In his letter to the Chief Minister, Khan wrote that he served Delhi people with full dedication since the day he was elected.
"I exposed several corruptions of the previous government after I became the chairman of Delhi Waqf Board. But some people are not liking my honesty and spirit of service as they are framing me and my family in fake cases," Khan said in the letter.
"I am tired of giving clarifications on various allegations... I would like to be free from all the responsibilities... I resign from all the posts," Khan wrote.
Khan was made the Chairman of Delhi Waqf Board in March. Recently Khan was said to have been involved in an alleged recruitment scam in the Waqf Board where the Anti-Corruption Branch (ACB) has launched a "preliminary inquiry" against him.
Khan, however, claimed that the charges against him were baseless.
The Aam Aadmi Party (AAP) MLA from Okhla, Khan raised the issue of the previous government illegally giving Waqf Board land to the Delhi Development Authority in the Delhi assembly last month.
Khan was arrested on charges of threatening a woman on July 24 and was released on bail on July 28.
