Chandragupta Maurya overthrows the Nanda regime in Magadha and establishes the Mauryan imperial dynasty, governing from Pataliputra (near modern Patna) as the empire’s political center.
After conflict with Seleucus I Nicator, Chandragupta reaches a treaty that secures Mauryan control in the northwest and enables sustained consolidation from the imperial core at Pataliputra.
Bindusara takes the throne, maintaining Pataliputra’s role as the administrative capital while the empire continues to function as a centralized imperial state.
Following Bindusara’s death, Ashoka ultimately secures the imperial throne at Pataliputra, marking the start of the best-documented Mauryan reign.
Ashoka’s conquest of Kalinga becomes the empire’s last major territorial addition; later traditions link the war’s brutality to his turn toward governance emphasizing dharma.
A major council of Buddhist monastics is traditionally dated to Ashoka’s reign at Pataliputra (often placed around 250–247 BCE). Accounts differ across traditions, but it is commonly associated with efforts to regulate monastic discipline and clarify doctrinal disputes.
Ashoka commissions inscriptions on finely worked stone pillars across the empire to broadcast ethical and administrative guidance; these edicts are among the earliest substantial deciphered texts from ancient India and reflect governance emanating from the Pataliputra court.
After Ashoka’s death, the Mauryan Empire begins to contract amid pressures including invasions, defections, and contested successions—weakening the ability of Pataliputra to project authority across the subcontinent.
Archaeological work at Kumrahar (Patna) documents remains of a hypostyle “80-pillared hall” associated with Mauryan-era monumental architecture at/near ancient Pataliputra; interpretation varies (palatial/assembly/monastic functions are debated).
By the reign of Brihadratha, Mauryan power is substantially reduced compared with earlier emperors, reflecting the continuing loss of cohesion centered on Pataliputra.
The Mauryan dynasty ends when the general Pushyamitra assassinates Brihadratha and takes power, a transition that reshapes North Indian politics while Pataliputra remains a key seat of rule.
Pataliputra under the Mauryan Empire (c. 322–185 BCE)
