Mr Kejriwal and his cabinet colleagues spent the night at Lieutenant Governor Anil Baijal's office to press for their demands including a direction to IAS officers to end their "strike" and action against officers who have struck work for "four months".
Mr Kejriwal, his deputy Manish Sisodia, Labour Minister Gopal Rai and Health Minister Satyendar Jain met Mr Baijal at 5.30 pm yesterday and since then, they stayed put there.
Mr Tiwari tweeted, "Making mockery of Democracy, No Work only Drama (sic)."
Vijender Gupta, the leader of opposition in the assembly, called Mr Kejriwa's sit-in a way to "shirk work".
A number of AAP lawmakers, party's leaders and workers have also camped near the lieutenant governor's office, and the police have barricaded the area.
The lieutenant governor's office slammed Kejriwal's sit-in, saying it was another protest in the sequence of "dharna without reason".