India carried out a nationwide test of its indigenous Cell Broadcast Alert System (CBAS) on Saturday, May 2, 2026, sending full‑screen emergency notifications to mobile phones across all 28 states and eight Union territories. The exercise, led by the National Disaster Management Authority (NDMA) and the Department of Telecommunications (DoT), used SACHET — the Integrated Alert System developed by the Centre for Development of Telematics (C‑DOT) — to evaluate rapid, location‑based warnings during crises.
Shortly before noon, phones began emitting a sharp alarm and vibrating as a full‑screen message labeled “extremely severe alert” appeared in English, followed by Hindi and many regional languages. The alert explained the launch of the cell broadcast service using indigenous technology and clarified that the transmission was a test; officials said no action was required. Devices set to silent or Do Not Disturb still produced the alarm sound, and some users received repeated transmissions as different networks and towers were assessed.
SACHET is intended to be India’s centralised disaster‑communication backbone, integrating multiple channels while using cell broadcast as its fastest, most far‑reaching component. Domestic development of the platform is presented as a move toward technological self‑reliance and allows customization for local needs, including multilingual messaging and precise geo‑targeting to limit alerts to affected areas.
Cell broadcast works on a one‑to‑many model: instead of sending messages to individual phone numbers, the network transmits a single message to all devices connected to selected cell towers. That method avoids the SMS bottlenecks that can occur during heavy network use. Government figures cited in the source note more than 134 billion SMS alerts have been sent in over 19 languages historically; cell broadcast aims to cut delivery delays to near‑zero, which is vital in sudden disasters where minutes matter.
The system is designed to cover a wide range of hazards — earthquakes, cyclones, tsunamis, flash floods, extreme heat and lightning — as well as man‑made incidents such as industrial gas leaks, chemical spills and potential nuclear events. At present it is focused on disaster management and does not yet include specialised categories like child‑abduction alerts, although the infrastructure could support such additions later.
Authorities warned that further tests may continue and that repeated alerts are normal while coverage, timing and device compatibility are evaluated. Only devices with cell broadcast test alerts enabled will receive these messages, and users can change settings in their phone’s safety or emergency‑alert options. Union Communications Minister Jyotiraditya Scindia wrote on X that the system will allow instant, location‑based alerts in local languages and is an important step toward strengthening citizen safety. The government has not announced a firm timeline for full operational rollout.
Original Source: https://www.firstpost.com/explainers/india-cell-broadcast-alert-system-explained-disaster-warning-how-it-works-14006810.html
Category: India
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Publish Date: 2026-05-02 18:00:00
