After voting, a smiling Gandhi flashed her inked finger but did not speak to the media.
Congress leader Ajay Maken, who was with her, earlier claimed that voters were sure to reward the Congress-led UPA with another five-year term.
Kejriwal said after voting that he was confident the AAP would win all seven seats in Delhi where he was chief minister for 49 days until Feb 14.
BJP leader Harsh Vardhan was equally confident that the Bharatiya Janata Party was set to sweep most Lok Sabha seats in contention Thursday due to the "(Narendra) Modi wave".
Chief Election Commissioner V.S. Sampath hoped that voting percentage will keep improving with every round of the Lok Sabha election.
