New Delhi, March 30 -- The Department of Telecommunications (DoT) is set to extend the timeline for messaging platforms such as WhatsApp, Signal, Telegram, ShareChat and Arattai to comply with its SIM binding directive, following requests from companies citing technical challenges, a DoT official said on Sunday, adding that the government is now expecting compliance by December-end. The department had, in November 2025, directed app-based communication platforms that use mobile numbers for user identification to ensure that their services remain linked to the SIM card installed in the user's device, making it impossible to use such apps without an active SIM. The order was issued to curb misuse of telecom identifiers, including instances of...