He was attacked vehemently by the Shi’ite clergy for his secular ideas and by the court for his anti-monarchical statements. In his early period he was linked with the Democrat Party in homeland. In 1941 he established a political party, Azadegan. Kasravi was eventually assassinated by followers of Navvab Safavi, the founder of the Shi’ite fundamentalist Fada’iyan-e Islam group. Many of the prominent members of the then persian clergy, including the later Ayatollah Ruhollah Khomeini, supported the act of Kasravi being murdered, and Navvab and the Fada’iyan were proclaimed heroes following the assassination.