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Indus River System: Source, Course, List of Tributaries & UPSC Notes
IMPORTANT LINKS
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Syllabus |
General Studies Paper I (Prelims) General Studies Paper II (Mains) |
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Topics for Prelims |
Indus River System, Tributaries of Indus River, River System Of India, River System of the World. |
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Topics for Mains |
Indus Water Treaty and associated implemented issue. |
About the Indus River System
The Indus River System is one of the most essential rivers in the Indian subcontinent. The Indus River System originates in Tibet and flows through India and Pakistan before draining into the Arabian Sea. It contains six main rivers: Indus, Jhelum, Chenab, Ravi, Beas, and Sutlej.
These multiple rivers of the Indus River System are essential for drinking water, agriculture, and hydroelectric power, particularly in Pakistan, where the Indus is the spine of the economy. The 1960 Indus Waters Treaty, brokered by the World Bank, governs the sharing of these waters between India and Pakistan. The treaty has remained intact despite political tensions, stabilizing their otherwise hostile relations.
- The Indus River system is one of the three major river basins, including the Himalayan drainage system.
- The Indus River System and its multiple tributaries flow through the western part of the Indian subcontinent, cutting deep gorges and supporting diverse ecosystems.
- With a total length of over 3,000 kilometers, the Indus is the longest river in Pakistan and one of the longest in Asia.
Origin of the Indus River System
- The Indus River arises from a glacier near Bokhar Chu in the Tibetan region in the Kailash Mountain range near the Mansarovar Lake.
- The river streams northwest and joins the Ladakh region of India at a place called Demchok.
- Once in India, the Indus River flows between the Karakoram and Ladakh ranges.
- In Tibet, it is known as 'Singi Khamban,' or the Lion's Mouth.
The course of the Indus River System
- The Zaskar River enters the Indus River at Leh and the Shyok River.
- Just above Mithankot, the Indus River welcomes the combined waters of the five eastern tributaries. These tributaries are the Jhelum, Chenab, Ravi, Beas, and Satluj—from the Panchnad.
- The river collects significant sediment in the Sindh Province, forming the Indus River delta before draining into the Arabian Sea near Karachi.
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Tributaries of Indus River System
The Indus River has several significant tributaries that contribute significantly to its volume and the overall Indus River System. The major tributaries on the left bank include the Jhelum, Chenab, Ravi, Beas, and Sutlej rivers, originating mainly in India and flowing westward into Pakistan. These rivers are collectively known as the Eastern and Western Rivers under the Indus Waters Treaty. On the right bank, essential tributaries include the Kabul, Swat, Kurram, and Gomal rivers, mainly in Afghanistan and Pakistan. These tributaries support agriculture, irrigation, and hydroelectric projects across both countries, making them essential for water management and provincial stability in the Indus basin.
Left-bank Tributaries
The Left Bank Tributaries of the Indus River are as follows:
- Zaskar River,
- Suru River,
- Soan River,
- Jhelum River,
- Chenab River,
- Ravi River,
- Beas River,
- Satluj River, and
- Panjnad River.
Zanskar River
- The Zanskar River is one of the essential left-bank tributaries of the Indus.
- Human settlements are sparse here.
Chenab River
- The Chenab River originates near the Bara Lacha Pass in the Lahul-Spiti region of the Zaskar Range.
- The confluence of the Chandra and Bhaga rivers at Tandi in the upper Himalayas of the Lahul and Spiti District in Himachal Pradesh forms it.
- It is also called the Chandrabhaga in its upper reaches.
- It flows through the Jammu region of Jammu & Kashmir to the plains of Punjab in Pakistan.
Jhelum River
- The Jhelum River, a tributary of the Chenab River, originates from a spring at Verinag at the foot of the Pir Panjal in the southeastern part of the Kashmir Valley in India.
- The Kishanganga (Neelum) River, its largest tributary, joins it there.
- The Chenab merges with the Sutlej to form the Panjnad River system, which joins the Indus River at Mithankot and ends in a confluence with the Chenab in Pakistan.
Ravi River
- The Ravi River originates from the Dhauladhar Range of the Himalayas in the Chamba district of Himachal Pradesh.
- Ravi has its source in Kullu hills near the Rohtang Pass in Himachal Pradesh.
- The major multipurpose project built on the river is the Ranjit Sagar Dam. Chamba town is situated on the right bank of the river.
Sutlej River
- The Satluj River is the antecedent, sometimes known as the Red River.
