Bhagwant Mann put out a picture giving names of the 10 party MLAs who will be sworn-in. They include Harpal Singh Cheema, second-time legislator from Dirba and the party's Dalit face.
The cricketer-turned-politician shared the information about his resignation on his Twitter handle.
Gurpreet Singh, who lost from Bassi Pathana seat from where Channi's brother Manohar Singh fought as an independent candidate, blamed Channi.
Former party chief Sunil Jakhar has hit out at those who described former Chief Minister Charanjit Singh Channi as an asset, while reviewing the debacle at a meeting in Delhi on Sunday.
Balbir Sidhu said the way the Punjab Congress chief and the chief minister indulged in open war of words, putting the party in a state of 'civil war', left the field wide open for the opposition.
The oath-taking ceremony will be held at Khatkar Kalan, the ancestral village of legendary freedom fighter Bhagat Singh in the Nawanshahr district.
Harpal Cheema, Kultar Singh Sandhwan lead race for AAP's Punjab Cabinet, women ministers likely: Sources
According to the sources, the party high-command has given a free hand to Mann to decide his Cabinet colleagues.
Labh Singh Ugoke, who defeated the outgoing Chief Minister Charanjit Singh Channi from the Bhadaur seat with a margin of 37,550 votes, used to work in a mobile repairing shop.
The AAP swept the Punjab assembly polls, results of which were announced on Thursday, bagging 92 seats in the 117-seat assembly.
Mann reached the Raj Bhawan here around 10:30 am. He was elected the AAP's legislature party leader at a meeting of the party MLAs in Mohali on Friday.
The performance of Congress was no better either, as it came down to 18 from 77 to be voted out of power. It was the grand old party’s worst performance in the state.
The party tweeted that Kejriwal and Mann will join a mega roadshow in Amritsar on March 13, to celebrate the victory and thank the public.
AAP’s victory in 29 of these seats is the highest-ever by any party. Congress won four and Shiromani Akali Dal one. All the SC seats in Malwa region went to AAP.
Navjot Singh Sidhu made the remark welcoming the change, ushered by the people and emphasising that their verdict should be 'humbly accepted'.
Meet people in villages, cities and resolve their issues: Punjab CM-designate Bhagwant Mann to AAP MLAs
Bhagwant Mann asked newly elected AAP MLAs to spend most of their time in villages and cities to resolve issues of public.