Three days after the Aam Aadmi Party's defeat in the Delhi civic polls, Chief Minister Arvind Kejriwal on Saturday accepted that he has made "mistakes" and said the party will introspect and "course correct".

"In the last two days, I spoke to many volunteers and voters. The reality is obvious. Yes, we made mistakes but we will introspect and course correct," Kejriwal tweeted.

"Time to go back to the drawing board. To not evolve would be silly. We owe that to the voters and volunteers. We owe that to ourselves," he said.

The AAP leader said that action was needed to be taken and "not excuses".

"It's time to get back to work. And even if we slip from time to time, the key is to find the reserves to hold and pull ourselves up. The people deserve nothing less. The only thing constant is change."

The BJP on Wednesday swept all the three municipal bodies of Delhi, returning a tally of 181 of the total 270 seats. AAP managed 48 and Congress 30 wards.

The AAP's defeat comes more than two years after the Delhi assembly elections when it had humbled the BJP, winning 67 of the 70 seats.

However, the Bharatiya Janata Party's Delhi President Manoj Tiwari described it as "a new drama."

" Kejriwal had done it earlier also," Tiwari said giving the example of his stepping down after 49 days of his first time government from December 2013 to February 2014.

He said people will understand his tendency of "changing colours like a chameleon".