Council of the Islamic Revolution formed Interim Government on Ruhollah Khomeini's order after resignation of Mehdi Bazargan because of Iran hostage crisis.

The Council of the Islamic Revolution was a group formed by Ayatollah Ruhollah Khomeini to manage the Iranian Revolution on 10 January 1979, shortly before he returned to Iran. "Over the next few months there issued from the council hundreds of rulings and laws, dealing with everything from bank nationalization to nurses' salaries." Its existence was kept a secret during the early, less secure time of the revolution, and its members and the exact nature of what the council did remained undisclosed to the public until early 1980. Some of the council's members like Motahhari, Taleqani, Bahonar, Beheshti, Qarani died during Iran–Iraq War or were assassinated by the MKO during the consolidation of the Iranian Revolution. Most of those who remained were put aside by the regime.