Chandragupta Maurya established the Mauryan Empire with its capital at Pataliputra, creating the administrative base from which state information, orders, and intelligence could be transmitted across a rapidly expanding territory.
The Arthashastra (attributed to Kautilya/Chanakya) articulates state administration that includes structured intelligence collection and the use of agents and messengers—an important textual foundation for understanding Mauryan-era communications practices.
Ashoka’s reign provides the richest direct evidence for Mauryan communications: his proclamations survive as dated inscriptions on rocks and pillars distributed across the empire and its frontiers.
An early Ashokan edict carved near Kandahar (in Greek and Aramaic) shows the imperial communication strategy of issuing state messages in locally understood languages at the empire’s northwestern edge.
An Ashokan Aramaic inscription at Taxila illustrates Mauryan use of regional administrative-linguistic conventions for official messaging in the northwest, supporting communication across culturally diverse provinces.
Ashoka’s Minor Rock Edicts—among the earliest Indian-language edicts in Brahmi—demonstrate a program of disseminating royal policy beyond core centers, using durable inscriptions as a broadcast medium.
The Major Rock Edicts represent a more systematic, empire-wide set of proclamations placed at prominent locations, helping coordinate governance and public communication across distant regions.
Ashoka describes public works associated with movement and provisioning (e.g., medical facilities, wells, and rest houses), measures that also supported long-distance travel and the practical circulation of officials and information.
Ashoka created a cadre of dhamma-mahamattas (officers of dhamma), indicating formal channels for communicating royal ethical-administrative policy and receiving information about conditions among subjects.
Rock Edict VI orders that reporters deliver the people’s affairs to the king “at any time,” reflecting an emphasis on fast administrative communication and continuous information flow to the center.
Late in Ashoka’s reign, major pillar edicts were inscribed on monolithic columns, providing prominent, repeatable, and highly visible media for imperial directives and norms—another layer of the communications network.
With the fall of the Mauryan dynasty, the centrally coordinated administrative structures that supported imperial-scale communications (official tours, reporting chains, and inscription programs) fragmented into successor polities.
Mauryan postal system and communications network (c. 321–185 BCE)
