Kalinga Under the Nanda and Maurya Rule

Before the epoch-defining Kalinga War of 261 BCE, Kalinga had already experienced imperial rule under two of India’s greatest pre-Mauryan and Mauryan empires — the Nandas and the early Mauryas.

Kalinga Under the Nanda Dynasty (c. 345–322 BCE)

The Nanda dynasty of Magadha, under its powerful ruler Mahapadma Nanda, embarked on an aggressive policy of territorial expansion. The Hathigumpha inscription of Kharavela suggests that a Nanda king (possibly Mahapadma Nanda or one of his successors) conquered Kalinga and made it a province of the Magadhan empire. The Nandas are credited with constructing a canal in Kalinga that was later extended by Kharavela. The Arthashastra of Kautilya also references the elephants of Kalinga, indicating the region’s importance as a source of war elephants for the Magadhan army.

Kalinga as an Independent Kingdom

The collapse of the Nanda dynasty after Chandragupta Maurya’s rise to power (c. 322 BCE) created a power vacuum. It is likely that Kalinga regained its independence during this transitional period. The Mauryan empire under Chandragupta and his son Bindusara was preoccupied with consolidating its hold over northern and central India. Kalinga, protected by its dense forests and capable army, appears to have remained autonomous, developing its own political institutions and military strength. It emerged as a formidable regional power with a strong navy and control over lucrative maritime trade routes to Southeast Asia.

Mauryan Interests and the Road to War

By the time Ashoka ascended the Mauryan throne (c. 268 BCE), Kalinga had become a prosperous and well-defended kingdom. Ashoka, determined to complete the Mauryan imperial project, turned his attention southward. The political independence of Kalinga, its strategic location on the coast, and its control over trade routes were factors that made it an essential target for Mauryan expansion. The conflict that followed would become the most transformative war in Indian history, profoundly impacting both the conqueror and the conquered.

Kalinga’s period of independence between the Nanda and Maurya rule was thus a time of military and economic consolidation that made it a worthy adversary for Ashoka.