The counting of votes will take place on November 2.
The Thiruvananthapuram-based Kerala Digital University and the SEC have already entered into a contract to make online voting a reality.
Polling for three 'deferred adjourned' elections - in two assembly seats of West Bengal and one of Odisha - will also be held on September 30.
The retrenched data operators, appointed through Keltron to handle the details of voters, had been located in the Office of the Chief Electoral Officer in Thiruvananthapuram.
The affidavit of CPM leader and minister V Sivankutty was not analysed due to unavailability of a complete and properly scanned document on the Election Commission's website.
The apex court said it would pronounce its order "expeditiously" on the EC's plea against critical remarks such as fastening murder charges against its officials.
The fresh EC guidelines go beyond the ones issued by poll panel for the Bihar assembly elections last year which were being used as a template for elections being held during the coronavirus pandemic.
While the eighth and last phase of election will be held in West Bengal on April 29, the voting exercise is over in Tamil Nadu, Assam, Kerala and Puducherry.
Long queues were seen outside most polling booths where voting is underway adhering to COVID protocols. Over 86 lakh voters will decide the political fate of 284 candidates in this phase.
Presiding officer Dr K M Sreekumar had complained to the EC that CPM MLA K Kunhiraman had issued the threat when he tried to prevent bogus voting on December 14, 2020.