According to "Iran Focus", soon after attending Elm-o Sanaat University in 1975 to study engineering, Ahmadinejad was caught up in the Islamic Revolution of Ayatollah Ruhollah Khomeini. Ahmadinejad founded the Islamic Student Association at his university. By 1979, he became a representative of Office for Strengthening of Unity Between Universities and Theological Seminaries, later known as OSU. The OSU was organized by Ayatollah Mohammad Beheshti, one of Khomeini's top advisors. Members of the OSU central council, including Ahmadinejad, Ibrahim Asgharzadeh, Mohsen (Mahmoud) Mirdamadi, Mohsen Kadivar, Mohsen Aghajari, and Abbas Abdi, were regularly received by Khomeini himself. The OSU leadership played a key role in the crackdown on dissident university professors and students during the Islamic Cultural Revolution of 1980. Many professors and students who did not support Khomeini were arrested and executed.