India requires WhatsApp, Telegram, and Signal to link to active SIMs and log users out every 6 hours to combat fraud.

India mandates WhatsApp, Telegram, Signal to stay linked to active SIMs under 2025 Telecommunication Cybersecurity Amendment Rules; apps must verify SIMs within 90 days, log out web users every six hours with QR re-verification, classify as Telecommunication Identifier User Entities (TIUEs), submit compliance reports in 120 days, with penalties for non-compliance, aiming to prevent cybercrime and enhance accountability.