India is preparing to introduce new SIM-binding requirements for messaging applications from January 1, 2027. The proposed rules could change how people access services such as WhatsApp and Telegram, particularly for users who remove their registered SIM cards or use messaging accounts on multiple devices.
The government aims to tackle cybercrime by making it harder for fraudsters to operate messaging accounts linked to Indian mobile numbers without retaining the associated SIM cards.
The Department of Telecommunications (DoT) previously extended the compliance deadline to December 31, 2026, after technology companies raised technical concerns. According to reports, Apple has now made changes to its operating system to support SIM binding, although the company has not publicly confirmed the reported update.
What Is SIM Binding and How Will It Work?
SIM binding links a messaging account to the SIM card associated with its registered mobile number. Under the proposed requirements, supported messaging applications would need to verify that the registered SIM remains present in the device.
For example, if a user registers WhatsApp with a Jio mobile number, the associated SIM would need to remain in the phone under the proposed system. Removing the SIM or moving it to another device could affect access to the messaging service.
The change could also affect people who rely on Wi-Fi to use messaging applications after removing their registered SIM. However, the precise user experience will depend on how individual applications implement the requirements and the final directions issued by the DoT.
Which Messaging Apps Could Be Affected?
WhatsApp and Telegram are among the major messaging platforms expected to comply with the new requirements.
Reports also suggest that Snapchat may be exempt from SIM binding, despite being included in the government’s original directions issued in November 2025. Official confirmation of this reported exemption is still awaited.
Signal’s position is also unclear, as the application has reportedly not responded to the government’s notice.
The final impact on each platform will depend on the applicable compliance requirements and any subsequent official announcements.
Why Is the Government Introducing SIM Binding?
The government is seeking to address a security concern involving messaging accounts that remain operational even after their registered SIM cards have been removed. Such accounts can potentially be accessed remotely, creating challenges for investigators attempting to identify people involved in online fraud.
According to the figures cited in the report, cyber fraud losses in India exceeded ₹22,800 crore during 2024.
SIM binding is intended to strengthen the connection between mobile numbers and messaging accounts, helping authorities address scams involving impersonation, so-called digital arrests and fraudulent investment schemes.
What Will Change for WhatsApp and Telegram Users?
People who normally keep their registered SIM cards in their smartphones may experience little immediate change. However, users who regularly switch devices, operate messaging accounts on separate phones or depend on secondary devices could face additional restrictions.
The government has also relaxed its earlier proposal that would have required messaging web sessions to log out automatically every six hours. Under the revised approach described in the report, web sessions would instead be subject to risk-based checks.
The December 31, 2026, compliance deadline is expected to precede the planned start of the new system on January 1, 2027. The actual impact on users will depend on final DoT implementation directions and how the affected applications introduce the necessary changes.
Disclaimer
This article is intended for general informational purposes only. The proposed SIM-binding requirements, implementation dates and reported platform exemptions are based on the information provided and have not been independently verified. Regulatory directions and technical requirements may change before implementation. Readers should consult official Department of Telecommunications announcements and updates from individual messaging platforms for confirmed requirements and guidance.