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Vyapar-Gyan

AI Marketplace with WhatsApp Commerce & Voice-First Shopping

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The problem

India's next billion commerce users don't use web dashboards — they speak eight languages, live inside WhatsApp, and send voice notes, not typed SKUs.

My approach

Voice-first WhatsApp commerce: Gemini transcribes and classifies voice notes, routes intents to 65+ Lambdas across 12 domains, and AWS Polly responds in the customer's dialect.

What I built

Omnichannel commerce for Indian retailers. Customers shop via WhatsApp or web chat in 8 Indian languages using voice notes. Gemini 2.0 transcribes voice, extracts product intents, routes to seller. Features Khata book OCR, Razorpay Route splits, and Bedrock-powered dead-stock detection.

How it works

Full-stack serverless AWS architecture with 65+ Lambda handlers across 12 domains. Voice-first shopping in Hindi/English/Tamil/Telugu/Marathi/Bengali/Gujarati/Kannada. AWS Polly neural TTS for voice responses via WhatsApp. Proactive AI insights with severity scoring.

What I'd do differently

Voice-first isn't a novelty — it collapses a typing funnel that was quietly blocking non-English users entirely.

Good questions to ask

3 questions an interviewer could ask about Vyapar-Gyan

  1. Why did you focus on voice notes instead of typed SKUs for India's next billion commerce users?

    Based on: India's next billion commerce users don't use web dashboards — they speak eight languages, live inside WhatsApp, and send voice notes, not typed SKUs.

  2. How did you design the voice-first approach to address non-English users?

    Based on: Voice-first isn't a novelty — it collapses a typing funnel that was quietly blocking non-English users entirely.

  3. How did you implement AWS Polly in the workflow?

    Based on: AWS Polly responds in the customer's dialect.

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At a glance

Technologies
8
Language
TypeScript
Updated
Apr 2026
  • AWS Lambda
  • DynamoDB
  • Twilio
  • Razorpay
  • Bedrock
  • Gemini 2.0
  • Next.js 14
  • CDK
  • #marketplace
  • #whatsapp-commerce
  • #voice-ai
  • #serverless

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