Explanation: Iltutmish organized turkan-i-chahalgani, a new class of ruling elite of forty powerful military leaders, the Forty.

• These were Turkish amirs (nobles) who advised and helped the Sultan in administering the Sultanate.
• After the death of Iltutmish, this group assumed great power in its hands.
• For a few years they decided on the selection of Sultans one after the other. The group was finally eliminated by Balban.

Source: Poonam Dahiya