Madani joined Organization of Iranian People's Fedai Guerrillas in the 1970s.

[1] As of 1979, he was considered a leading figure in the group,[2] and held position as a member of both executive and central committees.

[3] He unsuccessfully ran for an Assembly of Experts for Constitution seat from Tehran constituency, garnering 100,894 votes.

[4] He and Farrokh Negahdar wanted to convince Mohammad Beheshti of the Islamic Republican Party to form an anti-imperialist front, a request that was not accepted.

[2] He became critical of the new regime, attacking it for being undemocratic and reactionary while Negahdar maintained that it was on the right track.