Kejriwal said the feedback from the people has been that AAP provided very good governance in the 49 days it was in power and they "want that governance back".
People are saying that the systemic changes like lokpall bill that AAP wanted to bring about could have waited for some time, Kejriwal said adding that citizens had got relief from bribery, corruption and rising prices during AAP's tenure.
He said the party had intended to pass many bills, including the lokpall.
"That is the reason that the people are angry with us. They said you should have continued, provided good governance as long as you are there and when you have the majority you could have brought the systemic changes," he said.
He said AAP had not wanted to form a government with the Congress party "but overwhelmingly" people told them to do so.
"Similarly before resigning we should have consulted the people," he added.
He said AAP's journey started four years ago with the Anna andolan and acknowledged the support of the NRIs and Indian diaspora in strengthening the party.
"We wanted corruption free India. This was our goal. That goal is still before us. India is not corruption free yet," he said.
Terming AAP's win the New Delhi elections as a "milestone", Kejriwal said he had his doubts about whether it is possible to fully rid India of corruption.
"Indians are first rate citizens who are victims of third grade governance. We have talent, human and natural resources in abundance. But the problem is governance. If the governance is improved then we can leave behind many countries of the world," he said as the crowd cheered and applauded.
Kejriwal said in the last elections, the party had the intent and passion to bring about changes in Indian politics. "After being in the government for 49 days we now have the confidence that India can become corruption free," he said.
Urging Indians living abroad to work for the betterment of India, Kejriwal expressed confidence that in some years, opportunities would be created in India that would lure its citizens working in foreign lands to return to their home country.
On how India can achieve high growth rate, he said the growth model that should be followed must be development without corruption and not development with corruption.
"If there is development with corruption, then the development is for a select people and a lot of people are left outside the scope of growth.
"If the GDP grows only because a few families in our country, not even corporates, but a few families grow at a very exponential rate, (that growth) will be at the cost of the rest of the population," he said.
AAP supporters gave a resounding welcome to Kejriwal, who was swamped by the large number of people as they jostled to take pictures with him. Women and children cheered Kejriwal as supporters shouted slogans calling for AAP rule in New Delhi.