"His relatives are being raided, corruption cases are surfacing every day, but the Chief Minister, completely cut off from the public, came out of his home after days only to watch Sarkar 3... These are Mungerilal ke Haseen Sapne (pipe-dreams). When did Arvind Kejriwal last go to his office? When did he climb the secretariat stairs? The people of Delhi probably have no idea that their CM has gone to office barely two days in the past year," Mr Mishra said in a blog post.
In the long post, Mr Mishra also described Mr Kejriwal as the Chief Minister who has no portfolio, who "works the least and takes most holidays" and "is on his way to becoming most corrupt".
Mr Mishra was suspended from the party last week, after he went public with allegations of corruption against Mr Kejriwal and claimed he had seen him receiving Rs 2 crore from another minister. He also alleged that the Chief Minister's brother-in-law had scored illegal land deals.
Mr Kejriwal and AAP say Mr Mishra was sacked because of poor performance, and that his allegations are wild and baseless.
A week ago, he started an indefinite hunger strike demanding that the AAP chief "reveal" the source of funding of foreign trips taken by five AAP leaders -- Sanjay Singh, Ashish Khetan, Raghav Chadhha, Satyendar Jain and Durgesh Pathak -- in the last two years.
The fast ended when he fainted while speaking to the media on Sunday. He was taken to hospital, and released on Monday.