---
title: "Sundarbans Delta: India-Bangladesh Mangrove | Model Diplomat"
description: "The Sundarbans Delta, the world's largest mangrove forest, is vital for biodiversity and is a key topic for UPSC GS1 geography studies."
url: "https://modeldiplomat.com/learn/glossary/sundarbans-delta"
---

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Model Diplomat Research Team · Last reviewed June 22, 2026

TL;DR

- The Sundarbans Delta is the world's largest mangrove forest, formed by the Ganga-Brahmaputra-Meghna river system at the Bay of Bengal across India and Bangladesh.
- Why is the Sundarbans classified as an active delta rather than a moribund one?
- How is the Sundarbans Delta governed across the India-Bangladesh boundary?
- What international conservation designations does the Sundarbans hold?
- How has the Farakka Barrage affected the Sundarbans?

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

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In May 2020, Cyclone Amphan made landfall across the Sundarbans Delta, where the mangroves absorbed much of the storm surge before it reached Kolkata, even as the West Bengal Forest Department reported extensive damage to embankments and habitat.

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