The civil servent-turned politician, who faced severe criticism for quitting as Delhi Chief Minister in February, said AAP was "fully ready" to take the electoral plunge and identified BJP as its main opponent.
"We are only concentrating on Delhi. As far as I am concerned, I am going to focus on Delhi for next five to 10 years," Kejriwal, who led AAP to a dream debut in the Assembly polls in December last year, said.
"Till Delhi elections, we are not fighting in any other election. After polls here, the party will decide where to fight and where not to fight," he told PTI.
The AAP leader also strongly rejected criticism that he does not know how to govern, saying people were amazed to see the speed at which the AAP government was taking decisions and provided relief to them.
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"We are very confident of our victory. People were amazed to see the speed at which our government was functioning and the kind of decisions we were taking. We are confident of coming back to power," he said.
"They say we do not know governance. I want to ask what is governance. In the last 65 years, BJP have been in power in so many states. Can you name a single state where corruption had come down substantially? Congress has been in governance for 65 years at the Centre and in states, they could not contain corruption. We did it in 49 days. We know governance. They do not," he said.