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The sixteen Mahajanapadas and the rise of Magadha

The Mahajanapadas, Buddhism and Jainism · Part 1 / 3 · Fact-checked on 8 November 2026 · how we check

Written with AI from the sources listed at the bottom of this page, then fact-checked by a separate AI.

Sources for the sixth to fourth centuries BCE; the second urbanisation with iron, rice, Northern Black Polished Ware, punch-marked coins, routes and guilds; the sixteen Mahajanapadas and their capitals; Kosala, Vatsa, Avanti and Magadha; gana-sanghas and the Vajjis; why Magadha rose; the Haryanka, Shishunaga and Nanda dynasties; and the Persian and Macedonian invasions of the northwest.

By the sixth century BCE the villages of the Later Vedic period had grown into something new: states with fixed borders, capitals, armies and taxes, and towns full of traders and craftsmen. Buddhist texts remember sixteen large states of this time, each a mahajanapada, 'great janapada'. Within two centuries one of them, Magadha in south Bihar, swallowed its rivals and laid the base for India's first empire under the Mauryas. The same towns and courts heard the Buddha, Mahavira and other teachers who questioned Vedic ritual. This chapter has three parts. Part 1 covers the states, the economy that supported them, the rise of Magadha, and the Persian and Macedonian invasions of the northwest. Part 2 is on Buddhism and Part 3 on Jainism and the other new schools.

Our picture of this age is drawn from several kinds of evidence, and they do not always agree. The Anguttara Nikaya, a Buddhist text in Pali, gives the best-known list of sixteen states. The Jain Bhagavati Sutra also lists sixteen, but many of its names differ, a reminder that each tradition saw the map from its own region. The Puranas give lines of kings, the grammarian Panini mentions many janapadas and their people, and Greek writers who followed Alexander describe the northwest and a powerful kingdom on the Ganga. Archaeology adds what texts leave out: town walls, houses, drains, coins and pottery at sites such as Rajgir, Vaishali, Kaushambi and Ujjain. Because the Buddhist and Jain texts were written down centuries later, historians treat their dates and numbers with care.

Behind the new states lay a new economy, often called the second urbanisation, the first being the Harappan. Iron axes and ploughshares made it easier to clear the thick forest of the middle Ganga plain, and wet rice grown in its rich soil produced a surplus that could feed kings, soldiers, priests and town dwellers. Towns such as Rajagriha, Shravasti, Kaushambi, Varanasi and Ujjayini grew up as capitals and markets. Their typical luxury pottery is Northern Black Polished Ware, a thin, glossy black ware. Trade used the first Indian coins, punch-marked coins, mostly of silver, stamped with symbols such as the sun, animals and trees. Merchants travelled along the Uttarapatha, the northern route to Taxila, and the Dakshinapatha towards the south. Buddhist texts speak of the wealthy setthi, or merchant, the gahapati, a rich landholding householder, and of craftsmen organised in guilds called shreni.

The sixteen states stretched from Gandhara in the far northwest to Anga in the east. Most lay in the Ganga basin: Kashi, Kosala, Magadha, Anga, Vajji and Malla in the middle and lower plain, and Kuru, Panchala, Vatsa, Shurasena and Matsya further west. Avanti and Chedi lay in central India, Gandhara and Kamboja in the northwest, and Ashmaka, on the Godavari, was the only one south of the Vindhyas. Several states had two capitals because they were divided: Panchala had Ahichchhatra in the north and Kampilya in the south, and Avanti had Ujjayini and Mahishmati. Not all sixteen were kingdoms. Vajji and Malla were ruled by assemblies of clan heads, a form explained later in this part. The table lists the states with their capitals; matching a state with its capital is a favourite Prelims format.

Four kingdoms stood out and fought one another for supremacy. Kosala, with its capital at Shravasti, was ruled in the Buddha's time by Prasenajit and had absorbed Kashi. Vatsa, centred on Kaushambi on the Yamuna, was ruled by Udayana, a king remembered in later stories and plays. Avanti, under Chanda Pradyota at Ujjayini, controlled routes into central and western India and was feared even by Magadha. Magadha itself, under Bimbisara and then Ajatashatru, was the fourth. Their rivalry was handled by war, but also by marriage and diplomacy. Bimbisara married a Kosalan princess and received a Kashi village as dowry, and he sent his physician Jivaka to treat Pradyota. Over the next two centuries Magadha won this contest, absorbing Kosala, Vatsa and Avanti one after another.

