Explanation:

Alauddin Khilji had the largest well equipped standing army. According to Firishta, there were 475,000 cavalrymen in his army. The historian, Ziauddin Barani, informs us that the annual salary of a trained armed soldier with one horse was 243 tankas and with two horses 321 tankas. The soldiers were paid in cash. He was the first among the Delhi sultans to introduce dagh (branding of horses) and Chehra (maintain the descriptive roll of each soldier) so as to avoid fraud in the system. To keep the army satisfied with their salary, he started a strict price control mechanism which came to be known as the market reform system.