The Coastal Plains and Islands

The governing geographical concept is the island group, or archipelago. An island is a naturally formed piece of land surrounded by water on all sides, and a collection of islands is called an island group. In India’s physiographic classification, the Andaman and Nicobar Islands in the Bay of Bengal and Lakshadweep in the Arabian Sea represent land areas separated from the mainland by water. Thus option A is correct. The Northern Plains are broad alluvial lowlands connected to the mainland; the Himalayas are a high mountain system; and the Peninsular Plateau is an elevated ancient rocky region. These three divisions are not defined as land enclosed by water. The answer follows from the physical definition of an island, not merely from the location of a particular Indian region.

The correct answer is A, Andaman and Nicobar. India’s major physiographic divisions include the Himalayan Mountains, the Northern Plains, the Peninsular Plateau, the Indian Desert, the Coastal Plains, and the Islands. Andaman and Nicobar is an island group in the Bay of Bengal, so it represents the island division. The islands are separate landmasses surrounded by water, unlike mainland mountains, plains, or deserts. B, the Thar, is a desert region in north-western India, not an island group. C, the Himalayas, are young fold mountains along the northern border. D, the Ganga Plain, is a broad alluvial plain formed largely by river deposition. Memory cue: Andaman–Nicobar belongs to the Bay of Bengal, while Lakshadweep belongs to the Arabian Sea.

The direct answer is A: India’s western coastal plain lies along the Arabian Sea. A coastal plain is the relatively narrow lowland between the sea and the nearby highland or plateau. On India’s western side, this plain runs beside the Arabian Sea, from the Gujarat region towards Kerala. Option A is correct because it names the sea immediately west of mainland India. Option B is wrong because the Bay of Bengal lies along India’s eastern coast. Option C is less precise and is not the expected answer: the Arabian Sea is the specific water body bordering the western coastal plain, although both are parts of the wider Indian Ocean region. Option D is wrong because the Caspian Sea is far from India and is an inland sea. Memory cue: west of India means Arabian Sea; east of India means Bay of Bengal.

The eastern coastal plain lies along the Bay of Bengal. Exam tip: connect the eastern coast with the Bay of Bengal.

The western coastal plain lies between the Western Ghats and the Arabian Sea. Exam tip: remember it as a narrow strip.

The eastern coastal plain lies between the Eastern Ghats and the Bay of Bengal. Exam tip: study Eastern Ghats and eastern coast together.

The western coastal plain is comparatively narrow. Exam tip: remember that the western coast is less wide than the eastern coast.

The eastern coastal plain is wider than the western coast. Exam tip: connect the eastern coast with delta plains.

The northern part of the western coast is called Konkan. Exam tip: connect Konkan with the Mumbai to Goa coastal region.

The middle part of the western coast is called the Kannad Plain. Exam tip: remember the three parts of the western coast in order.

Answer: C, the Malabar Coast. India’s western coastal plain lies beside the Arabian Sea and is commonly divided into named sections. The northern section includes the Konkan Coast, while the southern section is known as the Malabar Coast, especially along Kerala and nearby areas. A is wrong because Northern Circars refers to a section of the eastern coast. B is wrong because Konkan is mainly the northern part of the western coastal plain, not its southern part. D is wrong because the Coromandel Coast belongs to the eastern coast along Tamil Nadu and adjoining areas. A useful memory cue is: Konkan is north-western, Malabar is south-western, and Coromandel is south-eastern.

The northern part of the eastern coast is called Northern Circar. Exam tip: connect it with the northern section of the eastern coast.

The southern part of the eastern coast is called the Coromandel Coast. Exam tip: remember Coromandel towards Tamil Nadu.

These rivers flow eastward and form deltas on the eastern coast. Exam tip: connect the eastern coast with deltas.

The direct answer is A: Godavari forms a delta on the eastern coast. A delta forms when a river slows near its mouth and deposits the sediment it has carried. Godavari flows eastward across Peninsular India and enters the Bay of Bengal. Its large sediment load and distributary channels help create a broad delta on the eastern coastal plain. The reasoning is: identify Godavari; recall that it is an east-flowing Peninsular river; identify its destination as the Bay of Bengal; connect major east-flowing rivers with delta formation on the eastern coast. Option A is correct because Godavari is one of the important east-flowing rivers that forms a delta. Option B is wrong because Narmada flows westward into the Arabian Sea and is associated with an estuary rather than a large delta. Option C is wrong for the same basic reason: Tapi also flows westward into the Arabian Sea. Option D is wrong because Luni is an inland-draining river of the arid region and does not form the large eastern coastal delta described here. The memory cue is: “East-flowing Godavari goes to the Bay of Bengal and builds a delta.”

The direct answer is C: Chilika Lake is in Odisha. Chilika is a large brackish-water lagoon on the eastern coast of India. It is separated from the Bay of Bengal by a barrier-like coastal formation but is connected with the sea, so its water contains both fresh-water and sea-water influence. The reasoning is straightforward: locate Chilika on the eastern coast; recall that it lies in Odisha; then distinguish it from other important coastal states. Option A is wrong because Kerala is associated with its backwaters and lagoons, not the location of Chilika. Option B is wrong because Gujarat has coastal wetlands and the Gulf of Kachchh, but Chilika is not there. Option C is correct because Chilika lies along the Odisha coast and is a major lagoon and wetland. Option D is wrong because Maharashtra has parts of the Konkan coast, but Chilika is not located there. The useful exam cue is: “Chilika—Odisha—eastern coast—brackish lagoon.” Do not confuse it with Kerala’s backwaters or Gujarat’s coastal wetlands.

Chilika is one of India’s important salt water lakes. Exam tip: connect Chilika with Odisha and lagoon.

Lakshadweep lies near the Malabar coast of Kerala. Exam tip: connect Lakshadweep with the Arabian Sea and Malabar.

The Lakshadweep group was formed by the accumulation of coral reefs and coral deposits, so it consists of coral islands. Volcanic islands are formed by volcanic eruptions, which is not the origin of Lakshadweep. Exam tip: remember Lakshadweep as the coral islands of the Arabian Sea.

Kavaratti is the administrative capital of Lakshadweep. Exam tip: keep Port Blair separate for Andaman and Nicobar.

The Andaman and Nicobar Islands are located in the Bay of Bengal. Exam tip: connect them with India’s eastern island group.

Port Blair is the capital of Andaman and Nicobar Islands. Exam tip: remember the difference between Kavaratti and Port Blair.

Barren Island is famous for India’s active volcano. Exam tip: connect it with the Andaman and Nicobar region.

The Andaman and Nicobar Islands form a long chain in the north south direction. Exam tip: remember their elongated island chain.

The direct answer is A: Lakshadweep is in the Arabian Sea. To solve location-pair questions, first identify the island group and then locate the surrounding water body. Lakshadweep is a group of coral islands situated off the south-western coast of India in the Arabian Sea. Option A is correct because it joins Lakshadweep with its actual sea. Option B is wrong because the Bay of Bengal lies to the east of India and is associated with island groups such as the Andaman and Nicobar Islands, not Lakshadweep. Option C is wrong because the Andaman Islands are in the Bay of Bengal, not the Arabian Sea. Option D is wrong in both parts: Chilika is a lagoon in Odisha, not a place in Gujarat; it is connected with the eastern coast and Bay of Bengal region. The important method is to use India’s coastline: Arabian Sea is on the west, Bay of Bengal on the east. Memory cue: Lakshadweep is west; Andaman and Nicobar are east. Do not mix these two island groups.