MagadhaMagadha, also called the Kingdom of Magadha or the Magadha Empire, was an ancient Indian kingdom and empire, and one of the sixteen Mahajanapadas of the Second Urbanization, based in southern Bihar in the eastern Ganges Plain, in Ancient India. Magadha was ruled by the Brihadratha dynasty, the Haryanka dynasty (544–413 BCE), the Shaishunaga dynasty (413–345 BCE), the Nanda dynasty (345–322 BCE), the Mauryan dynasty (322–184 BCE), the Shunga dynasty (184–73 BCE) and the Kanva dynasty (73–28 BCE) after which it broke up into multiple small states after being defeated by the Satavahana Empire of the Deccan.