Janapadas after the Kurus

The Kuru Kingdom and Its Decline

The Kurus, centered on Hastinapura in the upper Ganga-Yamuna doab, were the dominant power of the later Vedic period and the setting of the Mahabharata's dynastic conflict. Puranic king-lists trace a long line of Kuru rulers after the war described in the epic, including Parikshit and his son Janamejaya, down to a king named Kshemaka, after whom the genealogical record grows vague and the Kuru line effectively disappears from the historical narrative. A separate Puranic tradition holds that a great flood destroyed Hastinapura during the reign of King Nichakshu, forcing the Kurus to relocate their capital downriver to Kaushambi, on the Yamuna — a detail archaeologists have connected to a flood layer found at the Hastinapura excavation site, dated by its excavators to roughly the 8th century BCE. By the time of the Buddha, traditionally placed in the 6th–5th century BCE, Kuru survived only as one of sixteen listed great powers, no longer the leading one.

The Sixteen Mahajanapadas

Early Buddhist and Jain canonical texts — most systematically the Anguttara Nikaya of the Pali canon, with a closely parallel list in the Jain Bhagavati Sutra — enumerate sixteen mahajanapadas, "great realms," current in the Buddha's lifetime: Anga, Magadha, Kashi, Kosala, Vajji (a confederacy of clans, including the Licchavis, governed as a republic from Vaishali), Malla (also republican), Chedi, Vatsa (capital Kaushambi), Kuru (capital by then Indraprastha, near modern Delhi), Panchala (capital Ahichhatra or Kampilya), Matsya (capital Viratanagara), Shurasena (capital Mathura), Ashmaka (on the Godavari, the only mahajanapada south of the Vindhyas), Avanti (capital Ujjaini), Gandhara (capital Taxila, in the northwest), and Kamboja (further northwest, beyond Gandhara). Not all were monarchies: Vajji and Malla are described as gana-sanghas, oligarchic or republican confederacies governed by assemblies of clan heads rather than a single king, and are cited by some historians as early evidence of non-monarchical political organization in South Asia.

Absorption of Kuru Territory

The former Kuru heartland was absorbed piecemeal by its neighbors rather than conquered outright by any single successor state. Panchala, immediately to the east, took over much of the core Kuru territory; the Vatsa kingdom, centered on Kaushambi, extended its influence over the western portion; and Shurasena, around Mathura, retained independence somewhat longer than its neighbors. None of these transitions is precisely dated; the process is inferred largely from the shifting political geography reflected in Buddhist and Jain texts of the 6th–5th centuries BCE rather than from any single recorded conquest.

The Rise of Magadha

The mahajanapada system as a whole was ended by the rise of Magadha, in the eastern Ganga plain, over roughly two centuries. Under the Haryanka dynasty, King Bimbisara (traditionally r. c. 543–491 BCE) expanded Magadha by annexing Anga and building alliances through marriage; his son Ajatashatru continued the expansion, annexing Kashi, absorbing Kosala, and defeating the Vajji confederacy after a long war traditionally said to have lasted sixteen years, ending the independence of one of the period's two republican powers. The Haryankas were succeeded by the Shishunaga dynasty and then, in the mid-4th century BCE, by the Nanda dynasty, whose founder, Mahapadma Nanda, is described in Puranic sources with an epithet meaning "destroyer of all kshatriyas" and credited with bringing most of the remaining mahajanapadas under Magadhan control. The last Nanda king, Dhana Nanda, was overthrown around 321 BCE by Chandragupta Maurya, guided by his advisor Chanakya (Kautilya), traditionally credited as the author of the Arthashastra, a treatise on statecraft. The resulting Maurya Empire, extended to its greatest reach under Chandragupta's grandson Ashoka (r. c. 268–232 BCE), absorbed the last of the mahajanapadas and ended the era of the Janapadas as independent polities in North India.