Rivers and Lakes of India

The correct answer is the Ganga. The river rises in the Himalayan region, receives numerous tributaries across the northern plains, and carries substantial sediment eastward. Near the Bay of Bengal, its flow divides into distributaries and contributes, together with the Brahmaputra and Meghna systems, to the enormous Ganga-Brahmaputra delta. Narmada flows west through a rift valley into the Arabian Sea, while Luni ends in the arid region of Rajasthan and Sabarmati also drains westward into the Arabian Sea. Hence option A best fits both the Himalayan origin and the Bay of Bengal delta described.

An inland drainage river does not carry its water to an ocean or sea through a permanent external channel. The Luni is associated with the dry region of Rajasthan and flows west-southwest from the Aravalli area. In its lower course, its water becomes increasingly saline and may disappear into marshy or inland areas rather than reaching the sea as a regular river. This makes it a standard example of inland drainage.

The Chambal, Betwa, and Ken are tributaries of the Yamuna and ultimately belong to the Ganga river system, whose waters reach the Bay of Bengal. The Luni, however, ends in the Rann of Kachchh region and does not form a normal route to the sea. Therefore option B, Luni, is correct. Arid climate, low and irregular rainfall, and high evaporation help explain its unusual drainage pattern.

Sambhar Lake is Rajasthan’s best-known saline lake and one of India’s important inland salt-producing areas. It lies in a shallow closed basin, so water entering the lake has no direct outlet to the sea. Under the hot and relatively dry climate, substantial evaporation takes place; water is lost as vapour while dissolved salts remain concentrated in the basin. This natural process supports salt extraction and explains the lake’s economic importance. Option A is correct because Sambhar is specifically associated with salt pans and salt production in Rajasthan. Dal Lake in Kashmir is a freshwater lake famous for tourism and houseboats. Loktak in Manipur is a freshwater lake known for floating phumdis, while Bhimtal in Uttarakhand is also freshwater. Their characteristics do not fit the question.

The Chambal is a major tributary of the Yamuna, so option B is the precise answer. It rises near the northern part of the Malwa Plateau and flows through Madhya Pradesh and Rajasthan before entering Uttar Pradesh. Its waters eventually join the Yamuna, and the Yamuna later contributes to the Ganga system. This distinction matters: Chambal is ultimately part of the wider Ganga river basin, but its direct confluence is with the Yamuna rather than with the Ganga itself. The Brahmaputra belongs to the eastern Himalayan river system, while the Godavari is a major east-flowing peninsular river. Neither receives the Chambal. Thus tracing the sequence of tributary and main river leads to Yamuna, making B more exact than the broader association with Ganga.

The correct answer is the Mahanadi. Hirakud Dam is constructed across the Mahanadi near Sambalpur in Odisha and is one of the important multipurpose river-valley projects of India. The reservoir supports irrigation, helps control floods, and contributes to hydroelectric power generation. Tapi flows westward toward the Arabian Sea, Periyar is a major river of Kerala, and Jhelum belongs to the Kashmir river system. These rivers are not associated with the Hirakud project. Remembering the link “Hirakud–Mahanadi–Odisha” provides a reliable way to identify option A in examinations.

The correct answer is the Krishna. It rises near Mahabaleshwar in the Western Ghats of Maharashtra and flows generally eastward across the Deccan Plateau through parts of Karnataka and Andhra Pradesh, now largely associated with Andhra Pradesh and Telangana, before entering the Bay of Bengal. The Krishna is therefore an east-flowing peninsular river. Mahi, Narmada, and Sabarmati flow westward and ultimately drain into the Arabian Sea. The combination of Western Ghats origin, the Karnataka–Andhra region, and an outlet in the Bay of Bengal identifies option A without ambiguity.

The correct answer is the Krishna River. Its traditional source is associated with the Mahabaleshwar region of Maharashtra in the Western Ghats, where water emerges near the Krishna Bai temple area. From there, the river flows eastward across the Deccan Plateau and eventually reaches the Bay of Bengal. Cauvery is associated with Talakaveri in the Brahmagiri Hills of Karnataka, Pennar rises in the Nandi Hills region, and Damodar rises in the Chota Nagpur Plateau. Since the question specifically gives Mahabaleshwar, the established geographical association is Krishna, making option B correct.

The Damodar River was historically called the “Sorrow of Bengal” because it caused repeated and destructive floods, especially before major flood-control and multipurpose projects were developed. During the monsoon, heavy runoff from its catchment could make the river overflow its banks. Floodwater damaged cultivated land, settlements, roads, and other forms of communication in parts of Bengal. The nickname therefore refers to the river’s historical flooding behaviour, not to every season or every stretch of its course. Option A is correct. Teesta, Son, and Ghaghara are also important rivers, but none is normally identified by this particular historical nickname. The answer is based on recognizing a well-known geographical association between the Damodar and recurrent floods in Bengal.

The correct answer is Cauvery, or Kaveri, because both Srirangapatna in Karnataka and Tiruchirappalli in Tamil Nadu are closely associated with this river. The Cauvery rises at Talakaveri in the Brahmagiri Hills, flows generally southeastward, and supports irrigation, settlements, and agriculture in southern India. Srirangapatna is an important river island formed by the Cauvery, while Tiruchirappalli stands on its banks and near its distributary system. Godavari is a major east-flowing river farther north, Mahi flows west to the Gulf of Khambhat, and Sutlej belongs to the Indus drainage system. Therefore, option B is unambiguous.

The correct answer is Loktak Lake in Manipur. Keibul Lamjao National Park is located on the lake and is widely described as the world’s only floating national park. Its floating land masses, called phumdis, are made from a mixture of vegetation, soil, and organic matter. These formations support wildlife and human activity and give Loktak its distinctive geographical character. Pulicat is a brackish coastal lagoon known for migratory birds, Nainital is a freshwater lake in Uttarakhand associated with a hill station, and Sambhar is India’s largest inland salt lake. Thus only option A matches the floating-national-park clue.

