"No such codes to tamper EVMs, Motherboard can't be tampered, buttons get blocked once pressed. EVMs tampering proof," said ECI sources.
"Not an ECI EVM," ECI sources further said.
Earlier in the day Kejriwal in a tweet said that Greater Kailash MLA Saurabh Bhardwaj will expose in the assembly session a huge conspiracy hatching in the country.
"If elections continue to be done through these EVMs there will be no measure of democracy left. Only 1 party will rule," Saurabh Bhardwaj said in Delhi Assembly on Tuesday.
"All it takes to rig an EVM is changing the motherboard. All it takes is 90 seconds. Outrageous," AAP MLA added.
The Aam Aadmi Party issued a whip asking all MLAs to be present for the Special Assembly session on Tuesday at 2 pm.