Rivers and Lakes of India

Pushkar Lake is associated with the Ajmer region of Rajasthan. For exams remember Pushkar as a religious lake.

Dal Lake is a famous lake of Srinagar where shikara boats are popular. For exams remember Dal Lake and Srinagar together.

The direct answer is D, Phumdi. Loktak Lake is in Manipur and is famous for floating masses of vegetation, soil, and organic matter. These floating formations are called phumdis. Some phumdis support plants, animals, and even human activity, and Keibul Lamjao National Park is located on such floating habitat. Option D is correct because it is the special geographical term for Loktak’s floating islands. Option A, backwaters, means connected shallow water bodies, especially associated with Kerala; it is not the name of Loktak’s floating islands. Option B, barchans, are crescent-shaped sand dunes formed by wind. Option C, duns, are longitudinal valleys, especially between Himalayan ranges. Memory cue: Loktak–Manipur–Phumdi.

The direct answer is A: Chilika Lake is famous for brackish water. Brackish water has more salt than freshwater but less salt than seawater. Chilika is a large coastal lagoon in Odisha, connected with the Bay of Bengal, so the mixing of seawater and freshwater produces this condition. Reasoning: it is a lagoon; a lagoon receives marine influence; rivers and rainfall also add freshwater; mixing creates brackish water. Option A is correct. Option B is wrong because Chilika is not filled with pure glacial water. Option C is wrong because it is not a freshwater mountain lake. Option D is wrong because volcanic water is not the characteristic basis of Chilika. Its salinity can vary with season and connection to the sea, but its general classification remains brackish. Memory cue: Chilika—Odisha—coastal lagoon—brackish water.

Sambhar Lake is a salt water lake of Rajasthan and is linked with salt production. For exams remember Sambhar and salt.

Vembanad Lake is linked with Kerala's backwater region. For exams remember Vembanad as a major lake of Kerala.

Pulicat Lake is linked with the eastern coastal area of Andhra Pradesh and Tamil Nadu. For exams remember it as an eastern coast lake.

Wular Lake in Jammu and Kashmir is associated with the Jhelum River area. For exams remember Wular and Jhelum together.

Kolleru Lake in Andhra Pradesh lies between the Godavari and Krishna delta regions. For exams remember this pair.

Lonar Lake in Maharashtra is famous as a crater lake. For exams link Lonar with meteoritic impact.

Pangong Tso is a high-altitude lake in the Himalayan region of Ladakh. It lies at about 4,350 metres above sea level and extends into the India–China border region. A desert salt plain is not a lake, while coastal and urban lakes do not match its location. Exam tip: Remember Pangong Tso as a high-altitude saline lake of Ladakh.

Chandratal is commonly linked with the meaning moon lake. For exams remember Chandratal as a high altitude lake of Himachal Pradesh.

Nainital and Bhimtal are lakes associated with the Kumaon region of Uttarakhand. For exams remember the Kumaon lake region.

The direct answer is C, Uttarakhand. Roopkund is a high-altitude lake in the Himalayan region of Uttarakhand, near the Trishul massif. It is sometimes called the Skeleton Lake because human remains were found near it, but the location is the key fact here. Option C is correct because Roopkund belongs to Uttarakhand’s mountain geography. Option A, Rajasthan, is largely arid and is associated with lakes such as Sambhar, not this Himalayan lake. Option B, Kerala, has lowland and coastal water bodies, not Roopkund. Option D, Telangana, is associated with Hussain Sagar, not this high mountain lake. Reasoning: Roopkund → Himalaya → Uttarakhand. Remember that a high-altitude lake need not be in a desert or coastal state.

The direct answer is D, Chandigarh. Sukhna Lake is a famous man-made reservoir and urban recreational lake in Chandigarh. It is located near the Shivalik foothills and is closely associated with the planned city. Option A, Bhubaneswar, is in Odisha and is not the location of Sukhna Lake. Option B, Ahmedabad, is in Gujarat and is known for other water bodies, but not this lake. Option C, Jaipur, is in Rajasthan and is also not associated with Sukhna Lake. Option D is correct because Chandigarh is the planned city beside which Sukhna Lake was created and developed as an important public lake. The reasoning is: Sukhna Lake → Chandigarh → planned urban landscape near the Shivaliks. It is useful to distinguish this from natural Himalayan lakes such as Nainital. Memory cue: Sukhna is Chandigarh’s signature urban lake.

Ukai Dam is built across the Tapi River in Gujarat. It is used for irrigation, hydroelectric power generation, and flood control. Option B is related but incorrect because the Sardar Sarovar Dam is on the Narmada River. Exam tip: remember the sequence Ukai–Tapi–Gujarat.

Mettur Dam is built across the Kaveri River in Tamil Nadu. It is important for water storage, irrigation, and hydropower. The Narmada is associated with the Sardar Sarovar Dam, so that option is incorrect. Exam tip: remember Mettur Dam with the Kaveri River and Tamil Nadu.

The direct answer is C, Periyar. Mullaperiyar Dam is built across the Periyar River in Kerala’s highland region. The name itself provides a strong clue: Mullaperiyar combines the name of the Mullayar and Periyar rivers, and the dam is commonly identified with the Periyar River. Option A, Ganga, is incorrect because the dam is not on the Ganga system. Option B, Tapi, is incorrect because the Tapi flows through central and western India and is unrelated to Mullaperiyar Dam. Option C is correct because the dam is on the Periyar River. Option D, Sabarmati, is incorrect because that river is associated mainly with Gujarat and is not the river crossed by this dam. The reasoning is: Mullaperiyar Dam → Periyar River → Kerala region. Memory cue: the word “Periyar” appears directly in the dam’s name, but always use the river fact rather than relying only on the name.

Rihand Dam is built on the Rihand River, so option D is correct. The Rihand is an important river of the Son river system and flows mainly through the region of present-day Uttar Pradesh. The dam is also known as Govind Ballabh Pant Sagar, a major reservoir associated with this river. The names of the river and dam are closely connected, which makes the answer easier to remember.

The other options do not fit this question. Yamuna, Krishna, and Godavari are major rivers, but Rihand Dam is not built on any of them. A useful examination link is: Rihand River, Son river system, and Uttar Pradesh. Therefore, the supplied answer D follows directly from the location and river association.

Son River rises near the Amarkantak region and joins the Ganga system. For exams remember Son as a tributary of Ganga.

Son is considered a major right bank tributary of the Ganga. For exams remember right and left bank tributaries separately.

Banas River is a major river of Rajasthan. For exams remember Banas as a river of western India.

The Bhagirathi and Alaknanda rivers meet at Devprayag in Uttarakhand. After this confluence, the combined river is called the Ganga. Rishikesh and Haridwar lie further downstream on the Ganga, so they are not the confluence site. Exam tip: The river is known as the Ganga from Devprayag.

The Alaknanda is one of the important headstreams associated with the Ganga river system. It rises in the Himalayan region and flows through the mountains before joining the Bhagirathi at Devprayag. From this confluence onward, the combined river is known as the Ganga. This makes Alaknanda an important part of the upper course and origin story of the Ganga, rather than an independent major system in the list given.

Option A, the Ganga River System, is therefore correct. The Indus system is associated with rivers such as the Jhelum, Chenab, Ravi, Beas, and Sutlej, while Krishna belongs to peninsular India and Luni drains toward the arid region of Rajasthan. Remembering Alaknanda and Bhagirathi as the two important streams meeting at Devprayag helps distinguish the Ganga system from the other choices.

Tehri Dam is located on the Bhagirathi river in Uttarakhand. Dam and river pairs are important for exams.