Which sultan introduced the tradition of writing the name of the mint on the coins in India?

Which of the following Sultans introduced “Market Reforms”?

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

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

Which of the following Sultan had most numbers of slaves in his court?

Which Sultan introduced new Department “Aamir-e- Kohi”?