---
title: "Ganga River System: UPSC Drainage Notes | Model Diplomat"
description: "The Ganga River System is India's largest drainage network, crucial for its vast ecosystem and vital for UPSC candidates studying geography."
url: "https://modeldiplomat.com/learn/glossary/ganga-river-system"
---

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Model Diplomat Research Team · Last reviewed June 22, 2026

TL;DR

- The Ganga River System is the largest drainage network in India, comprising the Ganga and its Himalayan and peninsular tributaries draining roughly 861,000 square kilometres.
- What is the difference between left-bank and right-bank tributaries of the Ganga?
- Where does the Ganga originate and where does it acquire its name?
- Which is the largest tributary of the Ganga?
- How is the Ganga basin governed legally and internationally?

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

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In 2014 India's Ministry of Water Resources launched the Namami Gange Programme with a ₹20,000 crore outlay to clean and rejuvenate the Ganga River System, channelling work through the National Mission for Clean Ganga.

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