India, Feb. 20 -- India on Thursday, February 20, carried out another nationwide test of its emergency alert system, triggering a loud warning tone and flash message on mobile phones across several regions as part of efforts to strengthen disaster preparedness.

At around 11.58 am, both iPhone and Android users reported receiving a "Test Alert" notification accompanied by a sharp beep. The message stated that it was a test cell broadcast sent by the National Disaster Management Authority in coordination with the Department of Telecommunications, under the Government of India.

"This is a TEST Cell Broadcast message sent by the National Disaster Management Authority in coordination with Department of Telecommunications (DoT), Government of...