Alongside the kingdoms were the gana-sangha states, where power belonged not to a single hereditary king but to a gathering of the chiefs of the leading clans. Each head could be called raja, and the assembly met in a hall known as the santhagara to discuss and decide matters of war, peace and justice. The best known was the Vajji confederacy, with its capital at Vaishali, in which the Lichchhavis were the leading clan; others were the Mallas of Kushinara and Pava and the Shakyas of Kapilavastu, the Buddha's own people. These states were not democracies in the modern sense: power lay with clan elites, and labourers and slaves had no voice. Buddhist tradition records that when Ajatashatru planned to attack the Vajjis, the Buddha said they would not decline so long as they met often, decided together and respected their elders and customs.

Why did Magadha, rather than Kosala or Avanti, win? Geography gave it a head start. It sat on the fertile alluvial plain of south Bihar, where rice yielded large surpluses that could be taxed. Rich iron ores lay close by in the hills to its south, so it could equip soldiers and farmers with iron. The Ganga, Son and Gandak rivers carried trade and protected it, and the forests nearby supplied elephants, which Magadha was among the first to use on a large scale in war. Its first capital, Rajagriha, was ringed by five hills and stone walls, and its later capital, Pataliputra, stood where the Son meets the Ganga, a natural water fort. Magadhan society was also less bound by Vedic orthodoxy. Finally, it had a line of ambitious and ruthless rulers who used war, marriage and intrigue to expand.

The first strong dynasty of Magadha was the Haryanka. Bimbisara, a contemporary of both the Buddha and Mahavira, built power through marriage as much as war: besides his Kosalan queen he married Chellana, a Lichchhavi princess, and a princess of Madra in the Punjab, which secured his borders. He conquered Anga in the east, gaining its port of Champa and the river trade of the lower Ganga. His son Ajatashatru seized the throne, by tradition killing his father, and pursued a far more aggressive policy. He fought Kosala and, after a long war, defeated the Vajji confederacy; Jain texts credit him with new war engines, the mahashilakantaka, which hurled stones, and the rathamusala, a chariot fitted with maces. He also fortified a village on the Ganga, Pataligrama. His successor Udayin built a new capital there, Pataliputra, at the meeting of the Ganga and the Son.

The Haryankas were followed by the Shishunaga dynasty, founded by Shishunaga, who is credited with destroying the power of Avanti and ending its long rivalry with Magadha; he is also said to have moved the capital for a time to Vaishali. His successor Kalashoka is remembered in Buddhist tradition as the patron of the second Buddhist council at Vaishali. Then came the Nandas, Magadha's most powerful rulers before the Mauryas. Their founder, Mahapadma Nanda, is called in the Puranas 'sarva-kshatrantaka', destroyer of all Kshatriyas, and ekarat, sole sovereign, which suggests he overthrew many older ruling houses. The Hathigumpha inscription of Kharavela later recalls a Nanda king's link with Kalinga. The Nandas were famous for their wealth, built up through efficient taxation, and for a huge army. The last of them, Dhana Nanda, was overthrown by Chandragupta Maurya with Chanakya's help, around 321 BCE.

While Magadha grew in the east, the northwest was split among small kingdoms and tribes, and it fell to a foreign empire. The Achaemenid Persian king Darius I, in the late sixth century BCE, added Gandhara and the Indus region, called Hindush, to his empire; his inscriptions name both among his lands. The Greek historian Herodotus reports that this Indian province paid the largest tribute of any, in gold dust, and Indian soldiers later served in Persian armies. Persian rule lasted until the empire fell to Alexander. It left lasting marks. The Kharoshthi script, written from right to left and used in the northwest for centuries, grew out of the Aramaic script used by Persian officials, and contact through Taxila linked Indian traders and scholars with western Asia.

