What was the system of Mauryan administration?

The system of Mauran administration was based on these guidelines:

1. The king was all powerful.
2. A council of ministers, called the mantriparishad, advised him.
3. There were different departments, such as the treasury, security, revenue, industry, and so on.
4. Officials were appointed by the king to look after each department. Mahamatas looked after various aspects of administration.
5. The empire was divided into four provinces, with the capital at Pataliputra.
6. The expansion and defence of the empire was made possible by the largest standing army of its time.
7. A vast espionage (spy) system worked for both internal and external security. The spy system also kept the king informed about the conduct of the officials.