Here's what they said:
Arvind Kejriwal, AAP: This was people's elections. I will be everyone's CM. Ending bribery top priority.
Anna Hazare: Urge Kejriwal not to forget aandolan.
Narendra Modi, PM: "Spoke to @ArvindKejriwal & congratulated him on the win. Assured him Centre's complete support in the development of Delhi," Modi tweeted.
Yogendra Yadav, AAP: We have stopped the Modi juggernaut. Hope is alive.
Manish Sisodia, AAP: Now, the interpretation is that the people of Delhi want an honest government, the people want to get rid of hollow speeches or statements like women should give birth to four children or 'ghar wapsi'. Instead they want a government that has an action plan for Delhi. AAP has the vision for Delhi. AAP has the action plan for Delhi. AAP has the credible leadership for Delhi.
Kiran Bedi, AAP: If the party wins it will be a collective victory, if it loses it is individual, I will take full responsibility. Even during my policing days if their was a failure, responsibility was mine.
Ajay Maken, Cong: It is too early. The voting count has just begun. Let's wait. It is just a matter of an hour or two. So, let's just wait for the full results to come out, only then I will be able to react. Even if we are getting two out of 10 or 12 odd seats, so it is better than the exit polls at least.
GVL Narsimha Rao, BJP: "In this election it was a referendum on Arvind Kejriwal. That's how people of Delhi saw it. I think people have certainly voted for Kejriwal. It was a referendum of AAP's 49 days in office and its performance. People felt they should be given a chance," Rao said when asked if it was a referendum on Narendra Modi's government.