Mamman Khan also worked for DLF, a commercial real estate development company, for a while before launching a hugely successful construction supply firm.
[citation needed] Mamman Khan contested the Ferozepur Jhirka Assembly elections independent in 2014 and was defeated by Naseem Ahmed by only 3,245 votes.
Mamman Khan then won the Ferozepur Jhirka Assembly elections under the Indian National Congress by a margin of 37,004 votes against Naseem Ahmed.
[4] When speaking in the Haryana Legislative Assembly in February 2023, Mamman Khan displayed photographs depicting acts of violence allegedly by the cow vigilante, Monu Manesar.
Manohar Lal Khattar, also indirectly mentioned Mamman Khan when he said that “fingers are being pointed at some other Congress MLAs” in connection with the Nuh violence and added that absence of a response from the opposition party certainly proves that “something is suspicious".