His six colleagues, who will be made ministers, will also use the metro train to the venue.
Experts argue that 700 litre water is a gross overestimation of demand, which is not more than 350 litre per day per household.
Kejriwal had said earlier in the day that he would personally invite his "guru" Hazare for the ceremony.
He also said that his party has chalked out a plan as to where the money for providing 700 litre water per house will come from.
AAP leaders including Manish Sisodia, Somnath Bharti, Rakhi Birla and Saurabh Bhardwaj will also be sworn in as Delhi ministers.
"It is up to the L-G to decide the date of swearing-in after holding consultation with Chief Minister designate," the Home Ministry said.
"Congress will lend outside support to AAP as promised earlier," Delhi Congress chief Arvinder Singh Lovely told CNN-IBN.
AAP MLA Vinod Kumar Binny, who had threatened to revolt against the party, has now come out officially denying it all.
AAP National Convener Arvind Kejriwal will be Delhi chief minister and he will take oath on December 26.
Congress, after being routed in Delhi Assembly polls, had said it would be giving unconditional support to AAP to form the government.
The decision will be made on Monday but if the verdict is the same the we will form government in Delhi," said AAP leader Manish Sisodia.
The elder, K Chhawnthuama, of the Presbyterian Church was arrested three days after Lal Thanhawla filed an FIR at the Aizawl police station.
AAP has sought time till Monday to seek the people's verdict through SMSes on whether it should form the government with Congress's support.
The Arvind Kejriwal-led AAP claims that it has made all attemps to ensure public opinion is not influenced.
Sources say that there is intense pressure on several newly elected MLAs of the AAP to form government with Congress's support.
Sources say there is intense pressure on several newly elected MLAs of the Aam Aadmi Party to form government with Congress's support.
AAP says they were not able to get a majority and therefore its only fair that they let the people have the final opinion.
Kejriwal said he would respect and follow the "people's verdict", whether it was against or for the party.
AAP leaders and MLAs will start the process of public consultation and hold rallies in every constituency soon.
The AAP has reportedly commissioned a poll to gauge public opinion among voters.
AAP in its letter to the people has asked for their views on whether they should take support of Congress and BJP to form government in Delhi.
Dikshit's address to the workers came in the backdrop of stepping down of DPCC chief JP Agarwal from the post.
Interestingly,Congress leader Arvinder Singh Lovely had insisted that that the party had given unconditional support to AAP.