WPAT:
Full name of WPAT is Voter-Verified Paper Audit Trial. This is a printer device. This is connected to ballot unit and control unit of EVM. After voting, a ballot slip is printed by the printer, on which the candidate's serial number, name and election symbol are printed. This slip is visible to the voter in a transparent box for 7 seconds, after which the slip goes into the printer's drop box. The sound of a beep is heard. In this way the voting process get completed. This allows the voter to know whether the candidate he has voted has got the vote or not. Its use has increased fairness and credibility in the election process. In the event of a dispute in counting of votes, the help of these slips can be taken.