Following the events leading up to the Iranian Revolution, he was arrested in the autumn of 1978, together with many other former officials whom the monarchy tried to use as scapegoats in order to prevent its own eventual downfall. He escaped prison on February 12, 1979, just after the revolution, and went into hiding. Fifteen months later, he left Iran through the border with Turkey and went to Paris.
In exile, Homayoun, was an influential political analyst, writer, and opposition leader. In the nineties he initiated and helped create the Constitutionalist Party of Iran, a political party seeking to establish a liberal democratic homeland.Daryoush Homayoun died on 28 January 2011 in Geneva, Switzerland at the age of 82.
