Sri Lanka experienced the first of many foreign invasions during the reign of Suratissa, who was defeated by two horse traders named Sena and Guttika from South India. The next invasion came immediately in 205 BCE by a Chola named Elara, who overthrew Asela and ruled the country for 44 years. Dutugamunu, the eldest son of the southern regional sub-king, Kavan Tissa, defeated Elara in the Battle of Vijithapura. During its two and a half millennia of existence, the Sinhala Kingdom was invaded at least eight times by neighbouring South Indian dynasties such as the Chola, Pandya, Chera, and Pallava. There also were incursions by the kingdoms of Kalinga (modern Odisha) and from the Malay Peninsula as well.