Possible Clues:

• Language that gives us "pundit"
• Language that gives us "cheetah" and "chutney"
• Tongue in Tehri
• Language of northern India
• Language producing ''shampoo'' and ''pajamas''
• Language from which 'thug' is derived
• Indian may speak in this party without limits
• New Delhi's language
• Language written in Devanagari
• Female deer has one underneath tongue