Explanation:

The Haryanka dynasty, founded in 684 BC, ruled Magadha from the city of Rajgriha (modern Rajgir). The two well-known kings from this dynasty were Bimbisara and his son Ajatashatru, who imprisoned his father to ascend the throne. Ajatashatru founded the city of Pataliputra which later became the capital of Magadha. He declared war and conquered the Vajji. The Haryanka dynasty was followed by the Shishunaga dynasty. Later, the Nanda Dynasty ruled a vast tract stretching from Bengal to Punjab.