Just when the campaigning is peaking for the May 25 polls in national Capital, the Congress which is contesting on three of the seven Lok Sabha seats in Delhi as per arrangements with INDIA Bloc partner Aam Aadmi Party (AAP), faltered further as exodus continued on Wednesday.

Two former MLAs and observers for the Lok Sabha seat — Naseeb Singh and Neeraj Basoya — resigned from the party  citing their dissatisfaction with the party's decision to form an alliance with AAP and its choice to allot Lok Sabha tickets to Kanhaiya Kumar and Udit Raj.

In separate letters to Congress chief Mallikarjun Kharge, Neeraj and Naseeb, who are AICC observers for West Delhi and North West Delhi Lok Sabha seats respectively, claimed that the Congress workers are "upset" and feel "humiliated" due to the alliance with the AAP.

The Congress had on Tuesday appointed former MLA Devender Yadav as interim president of its Delhi unit after Lovely resigned citing the tie-up with AAP and statements of Congress candidates in the national Capital, exposing the cracks in the party's Delhi unit.

Last week, former Minister and four-time MLA Raj Kumar Chauhan resigned from the party, alleging that he was humiliated by Deepak Babaria, AICC in charge of Delhi Congress.  Lovely has resigned from the Delhi Congress president  post, protesting against party in-charge Babaria and objecting to the choice and conduct of two candidates who are "total strangers" to party workers.

In the coming days, some more leaders may resign from the party. Several former MLAs here are reluctant to campaign for Udit Raj and Kanhaiya Kumar.

Several prominent leaders including former Maharashtra CM Ashok Chavan, ex-Rajya Sabha MP Sanjay Nirupam, spokesperson Gourav Vallabh, former social media head Rohan Gupta, Acharya Pramod Krishnam, former defense minister AK Antony's son Anil Antony, and Gujarat Patidar leader Hardik Patel have also left the Congress.

In his letter to Congress president Mallikarjun Kharge, Basoya said the alliance with AAP was bringing "great disrepute" and "embarrassment" to Delhi Congress workers on a daily basis.

Basoya, said, "I am addressing the present communication to you, being aggrieved by the alliance of the party with the AAP in Delhi. I have humbly submitted that the said alliance is bringing a great dis-repute and embarrassment to Delhi Congress workers on a daily basis. And I believe that as a self-respecting party leader, I cannot be associated with the party anymore."

The top three leaders of AAP — Delhi CM Arvind Kejriwal, Satyendar Jain and Manish Sisodia — are already in jail. Their party has been accused of serious corruption charges on various issues such as the Delhi liquor scam and Delhi Jal Board scam, Basoya said in his letter.  Also, AAP has throughout its existence levelled serious allegations against the Congress and its top leadership, he said.

 Singh, in his letter, said that Davinder Yadav, who is also AICC (in-charge Punjab), has till now run a campaign in Punjab solely based on attacking Keiriwal's "false agenda. "And today, he will be mandated to praise and support AAP and Kejriwal in Delhi," he said.  The Congress and AAP are not in alliance in Punjab.