Why were officials appointed to supervise these occupational groups?
Officials were appointed to supervise occupational groups such as woodcutters, carpenters, blacksmiths, and miners for several important reasons.
First, these officials were responsible for collecting taxes from these occupational groups, which was essential for generating revenue for the state. Rulers were advised to collect taxes and tribute from cultivators, traders and artisans.
Second, these occupations were closely connected with land, and questions of control over land were crucial for the empire. The officials measured land and ensured proper administration of land-related resources.
Third, supervision was necessary for maintaining infrastructure essential for the empire's existence. Officials superintended rivers, inspected sluices for water distribution, and managed resources needed for communication and military activities.
Explanation
The answer draws directly from Megasthenes' account in the textbook which describes how officials superintended occupations connected with land (woodcutters, carpenters, blacksmiths, miners) and collected taxes. The context also emphasizes that control over land was crucial, and that infrastructure (rivers, canals) was vital for the empire's existence. The tax collection function is further supported by the reference to Dharmasutras advising rulers to collect taxes from various occupational groups.