Several opinion polls have suggested the AAP would emerge as a major political force and eat into the votes of the Bharatiya Janata Party and Congress.
A survey predicted a win for AAP leader Arvind Kejriwal against Dikshit in the New Delhi constituency.
Taking a jibe at the AAP, Dikshit said: "There are those who took up 'jhadoo' (broom) to clean up corruption but the sting operation has shown that even they are corrupt."
