公定価格
Alauddin Khalji taxation methods and increased taxes reduced agriculture output and the Sultanate witnessed massive inflation. In order to compensate for salaries that he had cut and fixed for Muslim officials and soldiers, Alauddin introduced price controls on all agriculture produce, goods, livestocks and slaves in the kingdom, as well as controls on where, how, and by whom these could be sold. Markets called "shahana-i-mandi" were created. Muslim merchants were granted exclusive permits and monopoly in these "mandi" to buy and resell at official prices. No one other than these merchants could buy from farmers or sell in cities. Alauddin deployed an extensive network of "Munhiyans" (spies, secret police) who would monitor the "mandi" and had the power to seize anyone trying to buy or sell anything at a price different than the official controlled prices. Those found violating these "mandi" rules were severely punished, such as by cutting out their flesh. Taxes collected in form of seized crops and grains were stored in sultanate's granaries. Over time, farmers quit farming for income and shifted to subsistence farming, the general food supply worsened in north India, shortages increased and Delhi Sultanate witnessed increasingly worse and extended periods of famines. The Sultan banned private storage of food by anyone. Rationing system was introduced by Alauddin as shortages multiplied; however, the nobility and his army were exempt from the per family quota-based food rationing system. During these famines, Khalji's sultanate granaries and wholesale "mandi" system with price controls ensured sufficient food for his army, court officials and the urban population in Delhi. Price controls instituted by Khalji reduced prices, but also lowered wages to a point where ordinary people did not benefit from the low prices. The price control system collapsed shortly after the death of Alauddin Khalji, with prices of various agriculture products and wages doubling to quadrupling within a few years.