Explanation: The Sultan was assisted by a number of ministers who headed different departments and aided in administration. The post of Naib was the most powerful one.

• The Naib practically enjoyed all the powers of the Sultan and exercised general control over all the departments.
• Next to him, was the Wazir, who headed the finance department, called Diwan-i-Wizarat.
• The military department was called Diwan-i-Arz. It was headed by the Ariz-i-mumalik who was responsible for recruiting the soldiers and administering the military department.
• Diwan-i-Rasalat was the department of religious affairs, which dealt with pious foundations and gave stipends to deserving scholars and man of piety.

Source: Tamil Nadu NCERT