Why did Magadha become so powerful

The Nanda dynasty

After the Haryaṅkas, according to the Buddhist histories of Sri Lanka, the Śiśunāgas - completely unknown to the Jainas - ruled in Magadha, to whom the Purāṇas, the mythological treatises of Hinduism, - incorrectly - ascribed Bimbisāra and his family. The Śiśunāgas continued the expansion policy of their predecessors. So Avanti was finally annexed to Magadha by them. After only 70 years they were succeeded by the Nandas as rulers of Magadha. Whatever the sources represent the end of their power and the beginning of the Nandas, they all agree that Mahāpadma Nanda, the founder of the dynasty of the same name, was a man of low descent. His father - according to others even himself - is said to have been a barber who had an illegitimate relationship with the king's wife, his mother a mean one. The Alexander historians Diodor (os), Plutarch and Curtius Rufus know something very similar - the Alexander story Arrian (V 25,1), Pliny (6,23,68) and the (unknown) author of the Epitome Mettensis leave none of it - to report on Xandrames (Ξανδράμης), the "King of the Prasioi". Phegeus - so-called authors -, an Indian tribal prince who ruled the Beas, told Alexander the great about this while he was standing on that river. Xandrames, a man of dubious origin, ruled the Prasioi across the Ganges and had a huge armed force - a message that Porus, another Indian ruler, was able to confirm. When Alexander then wanted to cross the Beas and advance into the valley of the Ganges in order to conquer the kingdom of Xandrames, his army revolted, which forced him to turn back. Since in the Prasioi, the "Eastern" (prācya), the Nandas are easy to recognize, that Xandrames must be one of the Nanda kings. Since it is the year 326 BC When the mutiny at the Beas Alexander's India campaign ended, it can hardly have been Mahāpadma Nanda. For only six years later the mighty Nanda empire, which, according to the Khāravela inscription, extended from Hāthīgumphā to Orissa, collapsed. But since the Nanda dynasty, at least according to the Purāṇas, comprised only two generations - allegedly Mahāpadma Nanda and his eight sons (see App. 1) - Xandrames will have been a son of Mahāpadma. In this case, Mahāpadma Nanda himself can be dated to about 350 BC. To be dated.