Section 19(2) in The Punjab Agricultural Produce Markets (Election to Market Committees), Rules 1961
(2)Immediately before the commencement of poll, the presiding officer shall show the ballot box to such contesting candidates as may be present to satisfy them that the ballot box is empty. The Presiding Officer shall thereafter lock the ballot box and affix his seal as well as the seal, if any, of the contesting candidates, if they so desire upon it in such a manner as to prevent its being opened without breaking such seals.
