Why HindiPeople say yes in their own language
A caller who hears their own language relaxes, listens longer and answers more honestly. In large parts of India that language is Hindi, or a mix of Hindi and English that everyone calls Hinglish.
An English-only bot loses those callers in the first ten seconds. A Hindi AI calling agent greets them in Hindi, understands Hinglish replies such as "haan, budget 50 lakh tak hai" and keeps the conversation natural.
When the caller switches to English, or to Marathi or Gujarati, the agent can switch too, as long as that language is set as the script's second language.