---
title: "Luni River: Rajasthan's Inland Desert River | Model Diplomat"
description: "The Luni is the Thar Desert's largest river, rising near Ajmer and ending in the Rann of Kachchh without reaching the sea. Key UPSC GS1 inland-drainage facts."
url: "https://modeldiplomat.com/learn/glossary/luni-river"
---

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Model Diplomat Research Team · Last reviewed June 22, 2026

TL;DR

- The Luni is the largest river of the Thar Desert, rising near Ajmer in Rajasthan and draining into the Rann of Kachchh, with no outlet to the sea.
- Why does the Luni River not reach the sea?
- Where does the Luni River originate and what is its upper-course name?
- Why is the Luni's water saline, and where does this begin?
- What is the Luni's largest tributary and how is it managed?

[Civil Service & Diplomatic Exams](https://modeldiplomat.com/learn/civil-services/glossary)Updated June 22, 2026

The Luni is the largest river of the Thar Desert, rising near Ajmer in Rajasthan and draining into the Rann of Kachchh, with no outlet to the sea.

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In August 2006, exceptional monsoon rainfall caused the Luni River and its tributaries to flood Barmer district in Rajasthan severely, displacing thousands and prompting a major state disaster-relief response.

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