The party has given representation to all sections of society and the first list included 12 persons from farmer families, nine from Scheduled Castes, and some professionals.
The incumbent government has been exposed as a "suitcase di sarkar" after the recent ED raids that unearthed crores of rupees from the chief minister's kin, he said in a statement.
Mann was declared as the AAP's chief ministerial candidate for Punjab Assembly polls on January 18 by party's national convenor Arvind Kejriwal.
The Congress leaders said the raids against Channi's relative are in violation of the EC's directives to the finance ministry and other probe agencies to ensure a level-playing field in the polls.
The Mayawati-led party has tied up with the Shiromani Akali Dal (SAD) for the Punjab assembly elections.
On Monday, Congress tweeted a video from its official handle projecting Channi as the next CM.
The local bodies minister said the Congress Party had set the tradition of declaring its chief ministerial candidate ahead of the elections in 2012 and 2017.
Prem Singh Bhangu said the Sanyukt Samaj Morcha (SSM) has announced 57 candidates so far and the rest will be announced in the next two or three days.
Earlier, former Congress chief Rahul Gandhi said ED raids had become the BJP's favourite weapon as it had things to hide.
He said the AAP "government" will implement a 'pro-Punjab Financial Model' to make the state prosperous and deliver corruption-free rule.
Kejriwal made the comment as the Enforcement Directorate (ED) raided the premises linked to the Channi's nephew and others as part of a money laundering probe against "sand mafia".
The Shiromani Akali Dal (SAD) leader also called Mann as a "dummy face", alleging that Delhi Chief Minister Arvind Kejriwal would be the "real face" of the AAP in the state.
General J J Singh is the second Army chief after Gen V K Singh who has joined the BJP.
Punjab Chief Electoral Officer (CEO) S Karuna Raju said the EC has appointed Girish Dayalan as DC-cum-DEO of Ferozepur, while Vineet Kumar will hold the post in Bathinda.
Premises linked to Bhupinder Singh alias Honey, a relative of Channi, were covered under the ED raids as part of a money laundering probe against the "sand mafia" and companies.