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Biosphere reserves in India

Biosphere Reserves in India | SMD Classes

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Biosphere Reserves in India

Content by Shyam Mohan Dubey

What is a Biosphere Reserve?

A Biosphere Reserve is a large area of terrestrial, coastal or marine ecosystems designated to conserve biodiversity while supporting sustainable development and the well-being of local communities. It protects plants, animals, ecosystems and the traditional knowledge and livelihoods of people living in the region.

18Notified Biosphere Reserves in India
13Included in UNESCO World Network (WNBR)
1986Year of India's first reserve – Nilgiri
91,425Approx. total area (sq. km)
Exam update: Cold Desert (Himachal Pradesh) joined UNESCO’s World Network in September 2025. India now has 13 internationally recognised Biosphere Reserves.

Man and the Biosphere (MAB) Programme

  • Launched by UNESCO in 1971 as an intergovernmental scientific programme.
  • Its objective is to improve the relationship between people and their environment through science, conservation and sustainable development.
  • The World Network of Biosphere Reserves (WNBR) connects internationally recognised sites.

India's National Programme

India's National Biosphere Reserve Programme was initiated in 1986. The Ministry of Environment, Forest and Climate Change (MoEFCC) administers the relevant biodiversity conservation scheme; State Forest Departments implement activities and state governments prepare management action plans.

Three Zones of a Biosphere Reserve

1. Core Zone / मुख्य क्षेत्र

The most protected zone. It conserves ecosystems, species and genetic resources. Human interference is kept to a minimum; only permitted activities such as monitoring and non-destructive research are undertaken.

2. Buffer Zone / मध्यवर्ती क्षेत्र

Surrounds or adjoins the core zone. Research, education, restoration and regulated, low-impact activities such as eco-tourism may be allowed.

3. Transition Zone / संक्रमण क्षेत्र

The outermost zone and an area of cooperation. Settlements, agriculture, managed forests and sustainable economic activities take place here.

Functions of Biosphere Reserves

Conservation / संरक्षण

Conservation of landscapes, ecosystems, species, genetic diversity and traditional culture.

Development / विकास

Promoting sustainable economic and human development that is socially, culturally and ecologically appropriate.

Logistic Support / सहायक कार्य

Supporting research, monitoring, environmental education, training and exchange of knowledge.

All 18 Biosphere Reserves in India

Year refers to national designation. Area figures are approximate and follow the Government of India's published list.

#NameYearState(s) / केंद्र-राज्यArea (sq. km)UNESCO WNBR
1Nilgiri1986Tamil Nadu, Kerala, Karnataka5,5202000
2Nanda Devi1988Uttarakhand6,4072004
3Nokrek1988Meghalaya8202009
4Gulf of Mannar1989Tamil Nadu10,5002001
5Sundarbans1989West Bengal9,6302001
6Manas1989Assam2,837—
7Great Nicobar1989Andaman and Nicobar Islands8852013
8Similipal1994Odisha5,5692009
9Dibru-Saikhowa1997Assam765—
10Dehang-Dibang1998Arunachal Pradesh5,111.5—
11Pachmarhi1999Madhya Pradesh4,9822009
12Khangchendzonga2000Sikkim2,9312018
13Agasthyamalai2001Kerala, Tamil Nadu3,5002016
14Achanakmar-Amarkantak2005Madhya Pradesh, Chhattisgarh3,8352012
15Great Rann of Kutch2008Gujarat12,454—
16Cold Desert2009Himachal Pradesh7,7702025
17Seshachalam2010Andhra Pradesh4,755.58—
18Panna2011Madhya Pradesh2,998.982020

13 Indian Biosphere Reserves in UNESCO's World Network

The following reserves are included in the World Network of Biosphere Reserves (WNBR). The year shown is the year of inclusion.

Nilgiri — 2000
Gulf of Mannar — 2001
Sundarbans — 2001
Nanda Devi — 2004
Nokrek — 2009
Pachmarhi — 2009
Similipal — 2009
Achanakmar-Amarkantak — 2012
Great Nicobar — 2013
Agasthyamalai — 2016
Khangchendzonga — 2018
Panna — 2020
Cold Desert — 2025
Remember: A nationally notified Biosphere Reserve is not automatically part of UNESCO's WNBR. National designation and UNESCO inclusion are two separate steps.

Important Facts for Competitive Exams

  • First Biosphere Reserve in India: Nilgiri (1986).
  • Largest by area: Great Rann of Kutch, Gujarat (about 12,454 sq. km).
  • Smallest by area in the Government table: Dibru-Saikhowa, Assam (about 765 sq. km).
  • Only marine Biosphere Reserve: Gulf of Mannar, Tamil Nadu.
  • Latest UNESCO inclusion: Cold Desert, Himachal Pradesh (2025).
  • States with three reserves each: Madhya Pradesh and Tamil Nadu (including shared reserves).
  • Great Nicobar: Shompen and Nicobarese communities; saltwater crocodile and Nicobar megapode.
  • Nokrek: Garo Hills, Meghalaya; known for the red panda and Hoolock gibbon.
  • Sundarbans: Mangrove ecosystem; Royal Bengal Tiger.
  • Gulf of Mannar: Dugong (sea cow), coral reefs and marine biodiversity.
  • Cold Desert: Himachal Pradesh; snow leopard and high-altitude cold desert ecosystem.
  • Seshachalam: Andhra Pradesh; red sanders (red sandalwood) and slender loris.
  • Panna: Madhya Pradesh; Ken River, tiger and diamond-bearing region.
  • Achanakmar-Amarkantak: Madhya Pradesh and Chhattisgarh; Narmada originates in the Amarkantak region.

Biosphere Reserve, National Park and Wildlife Sanctuary

BasisBiosphere ReserveNational ParkWildlife Sanctuary
Primary aimBiodiversity conservation with sustainable developmentProtection of wildlife and ecosystemsProtection of wildlife, especially fauna
AreaGenerally large; may include parks and sanctuariesDefined protected areaDefined protected area
Human activityVaries by core, buffer and transition zonesHighly restricted, subject to lawRegulated; certain rights/activities may be permitted under law
RecognitionNational designation; selected sites may join UNESCO WNBRDeclared under Wildlife (Protection) Act, 1972Declared under Wildlife (Protection) Act, 1972

Quick Revision Questions

1. India's first Biosphere Reserve is:

a) Nanda Devi   b) Nilgiri   c) Nokrek   d) Sundarbans

Show AnswerAnswer: b) Nilgiri (1986)
2. Which zone is the outermost zone?

a) Core   b) Buffer   c) Transition   d) None

Show AnswerAnswer: c) Transition Zone
3. The Gulf of Mannar Biosphere Reserve is in:

a) Gujarat   b) Tamil Nadu   c) Kerala   d) Odisha

Show AnswerAnswer: b) Tamil Nadu
4. Cold Desert Biosphere Reserve is located in:

a) Ladakh   b) Uttarakhand   c) Himachal Pradesh   d) Sikkim

Show AnswerAnswer: c) Himachal Pradesh
5. UNESCO's Man and the Biosphere Programme was launched in:

a) 1965   b) 1971   c) 1986   d) 1992

Show AnswerAnswer: b) 1971
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Content by Shyam Mohan Dubey
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