Section 23(1)(a) in The Tamil Nadu Town Panchayats, Third Grade Municipalities, Municipalities and Corporations (Elections) Rules, 2006
(a)in the case of election of a Chairman, in the respective Town Panchayat Office or Municipal Office and in the case of election of a Mayor, in the respective Corporation Office and also in two or more conspicuous places in all wards of the respective Town Panchayat or Municipality or Corporation, as the case may be; and