Section 27P(1) in Conduct of Elections Rules, 1961
(1)On receipt of intimation under rule 27-O from a classified service voter in regard to his proxy, the returning officer shall mark "CSV" against the name of such voter in the last part of the electoral roll containing the names of all service voters so as to indicate that the said voter has appointed his proxy, and the returning officer shall-(a)if it is an intimation received the last date for making nominations in the constituency, ensure that no postal ballot paper is issued to such classified service voter; and(b)if it is an intimation received after the said last date, ensure that a postal ballot paper is issued to such classified service voter for the election then in progress, in accordance with the provisions contained in Part III of these rules.