Aam Aadmi Party (AAP) leader Shazia Ilmi on Saturday said the people of Delhi had given them the mandate because they were sympathetic to the problems of the people.
Ilmi, who was attending the swearing-in ceremony of party chief Arvind Kejriwal, said, "We have done a lot of hard work and understood the concerns of people by going to them. That's why the people have given us a chance."
"This might look a small step, but it is a great leap for people and democracy. And Arvind Kejriwal will work for the people as a caretaker. We are associated with the problems of people," she added.
On Anna Hazare, who is not attending the ceremony, Ilmi said, "As Arvind has said, he is always in our hearts and will always rule this place. If he had come here, then, we all would have been very happy. We miss him very much."
Kejriwal became Delhi's youngest chief minister on Saturday at the age of 45.
After the oath-taking ceremony, Kejriwal and AAP legislators will hold their first cabinet meeting. They are expected to work on Sunday as well.
He has been asked to prove his majority in the state assembly by January 3.
His first big challenge is grappling with a 10% hike in CNG prices, announced on Thursday.
Auto drivers in the city, who form a huge section of his supporters, have threatened a strike.