The 'Nilgiri Biosphere Reserve', India's first UNESCO-designated biosphere reserve (1986), spans three states: Tamil Nadu, Kerala, and Karnataka.
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Answer: True
Nilgiri Biosphere Reserve (1986) was India's first UNESCO MAB site. It encompasses diverse ecosystems: tropical forests, grasslands, and sholas. Home to tribal communities like Toda, Kota, and Kurumba, it exemplifies eco-cultural conservation.