Which medieval king of India introduced the ‘Iqta system’?

Which of the following Sultans introduced “Market Reforms”?

Who of the following was the first woman ruler of medieval India?

Which one of the following is NOT the characteristics of 'Iqta System'?

With reference to medieval Indian rulers, which one of the following statements is correct?

Which one of the following Sultans of Delhi introduced measures for improving the quality of fruits?