Kejriwal said all the EVMs to be used in the April 9 by-election in Madhya Pradesh had come from Govind Nagar constituency in Uttar Pradesh and demanded to know what was so special about Govind Nagar.
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Delhi's civic polls are due on April 23 along with a by-election from Rajouri Garden to the Delhi assembly. Kejriwal said the EVMs to be used in Rajouri Garden too had come from Uttar Pradesh.
He said paper ballot should be used in Delhi's civic polls to guarantee transparency.
And if the civic polls needed to be postponed to ensure the use of the paper ballot, they should be postponed, he added.
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Earlier, when the EVMs were defective, if a voter pressed the button for one party, the light for that would not glow. The voter would thus know the machine was faulty.
"But now the light glows correctly but the vote is recorded in the chip in favor of the BJP.
"So EVMs without VVPAT (paper trail) cannot be checked if they are defective or not."
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Kejriwal asked the Election Commission to hand over to the AAP an EVM for 72 hours. "We have experts who will check if the chip can be rewritten or not.
"The software in the chips can be changed. This is happening on a large scale." IANS