Explanation: The Mauryas maintained a huge standing army and employed a large number of state officials.

• Since these soldiers and officials were paid in cash, the state taxes were not considered sufficient to meet all the needs of the state.
• Hence it had to undertake and regulate numerous economic activities to generate more and more resources. Taxes were levied in both cash and kind.
• The mainstay of the economy in this period was agriculture (animal husbandry and trade were other main occupations), and the land revenue was the main source of income.

Source: Tamil Nadu NCERT