 The holders of the smaller "iqtas" were only exepcted to collect revenues from their regions, in exchange for providing military service to the emperor.To ensure that this "iqta" system remained bureaucratic - rather than feudal - in nature, Iltutmish transferred the "iqta" holders from one region to another, refused to grant them legal immunity, and discouraged localism in administration.Both free amirs as well as "bandagan-i-shamsi" (as opposed to "bandagan-i-khass" during Mu'izz ad-Din's times) were used by Iltutmish over an extended, long process involving rotation of the "iqtas" assigned to each noble every once in a while to ensure that there was no question of claims on a specific region by a specific noble.