Sahasrārjuna terrorizes the whole world- he stops the flow of the river
Narmadā, defeats and incarcerates the demon-king Rāvaṇa(who is later released on the request of Pulastya), and takes over the Svarga("heaven") and the offerings of the Yajña("fire sacrifice") from the Devatās"gods.
The first nine cantos describe the incarnation of Paraśurāma, his learning from the god Śiva on mount Kailāsa, the execution of his father's command to kill his mother and three brothers and
their subsequent resurrection, his battle with the thousand-armed king Sahasrārjuna, the extermination of Kṣatriya("warrior") race
21 times from the earth by him, and his confrontation with Śiva's son and the god of wisdom, Gaṇeśa.