Q. Who established Diwan-i-Mustakharaj?
(a) Qutubuddin Aibak
(b) Razia Sultana
(c) Balban
(d) Alauddin Khilji
Ans: (d) Alauddin Khilji
Explanation: The establishment of Diwan-i-Mustakharaj is attributed to Alauddin Khilji.
Diwan-i-Mustakharaj, also known as the Department of Exchequer, was a financial institution created during the reign of Alauddin Khilji, who ruled the Delhi Sultanate from 1296 to 1316. This department was responsible for the assessment and collection of revenue, as well as the management of state finances.
Alauddin Khilji implemented various administrative and economic reforms, and the establishment of Diwan-i-Mustakharaj was one of them. It played a crucial role in ensuring efficient revenue collection, preventing corruption, and strengthening the financial stability of the kingdom.
Therefore, the correct answer is (d) Alauddin Khilji.