Section 46(8)(ii) in The Goa Panchayat and Zilla Panchayat (Election Procedure) Rules, 1996
(ii)If any voter has inadvertently dealt with the Ballot paper or any of the other papers sent to him under sub-rule (3) in such manner that cannot conveniently be used, a second set of paper shall be issued to him after he has returned the spoilt papers and satisfied the Returning Officer of the inadvertence.