Guide for building AI applications with Sarvam AI APIs for Indian languages. Use when working with speech-to-text transcription, text-to-speech synthesis, text translation, chat completion, or document intelligence. Covers models saarika:v2.5, saaras:v2.5/v3, bulbul:v3, mayura:v1, sarvam-translate:v1, sarvam-m, and sarvam-vision for 11-23 Indian languages. Trigger when user asks about Indian language AI, STT, TTS, translation, multilingual chatbots, voice assistants, or document processing.