First they said EVMs can be hacked into but they did not accept the EC's challenge which shows their claim of being "anarchist" is true as they are "hurting" democratic institutions through their allegations, Delhi BJP chief Manoj Tiwari said.
AAP leaders have been on the forefront in alleging that EVMs are prone to tampering and also raising doubts over recent electoral successes of the BJP.
The party had decided not to participate in the EC's challenge after its request for an open hackathon was turned down by the Election Commission.
"They claimed to hack EVMs by changing its mother board but it seems rather their mental mother board is faulty," Tiwari said.
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Among the 13 political parties that had raised doubts over EVMs, only two -- NCP and CPI-M -- participated in the EC's challenge.
However, no attempt was made by representatives of the two parties to hack into the machines.
Chief Election Commissioner Nasim Zaidi said after the challenge that EVMs are "non-tamperable" and the issue of hacking into the machines "stands closed".