However, there is a unanimity within the party and the government to have a dalit face as a replacement for Kumar.
More importantly, the move will also be tactical, party sources said, as it is looking to woo dalit voters ahead of the Punjab Assembly polls to be held next year.
Although the party has 12 dalit MLAs, about eight-nine MLAs could be in the race to replace Kumar.
Gautam, considered close to Kejriwal, also heads the legal cell of the party, apart from being one of the seven vice-presidents in the Delhi unit.
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However, one thing which could go against him is that Gautam is a Jatav dalit while Kumar is a valmiki.
Apart from Gautam, others who are in the race are Vishesh Ravi, Prakash Jarwal, Ajay Dutt, Ved Prakash, Raju Dhingan, Girish Soni, Hazari Lal Chauhan and Fateh Singh.
"The Chief Minister, along with Home Minister Satyendar Jain will leave for the Vatican City tomorrow to attend the cannonisation of Mother Teressa to be held on September 4. He will return on September 5. In his absence no new face will be announced," said an AAP functionary.
In a sudden move, Kumar was sacked from the council of ministers yesterday by Kejriwal after he received a nine-minute-long CD in which Kumar was purportedly shown in a compromising position with a woman.
In a video message, Kejriwal today said said Kumar had "betrayed" the core values on which AAP will never compromise and hit out at rival parties for their "indifference" in taking action in cases of wrongdoings and corruption.