2025 · Building

Vani वाणी

Voice AI for Rural Indian Hospitals

Small hospitals in rural India handle hundreds of phone calls a day — appointment inquiries, follow-ups, doctor availability. The staff is overwhelmed. Patients often can't get through. Calls go unanswered.

Vani is an AI-powered voice assistant that answers these calls in Hindi and Marathi. It understands natural speech (patients don't speak in clean sentences), schedules appointments, checks doctor availability, and handles follow-ups — all over a phone call, no app needed.

The pilot is with Shraddha Hospital, Sangli (Dr. G.S. Kulkarni). I analyzed 132 real hospital call recordings to understand conversation patterns — short greetings, code-switching between Hindi/Marathi/English, appointment inquiries (42% of calls), and booking requests (17%).

How It Works

Patient
Phone Call
Telephony
Plivo
Speech → Text
Sarvam AI
Understanding
Groq LLM
Text → Speech
Sarvam AI
Patient
Hears Response
132
Real hospital calls analyzed
8
Tool functions (appointments, doctors, availability)
3
Languages (Hindi, Marathi, English)
Python FastAPI PostgreSQL Groq (Llama 3.3-70B) Sarvam AI Plivo WebSockets Alembic