Possible Clues:

• Main language in India
• Deer with one tongue
• Language we got the words "basmati" and "juggernaut" from
• Back Italy's language
• Language that gives us "pajamas"
• Female crossword setter's language
• Language that gave us 'cheetah' and 'chutney'
• Language in Calcutta
• Origin of the word 'cheetah'
• Language in Kolkata