Drainage system: rivers, dams and lakes of Rajasthan
Key facts
- The Senior Secondary CET syllabus keeps this topic in Rajasthan Geography under rivers, dams and lakes, so the lesson stays focused on Rajasthan drain...
- The Aravalli hill ranges form Rajasthan's main water divide: east and north-east drainage links with the Yamuna-Ganga catchment, while Mahi and Sabarm...
- Banas rises in the Khamnor Hills near Kumbhalgarh in Rajsamand district, flows entirely within Rajasthan, and meets the Chambal near Rameshwar in Sawa...
- The Luni basin lies west of the Aravalli hills; Luni originates near Ajmer and flows towards the Rann of Kutch through western Rajasthan.
- Mahi River Basin covers parts of Banswara, Chittorgarh, Dungarpur, Pratapgarh and Udaipur districts, making it the core river frame for southern Rajas...
Key Points at a Glance
- 1
The Senior Secondary CET syllabus keeps this topic in Rajasthan Geography under rivers, dams and lakes, so the lesson stays focused on Rajasthan drainage rather than India-wide river geography.
- 2
The Aravalli hill ranges form Rajasthan's main water divide: east and north-east drainage links with the Yamuna-Ganga catchment, while Mahi and Sabarmati belong to the south-western drainage picture.
- 3
Banas rises in the Khamnor Hills near Kumbhalgarh in Rajsamand district, flows entirely within Rajasthan, and meets the Chambal near Rameshwar in Sawai Madhopur district.
- 4
The Luni basin lies west of the Aravalli hills; Luni originates near Ajmer and flows towards the Rann of Kutch through western Rajasthan.
- 5
Mahi River Basin covers parts of Banswara, Chittorgarh, Dungarpur, Pratapgarh and Udaipur districts, making it the core river frame for southern Rajasthan.
- 6
For stable CET revision, treat Keoladeo Ghana National Park and Sambhar Lake as Rajasthan's core verified Ramsar-site facts; do not add newer or disputed wetland names unless the latest official list is being checked directly.
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Keoladeo National Park in Bharatpur is a UNESCO World Heritage Site inscribed in 1985 and a major wetland bird-habitat reference for Rajasthan.
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Sambhar Lake was designated as a Ramsar site on 23 March 1990 with an official Ramsar area of 24,000 hectares.
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Jaisamand, also called Dhebar Lake, is linked with a dam on the Gomti River near Udaipur; Rajsamand Lake is linked with Maharana Raj Singh I and the Gomati, Kelwa and Tali river system.
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For CET matching questions, attach each water body to type and district: Sambhar-saline lake, Keoladeo-Bharatpur wetland, Jaisamand-Udaipur artificial lake, Rajsamand-Rajsamand historic lake and Siliserh-Alwar lake.
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Drainage Frame and the Aravalli Divide
Rajasthan drainage is best learnt from the Aravalli divide. The Aravalli hill ranges form the main water divide in the state, so the first exam step is to ask which side of the divide a river belongs to. East and north-east of the divide, rivers commonly connect with the Yamuna-Ganga catchment. South-western Rajasthan has the Mahi and Sabarmati catchments, while much of western Rajasthan has internal drainage where seasonal streams are lost in desert sands or closed basins.
For Senior Secondary CET, keep the frame practical. Chambal, Banas, Kali Sindh, Parbati, Gambhiri, Mej and Banganga help you read the eastern drainage map. Mahi, Sabarmati and West Banas explain the southern and south-western edge. Luni explains the western Aravalli side, while Ghaggar, Kantli, Sabi, Sota-Ruparel and desert basins explain inland drainage. Lakes also follow the same logic: Sambhar, Didwana, Pachpadra and Lunkaransar are linked with saline or closed-basin landscapes.
Core method: identify the drainage direction first, then attach the river, district, dam or lake. This keeps the topic inside the Senior Secondary CET syllabus scope on Rajasthan rivers, dams and lakes.
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