He alleged that BJP has promised Rs 1500 for "one fake vote" and Rs 200 to get any "vote for AAP" deleted.
"A top Bharatiya Janata Party (BJP) leader has directed all Delhi BJP MLAs to get at least 5000 fake votes made in each constituency and get AAP votes deleted. Bribe rate is Rs 1500 for new fake vote, Rs 200 to get any vote deleted. This information was given by someone who did this job for BJP last week.
"We are meeting EC officials on Monday at 11 AM and making a formal complaint," Kejriwal said on Twitter.
Delhi has been under President's rule since Kejriwal resigned as Chief Minister on February 14.
In the assembly elections held last year, BJP had won 31 seats in the 70-member house while the AAP emerged victorious in 28 seats.