The Magadhan Dynasties

Memory hook — six dynasties of Magadha in order: Haryanka → Shishunaga → Nanda → Maurya → Shunga → Kanva — "Happy Shishu Nags Munch Sweet Kheer" (a happy baby, teething/fussing, munches sweet rice pudding). Each word's first letter locks the sequence: H-S-N-M-S-K.

Practice Recall: Name Magadha's six ruling dynasties in chronological order, from the Buddha's contemporary Bimbisara down to the last pre-Shunga power, before reading on. (Answer: Haryanka → Shishunaga → Nanda → Maurya → Shunga → Kanva.)

The Mauryan Empire (322–185 BCE)

India's first pan-subcontinental empire, and the single most heavily tested block in ancient Indian history.

Chandragupta Maurya (322–297 BCE): With the strategic guidance of his mentor Chanakya/Kautilya (traditionally identified as the author of the Arthashastra, a treatise on statecraft, economics, war, and espionage), Chandragupta overthrew the Nanda dynasty and later defeated Seleucus I Nicator (Alexander's successor in the east) in 305 BCE, gaining the territories of Afghanistan/Baluchistan in exchange for 500 war elephants. The Greek ambassador Megasthenes, sent by Seleucus, lived at the Mauryan court and wrote the Indica, our best contemporary Greek account of Mauryan administration and society. Chandragupta reportedly abdicated late in life, turned Jain ascetic, and died at Shravanabelagola (Karnataka) by sallekhana (ritual fasting).

Bindusara (297–273 BCE): Called Amitraghata ("slayer of enemies") by the Greeks; extended the empire further into the Deccan; maintained diplomatic contact with the Hellenistic world (received an ambassador, Deimachus, from the Seleucid court).

Ashoka (268–232 BCE): The empire's peak and its most famous ruler.

• The Kalinga War (261 BCE), fought to annex the region roughly corresponding to modern coastal Odisha, was won at enormous human cost — Ashoka's own Rock Edict XIII records his remorse and describes the war's carnage in his own words, an almost unique instance of a conqueror's self-critique inscribed in stone.
• Post-Kalinga, Ashoka adopted Dhamma — not a religious conversion in the narrow sense, but a public ethic of non-violence, tolerance, respect for elders, and welfare (planting trees, digging wells, building rest houses) that he propagated via edicts inscribed on rocks and pillars across the empire, written mostly in Prakrit using the Brahmi script (Kharosthi in the northwest, Greek/Aramaic near Afghanistan).
• He convened the Third Buddhist Council at Pataliputra and sent Buddhist missions abroad — his son Mahinda and daughter Sanghamitra are credited with taking Buddhism to Sri Lanka.
• Administrative machinery: the empire was divided into provinces under royal princes/governors (e.g., Taxila, Ujjain, Tosali, Suvarnagiri), officials called Dhamma Mahamatras were appointed specifically to oversee the moral welfare programme, and a network of spies (as prescribed in the Arthashastra tradition) kept the centre informed.
• The Lion Capital of Sarnath, erected by Ashoka, is today India's national emblem, and the Ashoka Chakra on it appears on the national flag.

Mauryan administration (general, testable across rulers): a highly centralised bureaucracy with the king at the apex, assisted by a council of ministers (Mantriparishad); the empire divided into provinces, districts, and villages, each with graded officials; a state-controlled economy with departments for agriculture, mining, trade, and even a bureau of prostitution (per the Arthashastra); espionage as an institutionalised arm of governance.

Decline: weak successors after Ashoka, financial strain from the vast bureaucracy and army, and possibly a Brahmanical backlash against state-sponsored Buddhism. The last Maurya, Brihadratha, was assassinated by his own commander-in-chief, Pushyamitra Shunga, in 185 BCE.

After the Mauryas

Exam favourite: Ashoka's Kalinga War is the hinge of ancient Indian history — a victorious king who renounced future conquest and adopted Dhamma as state policy, then used a subcontinent-wide inscriptional programme (unprecedented for its time anywhere in the world) to broadcast it.