Understanding the Role of 'Agronomai' in the Mauryan Age 

The Mauryan Empire, known for its centralized and efficient administration, relied on various officials to manage its vast territory. These officials were responsible for different aspects of governance, from revenue collection to infrastructure development. The question asks about the specific field associated with the official known as 'Agronomai' during this period.

Historical accounts, particularly those from Megasthenes in his work 'Indica', provide valuable insights into the Mauryan administration and the roles of different officials. Among these, the 'Agronomai' are mentioned as having significant responsibilities.

Duties and Functions of Agronomai

According to historical sources, the 'Agronomai' were officials primarily concerned with the administration of rural areas. Their duties were multifaceted and included:

• Supervising irrigation systems.
• Measuring land and overseeing land distribution.
• Ensuring fair weights and measures in their jurisdiction.
• Monitoring tax collection related to agricultural produce.
• Constructing and maintaining roads.
• Setting up signposts and milestones along roads.

While their role touched upon administrative management, revenue, and indirectly weights and measures, a significant and distinct responsibility attributed to them was related to public works, particularly road infrastructure.

Analyzing the Options

Let's examine how the functions of 'Agronomai' align with the given options:

1. Weight and measurement: While 'Agronomai' did oversee weights and measures in their areas, this was one among several duties, not their primary or sole focus. There might have been other officials more specifically dedicated to this across the empire.
2. Administrative management: This is a very broad category. 'Agronomai' were indeed part of the administrative management, but their role was more specific to rural and infrastructure development than general administration.
3. Construction of roads: Historical texts like Megasthenes explicitly mention the 'Agronomai' role in managing roads, including their construction and maintenance, and the placement of milestones. This was a direct and significant part of their responsibility.
4. Revenue management: 'Agronomai' were involved in matters related to agricultural revenue, but primary revenue collection and management might have been handled by other specific officials or departments higher up in the hierarchy or specifically designated for tax collection.

Considering the specific duties mentioned in historical sources, the construction and maintenance of roads stand out as a key function directly associated with the 'Agronomai'.

Therefore, based on historical evidence regarding the Mauryan administration and the duties of the 'Agronomai', their function was most directly related to the construction of roads among the given options.

Revision Table: Mauryan Agronomai Duties

Additional Information: Mauryan Administration Officials

The Mauryan administration was highly organized. Besides 'Agronomai', other important officials included:

• Samaharta: Chief revenue collector.
• Sannidhata: Treasurer, responsible for the state treasury and storehouses.
• Rajukas: Officials primarily responsible for justice and revenue administration in districts.
• Yuktas: Subordinate officials assisting Rajukas.
• Gopa: Responsible for accounting villages, collecting taxes, and maintaining records within a specific village group.
• Sthanika: Tax collector at the district level.

This complex structure ensured efficient governance and resource management across the vast Mauryan Empire.