MCD election 2017: EVM tampering limited to AAP's performance?

Arvind Kejriwal, after losing MCD miserably, in his first outing with the MCD elections said this is not the Modi wave, it is the EVM wave. But what is the AAP chief accusing the government of?

Since UP election, Mayawati to Arvind Kejriwal- everyone's alleging that the EVMs are being tampered. But, does that mean, the machines are being hacked? Does it indicate that these are the words of a loser as the Election Commission has always stood by the fact that the EVMs are tamper-proof.