Biosphere Reserves of Tamil Nadu
Three biosphere reserves touch Tamil Nadu, and one of them is a national first, the kind of superlative TNPSC loves.
Syllabus: GS Unit II (Geography: environment)
| Biosphere Reserve | Year | Signature fact |
|---|---|---|
| Nilgiri Biosphere Reserve | 1986 | India's first biosphere reserve; spans TN, Kerala and Karnataka |
| Gulf of Mannar Biosphere Reserve | 1989 | India's first marine biosphere reserve; 21 islands, coral ecosystem |
| Agasthyamalai Biosphere Reserve | 2001 | Southern Western Ghats; UNESCO listing 2016; Kani tribal habitat |
Frequently asked questions
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Compiled from official Tamil Nadu government sources and standard references. Time-sensitive counts carry an as-of note on the page. Sources: TNPSC official notifications. Figures are indicative and may change with each official notification. Data last reviewed: July 2026.
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