- Sundarbans Tiger Reserve is located in the coastal districts of West Bengal, i.e. South 24- Parganas and part in North 24-Parganas (Arbesi Block only).
- It is situated in the Sundarbans delta, formed by the confluence of the Ganges, Brahmaputra, and Meghna rivers.
- The Sundarbans Tiger Reserve is bound on the east by the international boundary with Bangladesh.
- In 1973, the Sunderban was designated as a Tiger Reserve under Project Tiger.
- In 1977, the Sundarbans Reserve Forest was designated as a wildlife sanctuary.
- In 1984, Sundarbans Wildlife Sanctuary was declared a National Park.
- In 1987, Sundarbans National Park was declared a UNESCO World Heritage Site.
- In 1989, Sunderbans declared as a biosphere reserve by government of India
- In 2001, UNESCO designated the Sunderbans as a UNESCO World Network of Biosphere Reserves.
- In 2019, Sunderban Wetland was recognized as the the Ramsar Site.
- Area: The Sunderbans Tiger Reserve covers an area of approximately 2,585 square kilometers.
- Core/Critical Tiger Habitat: 1699.62 sq km
- Buffer Area: 885.27
- Total Area: 2584.89
- River: The Sundarbans Tiger Reserve is traversed by several rivers, including:
- Ganges River (Hooghly River)
- Matla River
- Bidyadhari River
- Raimangal River
- Harinbhanga River
- Flora: Mangroves (Sundar, Gewa, Goran, Keora etc.), Shrubs (Nypa palm etc.), Non-Halophytic Non-Mangrove Associates (Indian almond, Indian rosewood etc.), Halophytic Herbs, Shrubs, Weeds, and Epiphytes etc.
- Fauna: Tiger, Fishing Cat, Gangetic Dolphin, Irrawady Dolphin, White-bellied Sea Eagle, Brahminy Kite, Estuarine Crocodile, King Cobra, Water Monitor Lizard, Olive Ridley, Green Sea Turtle, Hawksbill Turtle etc.