The Assam State Disaster Management Authority (ASDMA) is set to implement the Cell Broadcast System (CBS) across Assam, enabling instant geo-targeted emergency alerts on all mobile phones in the state. Officials confirmed on Monday, 8 June that the rollout will significantly strengthen disaster preparedness and ensure timely dissemination of warnings to both citizens and government officials.

What the Cell Broadcast System Is

The CBS is an indigenous public warning system developed by the Centre for Development of Telematics (C-DOT) under the Department of Telecommunications, in collaboration with the National Disaster Management Authority (NDMA) and the Ministry of Home Affairs. Launched by the Government of India on 2 May this year, the system became fully operational in Assam through ASDMA following the conclusion of the election period.

A nationwide test was conducted on 2 May, but states where the Model Code of Conduct was in force — including Assam — were excluded from that exercise. With elections now concluded, the state government is proceeding with the rollout as per central directives.

How the Alerts Will Work

The technology allows authorised agencies to push emergency alerts to all mobile handsets within a geographically defined area, reaching even roaming subscribers. Alerts will appear as pop-up messages accompanied by a distinctive tone and vibration lasting approximately 30 seconds. Supported devices will also read the message aloud, improving accessibility.

The system is compatible with 2G, 3G, 4G, and 5G networks and supports multiple languages. Critically, unlike conventional SMS-based alerts, CBS remains effective even during periods of network congestion — a key advantage during large-scale disasters when mobile networks are typically overloaded.

When Alerts Will Be Issued

Alerts will be issued exclusively by authorised government agencies during genuine emergencies, including severe storms, heavy rainfall, lightning, cyclones, floods, flash floods, gas leaks, and other disaster situations. ASDMA officials emphasised that citizens may receive alerts during the implementation phase and urged the public not to panic, clarifying that all messages form part of an official, life-saving warning mechanism.

Significance for Assam

Assam is one of India's most disaster-prone states, facing annual flooding, flash floods, and cyclonic storms that affect millions. The CBS rollout represents a structural upgrade from reactive relief to proactive warning — a shift that disaster management experts have long advocated. This comes amid growing recognition that early warning systems can dramatically reduce casualties in flood-prone regions. Notably, Assam's delayed rollout due to the Model Code of Conduct means the state enters the system ahead of the peak monsoon season, when the need is most acute.