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easyQ. No. 14329-which-is-the-only-indian-river-that-flows-through-the-thar-desert

Which is the only Indian river that flows through the Thar Desert?

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This question examines an important river-or-lake fact: “Which is the only Indian river that flows through the Thar Desert?” The correct answer is Luni. The Luni River is the only significant river that flows through the Thar Desert in Rajasthan. It flows from the Aravalli Hills near Ajmer through the desert landscape before draining into the Rann of Kutch in Gujarat. The Ghaggar also flows through the desert but disappears rather than flowing through it completely. A river system includes its source, tributaries, distributaries, drainage basin, watershed, channel, floodplain, delta or estuary and final outlet. River behaviour depends on relief, geology, rainfall, snowmelt, sediment load, vegetation and human intervention.

AGhaggar
BBanas
CLuni
DRupen
Correct Answer: LuniYour Answer: C

Explanation

Correct Answer: Option C — Luni The Luni is the principal river of the Indian Thar Desert. It rises near Pushkar in the Aravalli region of Rajasthan, flows southwest through the arid districts of western Rajasthan and ends in the marshy Rann of Kutch. - Option A — Ghaggar: The Ghaggar is a seasonal river of northwestern India that loses itself in the plains and desert sands farther north. - Option B — Banas: The Banas flows through southeastern Rajasthan and joins the Chambal River. - Option D — Rupen: The Rupen is a seasonal river of Gujarat that drains toward the Little Rann of Kutch, not the main river crossing the Thar Desert. Exam Takeaway: Luni is Rajasthan’s major inland-drainage river of the Thar Desert.

Important Notes

  • The Luni rises near Pushkar in the Aravalli Range and initially flows under the name Sagarmati. It passes through the arid districts of western Rajasthan toward Gujarat.
  • Luni is an inland-drainage river because it does not reach an open sea. It terminates in the marshy Rann of Kutch after flowing through a region of weak and seasonal drainage.
  • The river’s water is relatively fresh near its source but becomes saline downstream. High evaporation, low rainfall and salt-bearing soils contribute to this change.
  • Luni River should not be confused with Banas River. Luni drains the western desert, whereas Banas flows eastward across Rajasthan and joins the Chambal.
  • Ghaggar is a seasonal river farther north, while Rupen drains parts of Gujarat toward the Little Rann. Neither represents the principal river system of the Thar Desert.

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