Relevance
GS-3 (Environment & Ecology):
• Biodiversity conservation and sustainable livelihoods under UNESCO’s MAB Programme.
• India’s leadership in forest gain and climate-resilient ecosystem management.
• Integration of conservation with carbon sinks and ecosystem services.

| Zone | Function | Example Activity |
| Core Zone | Strictly protected area for biodiversity conservation. | No human interference; scientific study allowed. |
| Buffer Zone | Limited human activity supporting research, eco-tourism. | Grazing, eco-tourism, education. |
| Transition Zone | Sustainable resource use and human habitation. | Agroforestry, organic farming, local crafts. |
| No. | Name | State | Year of UNESCO Recognition |
| 1 | Nilgiri | TN–Kerala–Karnataka | 2000 |
| 2 | Gulf of Mannar | Tamil Nadu | 2001 |
| 3 | Sundarbans | West Bengal | 2001 |
| 4 | Nanda Devi | Uttarakhand | 2004 |
| 5 | Nokrek | Meghalaya | 2009 |
| 6 | Pachmarhi | Madhya Pradesh | 2009 |
| 7 | Similipal | Odisha | 2009 |
| 8 | Achanakmar–Amarkantak | MP–Chhattisgarh | 2012 |
| 9 | Great Nicobar | Andaman & Nicobar Islands | 2013 |
| 10 | Agasthyamalai | TN–Kerala | 2016 |
| 11 | Khangchendzonga | Sikkim | 2018 |
| 12 | Panna | Madhya Pradesh | 2020 |
| 13 | Cold Desert | Himachal Pradesh | 2025 |
| Programme | Launch | Objective |
| Project Tiger | 1973 | Species & habitat conservation; 55 reserves (2024). |
| Project Elephant | 1992 | Mitigate human-elephant conflict; protect corridors. |
| Integrated Development of Wildlife Habitats (IDWH) | 2008 | Assist states in habitat protection beyond PAs. |
| National Biodiversity Action Plan (NBAP) | 2008 | Implements Biological Diversity Act, 2002. |
| Green India Mission (GIM) | 2014 | Enhance forest cover by 5 million ha; carbon sink creation. |
| Eco-Sensitive Zones (ESZs) | — | Buffer protection around national parks/sanctuaries. |