AAP's top brass, which had earlier made claims of sweeping the Punjab election, said it was disappointed with the poll performance and will review the reasons behind it.
"We accept people's mandate. All volunteers worked hard. Our struggle will continue," party chief Arvind Kejriwal tweeted.
While party had garnered votes in the name of Arvind Kejriwal in both the states, senior AAP leader Kumar Vishwas sought to defend the Delhi chief minister saying the responsibility of the results is "collective".
During his poll campaign and rallies, Kejriwal claimed that the AAP, in its maiden foray in assembly polls outside Delhi, would sweep Punjab and Goa. He had said that AAP will repeat its Delhi performance where it won 67 out of 70 seats in 2015.
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Its vote share in Goa was six per cent as compared to 32 and 28 per cent of the BJP and Congress respectively. Even the independents' 10 per cent vote share in the state.
The party was looking to establish itself as an alternative to the Akalis and the Congress, putting up a spirited fight in Punjab. Kejriwal addressed over 95 rallies in the state over the past few months.
Vishwas said the AAP is a "nascent" party in power in Delhi, but it has emerged as a principal opposition party in Punjab.
"We were very hopeful that we would form government (in Punjab), but results are not as per our expectations," Vishwas said.
AAP leader and Delhi minister Kapil Mishra said the party had not expected such results in Punjab and Goa.
"This was not expected and it its the time to review," Mishra said.
AAPs big guns failed to click in Punjab. Campaign committee incharge and party MP Bhagwant Mann, party convener Gurpreet Singh Ghuggi, journalist-turned-politician Jarnail Singh, legal cell incharge Himmat Singh Shergill and Dr Balbir Singh bit the dust.
Incidentally, Jarnail Singh had quit as an MLA from Rajouri Garden assembly seat in Delhi to contest against Punjab chief minister Parkash Singh Badal and Amarinder Singh from Lambi.
Senior lawyer H S Phoolka, who has been fighting for the 1984 anti-Sikh riots victims, AAP spokesman Sukhpal Singh Khaira, a former Congressman, journalist-turned-politician Kanwar Sandhu, trader cell incharge Aman Arora, Harpal Singh Cheema, Manjit Singh and Prof Baljinder Singh were among those who won their seats.