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What were the languages of the Naga people?
Nagas have more language diversity than any other ethnic group or states in India. Naga people speak over 89 different languages and dialects, mostly unintelligible with each other.
Do the Naga people have any language in common?
There are many similarities in between different languages spoken by Naga people. Per Grierson's classification system, Naga languages can be grouped into Western, Central and Eastern Naga groups.

Question: Who makes the Western Nasa groups?
Self-contained rewrite: Who makes up the Western Naga language groups?