Question
Identify the river of the Indian sub-continent on the basis of the following information:
1It has an antecedent drainage system.
2It flows through three countries.
3It originates in the Tibetan Plateau and is an important river for irrigation.
4It does not form distributaries.
ABrahmaputra
BIndus
CSutlej
DTeesta
Each Clue Applied to the Sutlej — Full Verification
✓ Clue 1
Antecedent Drainage System
An antecedent river existed before the Himalayas were formed. As the mountains rose due to tectonic uplift, the river maintained its original course by cutting through the rising land — carving deep gorges.
The Sutlej originated in the Tibetan Plateau and maintained its westward course as the Himalayas uplifted around it. It enters India through the Shipki La pass in Kinnaur, Himachal Pradesh — having cut through the Himalayan ranges. Classic antecedent behaviour.
The Sutlej originated in the Tibetan Plateau and maintained its westward course as the Himalayas uplifted around it. It enters India through the Shipki La pass in Kinnaur, Himachal Pradesh — having cut through the Himalayan ranges. Classic antecedent behaviour.
✓ Clue 2
Flows Through Three Countries
The Sutlej flows through exactly three countries:
1. China (Tibet) — originates from Rakshastal Lake in the Tibet Autonomous Region
2. India — enters via Shipki La, flows through Himachal Pradesh and Punjab
3. Pakistan — joins the Chenab River near Uch Sharif in Punjab, Pakistan
Precisely three — not two, not four.
1. China (Tibet) — originates from Rakshastal Lake in the Tibet Autonomous Region
2. India — enters via Shipki La, flows through Himachal Pradesh and Punjab
3. Pakistan — joins the Chenab River near Uch Sharif in Punjab, Pakistan
Precisely three — not two, not four.
✓ Clue 3
Tibetan Plateau Origin + Important for Irrigation
The Sutlej originates from Lake Rakshastal (Langak Tso) near Mount Kailash in western Tibet at ~4,600m above sea level.
Irrigation importance — major projects fed by Sutlej:
• Bhakra-Nangal Dam — one of India’s largest dams
• Indira Gandhi Canal (Rajasthan Canal)
• Nathpa Jhakri Hydroelectric Project
• Waters allocated entirely to India under Indus Waters Treaty 1960
Irrigation importance — major projects fed by Sutlej:
• Bhakra-Nangal Dam — one of India’s largest dams
• Indira Gandhi Canal (Rajasthan Canal)
• Nathpa Jhakri Hydroelectric Project
• Waters allocated entirely to India under Indus Waters Treaty 1960
✓ Clue 4 — The Decisive One
Does NOT Form Distributaries
Why no distributaries? Distributaries form when a river meets the sea and its momentum decreases, causing it to split into multiple channels (delta). The Sutlej never reaches the sea independently.
Instead: Sutlej → joins Chenab → forms Panjnad → joins Indus → reaches Arabian Sea via Indus delta. The Sutlej is a tributary, not a delta-forming river. Since it ends by merging into another river, it never builds a delta and forms no distributaries whatsoever.
Instead: Sutlej → joins Chenab → forms Panjnad → joins Indus → reaches Arabian Sea via Indus delta. The Sutlej is a tributary, not a delta-forming river. Since it ends by merging into another river, it never builds a delta and forms no distributaries whatsoever.
Why the Other Options Fail — Clue-by-Clue Elimination
Brahmaputra
✓Antecedent drainage
✓3 countries (China, India, Bangladesh)
✓Tibetan Plateau origin (Angsi glacier)
✗Forms massive distributaries in Bangladesh delta (Meghna, Jamuna etc.)
Fails Clue 4
Indus
✓Antecedent drainage
✓3+ countries (China, India, Pakistan)
✓Tibetan Plateau origin
✗Forms an extensive delta in Sindh, Pakistan — multiple distributaries into Arabian Sea
Fails Clue 4
✓ Sutlej
✓Antecedent drainage
✓3 countries (China, India, Pakistan)
✓Tibetan Plateau origin (Rakshastal)
✓No distributaries — joins Chenab as tributary, never reaches sea independently
Teesta
✓ Antecedent
✗Only 2 countries (India and Bangladesh) — not 3
✗Originates in Sikkim/Himalayas — not the Tibetan Plateau proper
✗Minor irrigation role vs Sutlej’s massive dams
Fails Clues 2, 3, 4
Sutlej River — Complete Fact Sheet
| Parameter | Detail |
| Ancient name | Shutudri / Shatadru (Rigveda) · Greek: Zaradros / Hesidros |
| Origin | Lake Rakshastal (Langak Tso) near Mount Kailash, western Tibet · ~4,600 m above sea level |
| Entry into India | Shipki La pass, Kinnaur district, Himachal Pradesh |
| Countries | China (Tibet) → India (HP, Punjab) → Pakistan (Punjab) — exactly 3 |
| Drainage type | Antecedent — predates Himalayan uplift; cuts deep gorges through mountain ranges |
| Length | ~1,450 km total · ~320 km in India (HP + Punjab) |
| Major projects | Bhakra-Nangal Dam · Nathpa Jhakri Hydroelectric · Kol Dam · Beas-Sutlej Link · Indira Gandhi Canal |
| Treaty status | Eastern river under Indus Waters Treaty 1960 — allocated entirely to India |
| Terminus | Joins Chenab near Uch Sharif, Pakistan → Panjnad → Indus. Never reaches sea independently. NO distributaries formed. |
| Key clue 4 logic | Distributaries form only when a river reaches the sea and builds a delta. Sutlej ends as a tributary → no delta → no distributaries. This eliminates Indus and Brahmaputra. |
Memory Trick — Solve Any River Identification Question
🧠 Remember It This Way
Clue 4 (no distributaries) is the killer: Among the four options, Brahmaputra and Indus both form major deltas/distributaries. This immediately narrows it to Sutlej or Teesta. Then Clue 2 (3 countries) eliminates Teesta (only India + Bangladesh = 2 countries). Answer confirmed: Sutlej.
Sutlej = Rakshastal Lake: The origin lake is Rakshastal (also called Langak Tso) near Mount Kailash in western Tibet. Remember: Mansarovar (holy lake, Indus origin area) and Rakshastal (demon lake, Sutlej origin) are side by side near Mount Kailash.
Sutlej joins Chenab: Sutlej → Chenab → Panjnad → Indus. It’s the longest tributary of the Indus system. It never reaches the Arabian Sea directly — always merges before that. No independent sea mouth = no delta = no distributaries.
The Bhakra anchor: Bhakra-Nangal Dam on the Sutlej is one of India’s most famous dams. It feeds the Indira Gandhi Canal which irrigates Rajasthan. If you remember Bhakra → Sutlej → irrigation → one of India’s most important rivers for agriculture.
