NEW DELHI: Waving brooms - AAP's election symbol- and placards, jubilant supporters of the party today converged outside its office in large numbers after its impressive performance in the Delhi Assembly election.The activists chanted "Vande Matram" and danced to the beating of drums outside the premises while police beefed up security.AAP senior leader Kumar Vishwas told supporters, who were awaiting the final results, that the party has answered Sheila Dixit and all others who had raised doubts about it.Supporters were also seen applying colour on each other as celebrations started soon after the trends showed that the party was leading in over 20 seats.