Election Laws - Election Polls - Voting - Introduction of Voter Verifiable Paper Audit Trail (VVPAT) with Electronic Voting Machine (EVM) - Petitions seeking direction to c Election Commission of India (EC/) to introduce system of 'paper trail' with EVM - After amendment in the Conduct of Election Rules, 1961, EC/ successfully used VVPAT system in the polling stations of Assembly Constituency of Nagaland - Held: System of 'paper trail' is indispensable requirement 0 of free and fair elections and for achieving confidence of the voters - EVMs with VVPA T system ensure accuracy of voting system - EC/ permitted to introduce the system in gradual stages - Conduct of Election Rules, 1961 - rr. 49A to 49X, 66A, 55C, 56C, 57C and Form 17C.