Section 33B(4) in The Rajasthan Municipalities (Election) Rules, 1994
(4)Every control unit and balloting unit of the voting machine used at a polling station shall bear labels, both inside and outside marked with.-(a)the serial number of the ward and name of municipality;(b)the serial number and name of the polling station;(c)the serial number of the unit; and(d)the date of poll.
