evidence: A new addition, a printerlike set up attached to the electronic voting machines, will show if votes have been cast correctly. Look for the transparent window of the VVPAT next to the EVM and look for the printed slip showing the serial number, name and symbol of the candidate of your choice. [...] In the 2016 assembly poll, the commission introduced the system only in 17 constituencies, including Anna Nagar, Vellore, Krishnagiri, Salem (North) and Madurai (East). Election commission under secretary, Soumyajit Ghosh said that it was a stand-alone machine with absolute integrity. "The machine is getting technologically upgraded," the officer said. The collectors and officials were briefed about the latest M3 electronic voting machines that can accommodate a maximum of 384 candidates, including NOTA, by connecting 24 ballot units in a booth. The previous M2 machines could accomodate only 64 candidates by connecting 4 ballot units.