As part of its efforts to strengthen the emergency communication system, the National Disaster Management Authority (NDMA) was scheduled to conduct a nationwide test of the Cell Broadcast Alert System on Saturday (May 2, 2026)—and, in accordance with the planned schedule, the test was indeed carried out. Users in numerous locations across the country received these messages.

If, later this week, your mobile phone beeps loudly or an unexpected message flashes across your screen, do not panic. In fact, the government is currently testing a new emergency alert system designed to send direct warnings to all mobile phones within a selected geographical area; these tests are currently visible to the general public.

This initiative is being spearheaded by the Department of Telecommunications (DoT), under the Ministry of Communications, in collaboration with the National Disaster Management Authority (NDMA). The system is integrated with an alert platform named 'SACHET,' which has been developed by C-DOT.

Unlike standard text messages, Cell Broadcast Alerts are transmitted simultaneously to all mobile phones within a specific geographical region. This ensures rapid and extensive coverage without overloading the telecom networks. This feature makes the system particularly effective during major emergencies, when phone lines and data networks often become congested.

This technology has been integrated with the existing SMS infrastructure to bolster the delivery of alerts during natural disasters—such as tsunamis, earthquakes, and lightning strikes—as well as during man-made emergencies, such as gas leaks or chemical hazards.

This system is entirely indigenous. C-DOT has been entrusted with the responsibility for the indigenous development and implementation of this Cell Broadcast-based alert system.

As part of the nationwide rollout, various tests and trials are being conducted to assess the system's performance and reliability before its formal launch. During this phase, citizens may receive test messages on their mobile devices in English, Hindi, and various regional languages.

According to reports, officials have stated that since mobile towers across different networks are currently being evaluated, users may receive these alerts more than once. This is normal and is to be expected. The government has clarified that anyone who receives this message does not need to respond to it.

Test messages will be received only on those mobile phones where 'Cell Broadcast Test Alerts' are enabled. Users can manage these settings via: Settings > Safety and Emergency > Wireless Emergency Alerts > Test Alerts.

These messages are part of a planned nationwide testing exercise and require no action on the part of the recipients. Once the trial concludes and the system is formally launched, it will function automatically during actual disasters, reaching citizens in affected areas within seconds.