The Nanda Empire was a vast empire that governed in Magadha and Gangetic plains with an enormous geographical reach in 4th-century BCE northeastern India, with some accounts suggesting existence as far back as the 5th century BCE. The Nandas built on the successes of their Haryanka and Shaishunaga predecessors and instituted a more centralised administration. Ancient sources credit them with amassing great wealth, which was probably a result of the introduction of a new currency and taxation system.
Ancient texts also suggest that the Nandas were unpopular among their subjects because of their low-status birth, excessive taxation, and general misconduct. The last Nanda king Dhana Nanda was overthrown by Chandragupta Maurya, founder of the Maurya Empire.