- It rises from beyond the Indian borders on the southern slopes of the Kailash Mountain near Mansarover Lake from Rakas Lake.
- In Tibet, it is known as Langchen Khambab.
- It enters Himachal Pradesh at Shipki La and flows in the Southwest through the Kinnaur, Shimla, Kullu, Solan, Mandi, and Bilaspur districts.
- It leaves Himachal Pradesh to enter the plains of Punjab at Bhakra, where the world's highest gravity dam- Bhakra Nangal Dam, has been constructed on this river.
- It is mainly used for power generation, and many large canals draw water from it.
- Across the river, many hydroelectric and irrigation projects, such as the Kol Dam and Nathpa Jhakri project, exist.
Beas River
- The Beas River is an important river of the Indus River System, which emerges from Rohtang Pass in Himachal Pradesh.
- Before entering Pakistan, the river merged with the Sutlej River at Hari-Ke-Pattan in Punjab.
- The city of Manali is situated on the right bank of the River Beas.
Right-bank Tributaries
The Right Bank Tributaries of the Indus River are as follows:
- Shyok River,
- Gilgit River,
- Hunza River,
- Swat River,
- Kunnar River,
- Kurram River,
- Gomal River,
- Tochi River and
- Kabul River.
Shyok River
- The Shyok River rises from the Karakoram Range and flows through the Northern Ladakh region.
- It originates from the Rimo Glacier, and the river widens at the confluence with the Nubra River.
- It marks the southeastern fringe of the Karakoram ranges by forming a V-shaped bend around it.
Nubra River
- The Nubra River is the main tributary of the Shyok River.
- It originates from the Nubra Glacier, and the river meanders towards the southeast to join the Shyok River downstream of Shyok Valley at the base of the Ladakh range.
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Indus Water Treaty 1960
The Indus Waters Treaty of 1960 is a water-sharing agreement signed between India and Pakistan. The treaty allows India limited use of western rivers for irrigation, transport, and hydroelectric projects without altering the flow. Despite numerous wars and tensions between the two nations, the treaty has survived and continues to function effectively. It is considered one of the most successful global water-sharing agreements promoting cooperation and preventing conflict over shared water resources in the region.
- The Indus Water Treaty of 1960 is a milestone agreement between India and Pakistan, brokered by the World Bank, to address the shared water resources of the Indus River system.
- The treaty allotted India's three eastern rivers (Ravi, Beas, and Sutlej) while granting Pakistan authority over the three western rivers (Indus, Jhelum, and Chenab).
- This deal has been praised as one of the most booming water-sharing agreements in the world, delivering a framework for collaboration and dispute solutions between the two countries despite their broader geopolitical pressures.
- It permits India-specific non-consumptive uses and hydropower projects on the western rivers while securing downstream flow to Pakistan, negating both nations' water requirements and rights.
Conclusion
The Indus River system sustains vast ecosystems that support millions of livelihoods. It is a testament to the complex biological processes that shape our globe. The journey of the rivers from the icy mountains of the Himalayas to the Arabian Sea is marked by its historical significance, ecological importance, and ongoing challenges due to climate change and geopolitical issues.
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Key Takeaways on the Indus River System for UPSC Aspirants! Origin and Course: The Indus River originates in Tibet near Lake Mansarovar and flows through India and Pakistan, covering approximately 3,180 km before draining into the Arabian Sea. Major Tributaries: Its main tributaries include the Jhelum, Chenab, Ravi, Beas, and Sutlej, collectively known as the Panjnad in Pakistan. Significance in India: In India, the Indus Basin mainly covers the states of Jammu & Kashmir, Himachal Pradesh, and Punjab, which play crucial roles in irrigation and agriculture. Historical Importance: The river was the cradle of the ancient Indus Valley Civilization, one of the world's earliest urban cultures. |
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Subject-wise Prelims Previous Year Questions |
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Indus river system UPSC FAQs
What is another name for the Indus River System?
The Indus River, also known as the Sindhu, is 3180 km long, making it the longest river in the Indian subcontinent and the seventh-longest in Asia.
Is Indus bigger than Ganga?
Two major rivers of the Indian subcontinent – Brahmaputra and Indus – are longer than the Ganges in total length.
Which river is called the river of death?
A tributary of the Indus River, Shyok is called the river of death.
Who discovered the Indus River?
Sir John Marshall, Ernest Mackay, and Harold Hargreaves.
What is the importance of the Indus River system?
The Indus is the most important supplier of water resources to the Punjab and Sindh plains