There will be no power supply in the following areas served by Vaitheeswarankoil substation on December 21. There will be shut down from 9 a.m. to 5.30 p.m. in Sirkali, Vaitheeswarankoil, Authukudy, Thirupungur, Kathiramangalam, and Punganoor, a Tangedco release said.

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