History · Medieval History - Iqta System

Analyse the evolution of the Iqta system in the Delhi Sultanate: 1. Under Iltutmish, an iqta was a transferable revenue assignment, distinct from hereditary or religious land grants. 2. To check the financial autonomy of muqtis, Balban appointed a separate financial officer called the Khwaja (Sahib-i-Diwan) in major iqtas. 3. Alauddin Khalji subjected the accounts of iqtadars to audit by the Diwan-i-Wizarat and strictly enforced the remittance of surplus revenue (fawazil). 4. Ghiyasuddin Tughlaq adopted a moderate policy regarding revenue demands on muqtis while protecting peasants from arbitrary enhancement. Which of the above statements are correct?