Rivers and Lakes of India

The correct answer is Mandovi. Dudhsagar Falls is a major waterfall in Goa, located in the Western Ghats along the Mandovi River system. The falls are especially impressive during the monsoon, when heavy rainfall increases discharge over the steep rocky escarpment. This connection is useful in Indian geography: Goa, the Western Ghats, monsoon-fed waterfalls, and the Mandovi basin form a coherent regional association. Son is a tributary of the Ganga in central and eastern India, Gandak is a Himalayan tributary of the Ganga, and Betwa is a peninsular tributary of the Yamuna. None of these rivers is the standard geographical association for Dudhsagar Falls.

The correct answer is Naini Lake. It is a well-known freshwater lake situated in Nainital, Uttarakhand, in the Kumaon Himalaya. The lake occupies a mountain valley and is central to the town’s identity, tourism, boating, and scenic character. Nainital itself is often described as a lake town because the lake is closely integrated with its settlement and surrounding hills. Sambhar is India’s famous inland salt lake in Rajasthan, while Chilika is a large brackish lagoon on the Odisha coast and Pulicat is a coastal lagoon on the Andhra Pradesh–Tamil Nadu border. Their different environments make Naini Lake the only suitable Himalayan mountain-lake answer.

The correct answer is Dhasan. The Dhasan is an important river of the Bundelkhand region and is commonly studied with the Betwa and Ken rivers in the drainage geography of central India. Dhasan is also associated with the Betwa system, which ultimately forms part of the Yamuna–Ganga drainage network. Bundelkhand’s rivers are strongly influenced by the hard, uneven peninsular terrain and seasonal monsoon rainfall, so their discharge varies through the year. Tapi is a west-flowing river of central India, Periyar is a major river of Kerala, and Teesta is a Himalayan river of Sikkim and North Bengal. Their regional settings do not match the Bundelkhand clue.

The correct answer is Teesta. The Teesta rises in the eastern Himalayas, drains Sikkim and North Bengal, and continues into Bangladesh, where it joins the Brahmaputra system. Its steep mountain course, tributary valleys, and strong monsoon variation are important features of Himalayan drainage. The river is therefore a useful geographical link between Sikkim, North Bengal, and the Brahmaputra basin. Pennar is a peninsular river flowing through parts of southern India toward the Bay of Bengal, Sabarmati flows through Rajasthan and Gujarat toward the Gulf of Khambhat, and Periyar is a west-flowing river of Kerala. These alternatives do not fit the Himalayan and Brahmaputra clues.

The governing concept is the source and seasonal reliability of Himalayan river systems. High Himalayan glaciers and seasonal snowfall provide meltwater, while rainfall also feeds the rivers and their tributaries. Because these sources operate across different seasons, major rivers such as the Ganga, Yamuna, and Brahmaputra generally maintain flow for much of the year; hence option A is correct. The Himalaya does not stop all rivers, because many rivers originate there and pass through valleys. Its streams are not merely sandy, and the range contains abundant snow, ice, springs, and rainfall rather than having no water sources.

The correct answer is that these rivers cut across the Eastern Ghats. Mahanadi, Godavari, Krishna, and Cauvery generally flow eastward across peninsular India and drain into the Bay of Bengal. On their way to the coast, their valleys and erosional channels interrupt the continuity of the Eastern Ghats. Consequently, the range appears as separate hill sections rather than as one unbroken wall. This is the meaning of a discontinuous range in physical geography. The rivers do not cover the Western Ghats, create Himalayan glaciers, or directly form coral islands. Those alternatives describe unrelated geographical processes. Therefore, river incision and valley formation explain the broken character of the Eastern Ghats.

The governing concept is drainage direction determined by relief or slope. Much of the Deccan Plateau has a general eastward inclination, so its major east-flowing rivers move across the plateau toward the Bay of Bengal. Godavari, Krishna, and Cauvery are prominent examples and form broad drainage systems before entering the bay, often through deltas or estuaries. Therefore option A correctly connects the eastward slope with the observed river pattern. The statement does not mean every peninsular river flows east: Narmada and Tapi are important west-flowing exceptions. Still, options B, C, and D are plainly incorrect because rivers do not generally flow toward the Himalayas, all terminate in lakes, or enter the Aravalli range.

Option C is correct. The Eastern Ghats are not a continuous wall because several major rivers flowing generally eastward cut across them on their way to the Bay of Bengal. The Mahanadi, Godavari, Krishna, and Kaveri have carved valleys and gaps through different sections of the range, interrupting its continuity. The Indus and Jhelum belong mainly to the northwestern river system and do not explain the Eastern Ghats. Narmada and Tapi flow westward and do not cover this range, while the Ganga and Yamuna are northern rivers with no such meeting pattern in the Eastern Ghats. The river evidence therefore supports C.

The governing concept is a watershed, or a highland that separates the drainage basins of different rivers. Amarkantak, in the Maikal region of central India, is an important source area. The Narmada rises near Amarkantak and flows westward, while the Son begins in the nearby highlands and ultimately joins the Ganga system toward the east. Because water from the surrounding elevated land drains into different river systems, the area is described as a watershed region. Therefore, option A is correct. A Ganga delta is a depositional coastal landform, Luni is associated with Rajasthan’s inland drainage, and marine coral has no connection with this river-source relationship.

The Godavari is known as the “Ganga of South India” or “Dakshin Ganga.” It is one of the major and longest rivers of peninsular India and has great religious and cultural importance. The Krishna and Kaveri are also important South Indian rivers, but this title is associated with the Godavari. Exam tip: Remember “Dakshin Ganga” as Godavari.