Nizam , a shortened version of Nizam-ul-Mulk , meaning Administrator of the Realm , was the title of the native sovereigns of Hyderabad State , India , since 1719 . They belonged to the Asaf Jah dynasty . Nizam , a shortened version of Nizam-ul-Mulk , meaning Administrator of the Realm , was the title of the native sovereigns of Hyderabad State , India , since 1719 , belonging to the Asaf Jah dynasty .