Nilgiri, which literally means "Blue Mountain", may refer to:
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Nilgiri Biosphere Reserve, an International Biosphere Reserve in the Western Ghats and Nilgiri Hills ranges of South India
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Nilgiri mountains, a range of mountains spanning the states of Tamil Nadu and Kerala in Southern India
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Nilgiri Mountain Railway, Tamil Nadu
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The Nilgiris District, a region of the Indian state of Tamil Nadu
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Nilgiri tea, a dark intensely aromatic and flavourful tea grown around the Nilgiris in Tamil Nadu and Kerala in Southern India
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Nilagiri or Nilgiri, a town in Balasore District of the state of Odisha in East India
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Nilgiri (Odisha Vidhan Sabha constituency), Assembly constituency of Odisha, India
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Nilgiris (supermarket), supermarket chain in South India
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Nilgiri Himal, a range of three peaks in the Annapurna region in Nepal
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Nilgiri-class frigate (1972) - class of frigates, served in Indian Navy (1972 – 2013)
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INS Nilgiri (F33) - Lead ship of her class
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Nilgiri-class frigate (2019) - new class frigates are under construction for Indian Navy
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INS Nilgiri (2019) - Lead Ship of Nilgiri-class
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Neelagiri, a town in Tamil Nadu, India
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Neelagiri (film), a 1991 Indian film by I. V. Sasi
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Neelagiri Express, a 1968 Indian film
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Nilgiri, a hill resort in the Bandarban District of Bangladesh
