Kejriwal, accompanied by his party colleagues Manish Sisodia and Sanjay Singh, sat near Assi Ghat for over one-and-half hour.
Earlier, at a press conference, he lashed out at Narendra Modi over the attack on Bharti allegedly by BJP workers and questioned whether the Gujarat model of development was about "threatening" people.
He had also demanded immediate intervention of the EC to ensure free and fair polls.
Accusing the local administration of not taking action against those involved in the attacks on AAP workers, Kejriwal asked, "What kind of culture BJP is bringing to this holy city?
"This kind of attack is against the tradition and culture of this temple city. Is this Gujarat model where people are either threatened or bought over," Kejriwal, who is locked in a high-profile electoral battle against Modi here, said.
"Our supporters are not safe here. This is a fight to finish (Aar Par Ki Ladai). Anything can happen here. For one person (Modi), the administration has closed the entire city but not heeding to any of our requests," Kejriwal said.
Targeting the UP government, Kejriwal said, "It appears that there has been some kind of understanding between Samajwadi Party and BJP. I have done road shows across the country. But here I have been denied permission to hold road shows."