Government’s new SIM rule set to redefine how India uses messaging apps

DoT’s fresh mandate forces platforms like WhatsApp and Telegram to bind services to active SIM cards and restrict multi-device access in a bid to curb cyber fraud

by e4m Staff
Published: Dec 1, 2025 10:28 AM | 2 min read

The Union government has introduced a new set of directives that will fundamentally change how Indians use popular messaging platforms. Under the latest instructions issued by the Department of Telecommunications (DoT), apps such as WhatsApp, Telegram, Signal, Snapchat, ShareChat, Arattai and others must now ensure that access to their services is directly tied to the physical SIM card used during registration. This marks a major shift, bringing app-based communication services closer to the regulatory framework traditionally applied to telecom operators.

According to the directive, these platforms must implement continuous SIM-to-device binding within 90 days. This means users will only be able to access their accounts if the original SIM card remains active and inserted in the device. The government has taken this step to address cybersecurity vulnerabilities, as some services currently allow users to operate their accounts even when the linked SIM is absent, enabling misuse from outside the country.

The new rules also impact how people use multi-device setups. Individuals who rely on messaging apps across phones, tablets or PCs may face disruptions, as web-based access will now automatically log out every six hours. This is expected to particularly affect those who use desktop platforms to reduce mobile screen time or manage communication during work hours.

The mandate falls under the Telecommunication Cybersecurity Amendment Rules, 2025, which classify such apps as Telecommunication Identifier User Entities. These platforms must not only enforce SIM binding but also employ a mobile number validation system and submit a compliance report within 120 days. The move is aimed at tightening oversight and curbing cyber fraud, with penalties possible for those that fail to meet the new standards.