How was the revenue resources distributed among the ruling class through iqta system during sultanate period?

In the iqta system during the Sultanate period, revenue resources were distributed among the ruling class by granting them tax farms (iqtas) in exchange for military service. The holders of these iqtas collected taxes from the lands under their control and kept a portion as revenue, while sending the rest to the central government. This system helped strengthen the military and political control of the ruling class over various regions.