"I've been extremely sceptical of EVM related conspiracy theories but I'm beginning to question my unwavering faith in the machines & their infallibility," Abdullah wrote in a Twitter post.
The former chief minister was referring to reports of EVM malfunctioning at some election booths in Gujarat.
"I hope the Election Commission can step up & address the questions that are being asked of it about the trustworthiness of voting machines," he said in another tweet.
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