The Supreme Court on Friday rejected all the petitions seeking the complete verification of votes cast using Electronic Voting Machines (EVM) with Voter Verifiable Paper Audit Trail (VVPAT) slips. A two-judge bench comprising Justices Sanjiv Khanna and Dipankar Datta also rejected a demand to go back to ballot papers in elections. During the hearing on Wednesday, the bench asked the poll body to clarify if the microcontroller is installed in the controlling unit or in the VVPAT; is the microcontroller one-time programmable; the number of available Symbol Loading Units; data period storage; and whether the Control Unit is only sealed or is the VVPAT is kept separately.