remember it as the Great Indian Desert.

The direct answer is B: the Western Ghats. The Western Ghats, also called the Sahyadri range, run roughly parallel to the western coast of India, from the northern Maharashtra-Gujarat region toward Kerala and Tamil Nadu. They form an important physical barrier, influence the southwest monsoon and contain rich biodiversity. Option A is wrong because the Eastern Ghats lie mainly along the eastern side of India and are more discontinuous. Option B is correct because the name itself identifies the range beside the western coast. Option C is wrong because the Himalayas lie across the northern part of India, far from the western coastal strip. Option D is wrong because the Vindhyas are central Indian highlands and do not run along the western coast. A simple map memory is: Western Ghats—west coast; Eastern Ghats—east coast; Himalayas—north. The alternative name Sahyadri is also useful in examinations.

The Eastern Ghats extend along India's eastern coast. For exams remember they are more discontinuous than the Western Ghats.

The Narmada flows westward through a rift valley. For exams remember the westward flow of Narmada and Tapi.

The direct answer is B, coral islands. Lakshadweep is a group of small islands in the Arabian Sea, and most of its islands are formed from coral deposits. Corals are tiny sea animals that build hard limestone-like structures in warm, shallow, clear seawater. Over a long time, these structures can form reefs, atolls and islands. Therefore the fact chain is: warm shallow sea → coral growth → coral reef or atoll → Lakshadweep islands. Option A, volcanic islands, is not correct because volcanic islands are built by lava and volcanic eruptions; this describes a different process. Option B is correct because Lakshadweep is India’s coral island group. Option C, river islands, form from sediment deposited by rivers, usually in river channels or deltas, not in the open Arabian Sea in this way. Option D, glacial islands, would be associated with ice and glaciers, which are not the origin of Lakshadweep. Remember: Lakshadweep lies to the west of India in the Arabian Sea and is linked with coral.

The Andaman and Nicobar Islands are located in the Bay of Bengal. For exams remember them as the eastern island group.

Kanchenjunga is considered the highest major peak of India. For exams it is linked with the Sikkim region.

Anamudi is the highest peak of South India and Peninsular India. For exams connect it with Kerala and Western Ghats.

The Deccan Plateau is a large plateau region of southern India. For exams remember it as part of the Peninsular Plateau.

The Malwa Plateau is mainly located in central India. For exams remember it as the northwestern part of the Peninsular Plateau.

Chotanagpur Plateau is famous for coal iron ore and other minerals. For exams remember the Jharkhand region.

The Northern Plains are formed by river brought alluvial soil and are very fertile. For exams remember their agricultural importance.

Bhabar is a belt of pebble deposits at the foothills of the Himalayas. For exams remember the order of Bhabar and Terai.

Terai is a moist and marshy belt south of Bhabar. For exams connect Terai with agriculture and forests.

Bhangar is old alluvium found in higher areas. For exams remember Bhangar as old and Khadar as new.

The Shiwaliks form the outermost and southernmost Himalayan range. They are relatively low hills made of loose sediments. Himadri is the northernmost and highest range. Exam tip: remember the order—Himadri, Himachal, Shiwalik.

The Himalayan Mountains are one of India's major physical divisions. For exams remember the list of six divisions.

Andaman and Nicobar are included in India's major island groups. For exams remember the Bay of Bengal.

The western coastal plains are narrow between the Western Ghats and Arabian Sea. For exams remember the comparison with the eastern coast.