He also urged all stakeholders, including the Defence and the Home ministries, not to indulge in blame game and work together to ensure that the newly-developed delivery of postal ballots to service voters through electronic means can be improved.
"We are working with an open mind to improve the system," he said.
He said "naysayers" who have raised concerns about the e-ballot system are being addressed by the IT experts so that a fool-proof technology is in place.
Zaidi said the e-ballot system will be "escalated" in the coming days ahead of assembly polls in Uttar Pradesh, Uttarakhand, Punjab, Manipur and Goa to be held early next year.
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Addressing a seminar of stakeholders on the e-ballot system introduced in October, the CEC said the electoral rolls relating to service voters is "not satisfactory" and "not updated".
He said out of nearly 25 lakh personnel of armed forces and central and state police organisations, some 14 lakh are service voters.
Personnel posted in peace stations can also enrol themselves as regular voters and such people are then not included in electoral rolls meant for service voters.
Speaking on the occasion, Army's Adjutant General Lt Gen
Rakesh Sharma flagged a variety of issues dealing with practical problems relating to postal ballot.
He said the OTP should be provided at the unit level and not to soldiers because in far-flung areas there are no mobile connections and a service voter will not get it without a proper mobile connection.
He said allowing use of locally-procured envelopes is one of the solutions.
He said the Army is working overtime to correct the service voters' electoral rolls from the scratch.
Three out of four service voters in Puducherry's Nellithope assembly constituency used the e-ballot to cast their votes in November 19 bypoll. The new system was used as a pilot project in the state.
Accepting a long-pending demand, government has amended electoral rules to allow service voters, including Armed Forces personnel, to get their postal ballot through electronic means to save valuable time.
This would cut short the delay experienced in the present system of two-way transmission of ballot paper by the postal services.
Two-way electronic transmission has not been recommended by the Election Commission for security and secrecy reasons.