Open-source OpenAI proxy strips Indian PII before LLM calls to aid DPDP Act compliance

A developer has released Indian-PII Shield, an open-source reverse proxy that sits between applications and OpenAI's API and replaces sensitive Indian identifiers with placeholders before prompts are sent upstream. The tool validates Aadhaar, GSTIN, and payment card numbers using checksum algorithms, and it uses contextual detection tuned for Indian names, honorifics, and addresses in Hindi and English. Responses are then restored with the original values so application code works unchanged. The project states it stores no raw PII on disk and logs only metadata such as timestamps, latency, and entity counts. The author cites penalties of up to ₹250 crore under India's Digital Personal Data Protection Act 2023 as the motivation, and proposes a ₹500 per month private deployment as a possible commercial model.
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