The Mughal empire was divided into several provinces known as Subas for smooth administration and revenue collection.
The head of a Suba was Subedar who was directly appointed by the emperor.
He was the head of the civil as well as military administration of each Suba.
There were similar departments in the province under a governor who was appointed by the emperor.
Each Suba was divided into a number of sarkars and these were further divided into Parganas and Mahals.
Subedar:
He was the provincial governor of the Suba and his essential duties were the maintenance of law and order , to ensure smooth and successful collection of revenue, and execution of royal decrees and regulations.
Diwan :
He headed the revenue department in a province.
He is appointed by the emperor.
He supervised the revenue collection in the subs and maintained accounts of all expenditures incurred in the form of salaries of the officials and subordinates in the Suba.
Daroga-i-Dak :
He was tasked with developing a communication network
through the empire.
The postal system ensured communication was sent to and fro to the far-flung areas of the empire.