Mahi is the correct answer because it is a west-flowing peninsular river that ultimately empties into the Gulf of Khambhat in Gujarat. It rises in the Vindhya region of Madhya Pradesh, passes through Rajasthan and Gujarat, and reaches the Arabian Sea through the gulf. The westward drainage pattern is an important physical-geography feature: unlike most major peninsular rivers, Mahi does not flow toward the Bay of Bengal. Mahanadi, Cauvery, and Pennar are mainly east-flowing rivers that drain toward the Bay of Bengal. Therefore, the geographical direction and the named gulf together identify option A.

The Sabarmati is correct. It rises in the Aravalli region of Rajasthan and flows southwest through Rajasthan and Gujarat before reaching the Gulf of Khambhat. Ahmedabad, one of Gujarat’s major cities, is situated on the banks of the Sabarmati, making the river especially important in Indian geography and general knowledge. Brahmani is an east-flowing river of Odisha and Jharkhand, Wainganga is part of the Godavari river system, and Subarnarekha flows eastward into the Bay of Bengal. Their courses do not match the Aravalli-to-Khambhat description. Hence option A is the only suitable answer.

Pulicat Lake is the correct answer. It is a large brackish lagoon situated along the Andhra Pradesh–Tamil Nadu border and is renowned for Pulicat Lake Bird Sanctuary. The lagoon’s shallow coastal waters and wetland habitats attract many migratory birds, especially during the cooler season. Dal and Wular are important lakes of Jammu and Kashmir, with very different Himalayan settings; Dal is associated with Srinagar, while Wular is a large freshwater lake. Roopkund is a high-altitude glacial lake in Uttarakhand and is not a coastal bird sanctuary. Thus the border location, lagoon character, and migratory-bird clue all point to option A.

Narmada is the correct answer because it flows through a tectonic rift valley between the Vindhya Range to the north and the Satpura Range to the south. It generally flows westward from eastern Madhya Pradesh across central India and enters the Arabian Sea through the Gulf of Khambhat. This distinctive geological setting explains why Narmada is commonly grouped with west-flowing rift-valley rivers. Damodar is associated with the Chota Nagpur Plateau and the eastern drainage system, Teesta is a Himalayan river, and Betwa is a tributary of the Yamuna. Therefore, the range position and rift-valley clue identify option A.

The correct answer is the Gulf of Khambhat. The Tapi, also called the Tapti, rises near Multai in Madhya Pradesh and flows westward through parts of Maharashtra and Gujarat before entering the Arabian Sea through the Gulf of Khambhat. Its course is comparable in direction to that of the Narmada, another major west-flowing peninsular river. The Gulf of Mannar lies between southeastern India and Sri Lanka, the Gulf of Kachchh is farther north on Gujarat’s coast, and the Gulf of Aden is outside India near Yemen and the Horn of Africa. Therefore, option C is geographically precise.

Bhagirathi is the correct answer because it emerges from the Gangotri Glacier region, specifically near Gaumukh, and is traditionally regarded as the principal source stream of the Ganga. At Devprayag, Bhagirathi joins the Alaknanda; from that confluence onward, the combined river is called the Ganga. Alaknanda is also a major Himalayan headstream and carries substantial water, but the Gangotri Glacier clue specifically points to Bhagirathi. Mandakini and Pindar are important Himalayan tributaries within the Alaknanda system, yet neither is identified as the main stream rising from Gangotri. Hence option B is unambiguous.

At Devprayag, the Alaknanda and Bhagirathi meet, and the river downstream of this confluence is known as the Ganga. This is a key fact in the geography of the Himalayan river system and in the traditional sequence of the Panch Prayag confluences. Although both rivers have separate upper courses and tributaries, their meeting at Devprayag gives the combined stream the name Ganga. Yamuna and Tons are associated with the Yamuna system, while Son, Gandak, Ghaghara, and Kosi join the Ganga farther downstream in the plains. Since none of those pairs forms the named Devprayag confluence, option A is the only correct choice.

Ghaghara is the correct answer. It rises in the high Himalayan region of Tibet and Nepal, enters the Indian plains through Nepal, and becomes a major northern tributary of the Ganga. It is one of the substantial and long rivers in the Ganga basin, carrying water from the Himalayan foothills toward the plains. Sabarmati and Mahi are west-flowing rivers associated with western India and the Arabian Sea, while Periyar is a major river of Kerala in southern India. None of these alternatives enters India from the Nepal Himalayas as a major tributary of the Ganga. Therefore, the Himalayan origin and Ganga-basin clues identify option A.

The correct answer is Kosi, or Koshi, because this Himalayan river has historically shifted its channel repeatedly across the plains of northern Bihar. Its heavy monsoon discharge, large sediment load and relatively unstable alluvial course have often produced destructive floods and changes in the river’s path. This is why it is popularly called the “Sorrow of Bihar.” The other choices are not suitable: Mandovi, Netravati and Sharavathi are mainly associated with the western coastal region of India and do not have the same well-known historical association with Bihar’s shifting channels and floods.

The correct answer is the Chambal. It is regarded as the largest and one of the most important tributaries of the Yamuna, joining the Yamuna near the Uttar Pradesh–Madhya Pradesh region. Through the Yamuna, its waters ultimately become part of the Ganga river system. The Chambal is also noted for its deep ravines, which were formed by erosion in the soft alluvial landscape of the Chambal basin. Hooghly is a distributary of the Ganga, while Tapi is a west-flowing peninsular river that drains into the Arabian Sea. Krishna is a major independent peninsular river, not a tributary of the Yamuna.