---
title: "Sundarbans National Park: UPSC Notes | Model Diplomat"
description: "Sundarbans National Park in West Bengal is a UNESCO site, tiger reserve and biosphere reserve in the world's largest mangrove delta. Key UPSC GS3 facts inside."
url: "https://modeldiplomat.com/learn/glossary/sundarbans-national-park"
---

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Model Diplomat Research Team · Last reviewed June 22, 2026

TL;DR

- Sundarbans National Park is a tiger reserve, biosphere reserve, and UNESCO World Heritage Site in West Bengal protecting the Indian portion of the world's largest contiguous mangrove forest.
- Why does the Sundarbans hold multiple overlapping conservation designations?
- When was Sundarbans National Park established and inscribed as a World Heritage Site?
- What distinguishes the Sundarbans tiger population from other Indian reserves?
- What are the principal threats to the Sundarbans ecosystem?

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

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## Timeline

1. 4 May 1984

   The core area of that reserve was declared Sundarbans National Park on under the Wildlife (Protection) Act, 1972.

2. 30 January 2019

   The wider region was designated the Sundarban Biosphere Reserve in 1989 under the Man and the Biosphere Programme, and a 4,260-square-kilometre tract was rec…

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In January 2019, the Government of India designated 4,260 square kilometres of the Sundarbans as the country's largest Ramsar wetland, adding to the area's existing 1987 UNESCO World Heritage and tiger reserve status.

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