The Agasthyamala Biosphere Reserve is a vital ecological hotspot located in the Western Ghats of southern India. It serves as a unique genetic reservoir of cultivated and wild plant species, including many rare, endemic, and medicinal plants.

The biosphere reserve spans across Kerala and Tamil Nadu, covering diverse ecosystems from tropical forests to montane grasslands. It includes three wildlife sanctuaries Shendurney (Kerala), Peppara (Kerala) and Neyyar (Kerala), as well as the Kalakad Mundanthurai Tiger Reserve (Tamil Nadu).