Soon after he was sacked by Kejriwal, Mishra claimed he would "expose" the involvement of certain AAP leaders in an alleged scam in the supply of water on Sunday.
Khaira said the party leadership in Delhi should take wider view in selecting who would be AAP's Punjab unit chief by seeking opinion from the volunteers also.
"Kapil Mishra submitting proof to the Lieutenant Governor is enough to show the true character of the AAP frontrunners".
Making another potentially damaging accusation, Mishra claimed that Jain had told him that he had settled land deals worth Rs50 crore for Kejriwal's relatives.
The Ministry of Home Affairs had yesterday asked the Arvind Kejriwal-led party to explain certain fundings from overseas after suspecting that the party might have violated the provisions of the Foreign Contribution Regulation Act. "I can not keep quiet anymore". I don't care about my political position or even my life.
The party also inducted two new faces - Seemapuri MLA Rajendra Pal Gautam and Najafgarh legislator Kailash Gehlot - into the Cabinet.
On his removal, he said he has not received any official confirmation about his removal. An aide of Kejriwal said that Mishra did not meet the chief minister separately.More news: Kangana Ranaut to direct comedy film
Mishra added that he informed Delhi's Anti Corruption Bureau (ACB) about this transaction immediately.
The 36-year-old activist-turned-politician, who is the son of BJP's former East Delhi Mayor Annapurna Mishra, said he was sacked after he spoke out about corruption in the tanker scam.
Jain, who holds the Health portfolio, was accused of nepotism charges in the appointments of his daughter Soumya Jain and Nikunj Agarwal, a relative of Kejriwal's wife, to government posts. "I exposed Shiela's (Dixit) corruption", Mishra said in a tweet.
He also denied that he was ousted for supporting AAP leader Kumar Vishwas.
Earlier on Saturday, shortly after being removed from the Delhi Cabinet, Mishra said he may have been axed for saying he would submit the names of those people involved in the tanker scam to the Anti-Corruption Bureau (ACB).
When I became minister I sent a report against Sheila Dikshit to CM. "No CBI enquiry against me", he said.
Recently, a rift developed within the party after Amanatulla Khan had alleged that Vishwas was planning a coup against Kejirwal. "The Home Ministry once under Manmohan Singh and the other time under Narendra Modi has already conducted an investigation and submitted the report of the same to the Delhi High Court citing that nothing has been found wrong in the funding of the Aam Aadmi Party (AAP)", Ashutosh told ANI.