Tense moments prevailed at Anna Salai, one of the arterial roads in Chennai, as fire erupted on the top floor of the multi-storey Life Insurance Corporation of India building here, official sources said.
However, there were no casualties in the incident, sources added.
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The blazing fire and thick plumes of smoke were seen billowing from the top floor of the city's iconic structure on Sunday evening, even as a video of the incident went viral.
Sources said five fire attenders were pressed into service to douse the flames.
The immediate cause of the incident is believed to be a 'short-circuit' in the digital board fixed on the terrace, they added.