Asela was the youngest of the many sons of Mutasiva and brother of previous monarchs Devanampiya Tissa, Uttiya and Mahasiva. Asela fought Sena and Guttika in a battle to re-establish Vijaya rule in 215 BC, but in 205 BC the kingdom of Anuradhapura was again invaded by a Tamil, a Prince of the Chola dynasty named Elara killing Asela.
Mahavansa/Chapter 21 tells...Two Damilas, Sena and Guttika, sons of a freighter who brought horses hither,' conquered the king Süratissa, at the head of a great army and reigned both (together) twenty-two years justly. But when Asela had overpowered them, the son of Mutasiva, the ninth among his brothers, born of the same mother, he ruled for ten years onward from that time in Anuradhapura.
A Damila of noble descent, named Elara, who came hither from the Chola-country to seize on the kingdom, ruled when he had overpowered king Asela, forty-four years, with even justice toward friend and foe, on occasions of disputes at law.