Vavuniya is a city in Vavuniya District in the Northern Province of Sri Lanka. The municipality is administered by an Municipal Council. The town has been known since ancient times, but being a heavily forested area, less than 100,000 people lived in the entire district before the Sri Lankan Civil War. The city is situated as a border town that divides the Tamil …Vavuniya is a city in Vavuniya District in the Northern Province of Sri Lanka. The municipality is administered by an Municipal Council. The town has been known since ancient times, but being a heavily forested area, less than 100,000 people lived in the entire district before the Sri Lankan Civil War. The city is situated as a border town that divides the Tamil and Sinhalese population. To the south of the city are the Sinhala cities and to the north are the Tamil cities. The city has a large population of Tamils, Muslims and a significant number of Sinhalese. In the early days, Vavuniya was known as Vanni due to the abundance of Vanni Trees. The Security Forces Headquarters - Wanni is located in Vavuniya.