In an "open letter" to Yadav, Ashutosh, who is AAP's Delhi unit convener, also said that Kejriwal "forgave" him in an act of magnanimity and no action was initiated.
"Various stories started appearing in the newspapers which were tarnishing the image of the party and also that of Arvind. Initially, these were ignored. But, later, a few suspected your (Yadav's) hand in this. You were confronted, but you denied it every time.
Highlighting five points in his letter, Ashutosh claimed that Yadav had ambitions of becoming the chief minister of Haryana and was pressuring Kejriwal for making him in-charge of the state.
"This was the time when you were very close to Arvind. He had total trust in you. You were his eyes and ears, and also the biggest trouble-shooter. This was also the time when everybody thought that after Delhi, Haryana would be the next breakthrough state for AAP.
He claimed that the Delhi Chief Minister was "overruled" by Yadav and Prashant Bhushan over his decision not to contest all the seats in the Lok Sabha polls, in which the party faced a debacle.