What were the steps taken by Alauddin Khilji to regulate prices ?

He fixed the cost of all commodities such as food grains, sugar and cooking oil. For this purpose, he set up three markets at Delhi — one market for food grains, the second for costly cloth, and the third for horses, slaves and cattle. Each market was put under the charge of a controller of market (Shahna). Very strict punishments were prescribed for cheating and under weighing the goods.

Alauddin Khilji introduced a number of important measures to get maximum revenue. He brought all the land of the empire into his direct control. He introduced the practice of measuring land and fixing the state share accordingly. He increased the land revenue from one-third to one-half and demanded it to be paid in cash and not kind. He also appointed special officers to collect land revenue.