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Bilingual Tamil voice AI agent grounded in Samacheer textbooks

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The Problem

What we were solving for

TNPSC aspirants in rural Tamil Nadu face English-only AI tools — but syllabus is rooted in Tamil Samacheer textbooks and students need Tamil voice support.

The Build

How we approached it

Tamil Voice AI Tutor (Whisper → Claude → Google TTS), Samacheer RAG via pgvector, Descriptive Answer Evaluator for essays, News→Syllabus mapper from Hindu/Dinamani/PIB Tamil, and Offline PWA for rural students.

The Outcome

What it does in production

Group 1/2A/2/4 patterns. Real-time leaderboard via Socket.io. Daily 6AM challenge with WhatsApp viral share cards.

Tech Stack

Built with

ReactNode.jsPythonLangChainClaude AIOpenAI WhisperGoogle TTSpgvectorSocket.io
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