The decision was taken early on Monday after Kejriwal met Hazare in Ralegan Siddhi to seek his blessings before beginning his upvaas.
"I explained to him the objective of my fast. He has said that he will come to the fast venue for one day. But he will not be fasting with me," Kejriwal told reporters after his meeting with Hazare.
Given Hazare's flip flop on supporting Kejriwal's political party, it will be interesting to see whether he will listen to those who want him to stay away from AAP or bless his former associate by making his presence in the national capital.
Kejriwal has said he is fasting to unite people on rising water and power tariffs in the national capital.
This will be Kejriwal’s maiden fast after parting ways with Hazare in September last year over their differences on entering politics.