Kejriwal wondered why the Commission was not coming out with any official statement and pushing the news of the reported challenge through "sources" instead.
"Why are these stories ascribed to "sources"? How credible are they? Why hasn't EC issued any formal statement? Or is it just a plant? Has anyone actually seen any official statement from CEC? Am trying to get it since evening. Is this news correct?" he said in a series of tweets.
On Wednesday, official sources of the EC claimed that the commission will invite political parties, experts, scientists and technocrats in the first week of May to try and hack the machines.
They said the challenge will be open for a week or 10 days and will have various levels.