After conquering the Persian empire, Alexander of Macedon crossed the Hindu Kush and in 326 BCE entered the Punjab. Ambhi, the ruler of Taxila, submitted and helped him. Porus, whose kingdom lay between the Jhelum and the Chenab, resisted, and the two armies met in the Battle of the Hydaspes, the Greek name for the Jhelum. Alexander won, but impressed by Porus he left him in charge of his kingdom. When the army reached the Beas, the Hyphasis, the exhausted soldiers, who had heard of the vast army of the Nanda king beyond, refused to go on. Alexander turned back down the Indus and left India in 325 BCE; he died at Babylon in 323 BCE. The invasion was brief, but it opened sea and land routes to the west, produced Greek accounts that help fix Indian dates, and weakened the small northwestern states, clearing the ground for Chandragupta Maurya.

Taken together, this part shows how a political map of many units became a map dominated by one. Iron, rice and trade created the surplus that let rulers keep armies and officials; towns, coins and guilds tied regions together; and of the sixteen mahajanapada states, Magadha used its geography, resources and ruthless kings to absorb its neighbours, from Anga under Bimbisara to the Vajjis under Ajatashatru, Avanti under Shishunaga and much of the north under the Nandas. The gana-sangha states, proud of their assemblies, were eventually swallowed by the kingdoms. In the northwest, Persian rule and Alexander's raid showed how divided the region was. The same towns, wealth and doubts about Vedic ritual form the setting for the teachers in Parts 2 and 3: the Buddha, Mahavira and their rivals.

Exam traps

• Two canonical texts each name sixteen great states, the Buddhist Anguttara Nikaya and the Jain Bhagavati Sutra, but their names differ; exam questions usually follow the Buddhist one.
• Of all sixteen, only Ashmaka (Assaka) lay beyond the Vindhyas, in the Godavari valley.
• Vajji and Malla were gana-sanghas, not monarchies; the Lichchhavis of Vaishali led the Vajji confederacy, and the Shakyas of Kapilavastu were the Buddha's clan.
• Gana-sanghas were rule by clan elites in an assembly, not democracies with votes for all.
• Do not credit Bimbisara with Pataliputra: Ajatashatru built a fort at the village of Pataligrama, and it was Udayin who made the new city his capital.
• Kosala's capital was Shravasti, Vatsa's Kaushambi and Avanti's Ujjayini; do not confuse Kaushambi with Kushinara, the Malla town.
• Kharoshthi, written right to left, grew from Aramaic in the Persian-ruled northwest; it is not derived from Brahmi.
• Battle of the Hydaspes (Jhelum), 326 BCE, Alexander against Porus; the army refused to cross the Beas (Hyphasis), not the Jhelum.

Recap

• Sixth century BCE: second urbanisation in the Ganga plain built on iron, rice, towns, NBPW and punch-marked coins.
• Sources: Anguttara Nikaya (sixteen Mahajanapadas), Bhagavati Sutra, Puranas, Panini, Greek writers, archaeology.
• Sixteen states from Gandhara to Anga; Ashmaka the only one south of the Vindhyas; Panchala and Avanti had two capitals.
• Big four: Kosala (Prasenajit), Vatsa (Udayana), Avanti (Pradyota), Magadha (Bimbisara, Ajatashatru).
• Gana-sanghas: Vajjis of Vaishali (Lichchhavis), Mallas, Shakyas; assembly in the santhagara.
• Magadha rose through fertile land, iron, rivers, elephants, strong capitals and ambitious kings.
• Haryanka: Bimbisara (Anga, marriage alliances), Ajatashatru (Kosala, Vajjis), Udayin (Pataliputra).
• Shishunaga destroyed Avanti; Kalashoka; Nandas (Mahapadma, Dhana Nanda) rich and powerful, ended c. 321 BCE.
• Persians under Darius I took Gandhara and Hindush; Kharoshthi from Aramaic. Alexander, 326 BCE: Hydaspes, halt at the Beas.

Practice questions

Sources

• Centre for Cultural Resources and Training (Ministry of Culture): material on ancient Indian history, the Mahajanapadas and the religions of the sixth century BCE — https://ccrtindia.gov.in
• Archaeological Survey of India: Indian Archaeology – A Review, excavation reports and site notes on Rajgir, Vaishali, Kaushambi, Ujjain and Kumrahar (Pataliputra) — https://asi.nic.in