Mohammed Ali Abtahi visiting Mehdi Karroubi during House Arrest
Mehdi Karroubi is born on 26 September 1937 into a Shia clerical family in Aligudarz, a city in the western part of Lorestan province. He has a brother, Hassan. Karroubi studied theology and Islamic studies at seminaries in Qom. He studied under notable figures such as Hossein-Ali Montazeri and Ruhollah Khomeini. Karroubi was promoted to Mujtahid on the recommendation of the Grand Ayatollah Yousef Sanei and others. He also studied theology and law at Tehran University. In 1962, he became a lawyer in economy, dealing with the investments of prominent businessmen.