The executive government is carried on under a cabinet composed of seven or eight vizirs (ministers), of whom one, besides holding a portfolio, is vizir azam, prime minister.
The vizirs are the ministers of the interior, foreign affairs, war, justice, finance, commerce, education, public works.
Until 1906 the shah was assisted in the task of government by the sadr azam (grand vizir), a number of vizirs, ministers or heads of departments somewhat on European lines, and a grand council of state, composed of some ministers and other members nominated by the shah himself as occasion required.
There were twenty-seven vizirs (ministers), but only some of them were consulted on affairs of state.
In addition to these twenty-seven vizirs with portfolios, there were some titulary vizirs at court, like Vizir i Huzur i Humayun (minister of the imperial presence), Vilir i makhsus (extraordinary minister), &c., and a number in the provinces assisting the governors in the same way as, the grand vizir assists the shah.