on 22 January 2013 the Election Commission informed the Supreme Court that it would include Voter Verifiable Paper Audit Trail (VVPAT) system which is in the testing phase after the court agreed with some points raised by Swamy who was the contender, in the machines so that every voter will come to know who he/she is voting by getting a printed slip after pressing the EVM button. The voter paper audit trail has then been in use from 4 September 2013.