Nani Trap - Fraudster's worst nightmare

Nani Trap - an AI nani picks up the call so your grandmother doesn’t have to deal with scammers. India’s elders are hit hardest by phone fraud: digital arrest, fake KYC, UPI scams, etc. Today’s defences are passive - block lists and spam labels. Nani Trap instead flips the call: It is a Gemini Live honeypot which answers as a real sounding elder, wastes the scammer’s time with natural barge-in conversations, and in parallel extracts a live dossier (scam genre, claimed institution, UPI/mule IDs, pressure tactics, transcripts) to report to authorities. Also protects elders from opening fishy links and giving tips. Full security Nani ji Who pays: adult children via a family plan - not the grandparents. At scale, banks/telcos buy freeze-quality scam signal. Helps govt out since ₹22,000 Crore are lost to frauds each year from India. Built during this hackathon: 1. Honeypot persona - Gemini Live nani, barge-in, honeytokens, stalls scammers in character 2. Live extractor - parallel gemini-3.5-flash JSON dossier of IDs, numbers, tactics in real time 3. Offline Gemma - on-device link/SMS/QR triage (sense, decide, act, defer) with no network 4. Twilio bridge - hand-written G.711 μ-law codec and resampler, 8k to 16k to 24k into Live 5. Android handoff - call-screening auto-route plus floating Nani button conference merge 6. Threat registry - dossier clustering into a shared herd-immunity corpus with live trends 7. Immunizer and 1930 - local-language warning cards plus golden-hour cybercrime complaint drafts This is the first real-time multimodal defence built for India. Nani Trap will beat all Cyber Fraudsters.

Team

Placement

Participant