Kejriwal and his cabinet quit the government in Delhi after 49 days over the defeat of anti-graft bill by the Congress and the BJP in the assembly.
However, Sisodia adds hastily that Kejriwal's dramatic resignation "would be propitious in the long run as we are out to do clean politics."
"If Arvind wins in Varanasi, it will be equal to winning 100 seats," Sisodia said, while admitting it would be an uphill task.
Party sources said they were hoping to win seats in Delhi and Punjab. Polls have already been conducted for Delhi's seven seats.
"It is not going to be easy against Modi but opinion of people changes in a trice," said another AAP leader who did not wish to be identified.
