A fire broke out at the BSNL Anna Road telephone exchange building at 9:30 AM on 20 December 2025.

The Fire and Rescue Team was promptly notified and arrived at the spot immediately, completing the rescue operation with great efforts.

Senior officers from Chennai Telephones are present on-site to oversee rescue measures and restoration of services.

The incident impacted mobile voice and data services in Chennai, the rest of Tamil Nadu, Andhra Pradesh, and Telangana, and affected calls to other operators and emergency services.

Immediately, Emergency services and calls to other operators have  been restored.

Voice and data services in Andhra Pradesh, Telangana, and the rest of Tamil Nadu have been restored, while services in Chennai are partially restored and restoration work is ongoing. The cause of the fire is under investigation.

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