AAP leader Mayank Gandhi, who has had a fallout with Arvind Kejriwal, on 11 November, resigned from its National Executive citing "losing interest" in politics, a month after the party's Maharashtra unit was dissolved.
The Maharashtra unit of AAP was disbanded following its "reluctance" to act against Mr Gandhi, the organisation's best known face in Maharashtra, who had said that Mr Kejriwal is "hell bent on destroying" the organisation.
Through an open letter published in his blog, that he addressed to "Arvind and my other friends", Mr Gandhi said that he has been "losing interest in politics for some time".
"I think that it is unfair to continue to be a member of NE (national executive) with this mindset. You are requested to please accept my resignation from the NE with immediate effect. Hope that you will find some capable representatives from Maharashtra," he said.
Mr Gandhi had taken on Mr Kejriwal through his blogs when the Delhi Chief Minister was locked in a bitter feud with now expelled AAP leaders Yogendra Yadav and Prashant Bhushan.
However, in his parting note, Mr Gandhi steered clear of any attack on Mr Kejriwal or on any other member of the top leadership and sought to remind Mr Kejriwal that the country "has a lot of hopes from you".
"It has been a wonderful experience working with many of you since January 2011 and being part of the change in this country. I pray and hope that this transformation continue and accelerate in the coming months and years and lead to a resurgent India," he said.