Jaffna District
Jaffna District (Tamil: யாழ்ப்பாணம் மாவட்டம் Yāḻppāṇam Māvaṭṭam; Sinhalese: යාපනය දිස්ත්‍රික්කය yāpanaya distrikkaya) is one of the 25 districts of Sri Lanka, the second level administrative division of the country. The district is administered by a District Secretariat headed by a District Secretary (previously known as a Government Agent) appointed by the central government of Sri Lanka. The capital of the district is the city of Jaffna.

Between the 5th century BC and the 13th century AD present day Jaffna District was part of Rajarata. Jaffna District was thereafter part of the pre-colonial Jaffna kingdom. The district then came under Portuguese, Dutch and British control. In 1815 the British gained control of the entire island of Ceylon. They divided the island into three ethnic-based administrative structures: Low Country Sinhalese, Kandyan Sinhalese and Tamil. Jaffna District was part of the Tamil administration. In 1833, in accordance with the recommendations of the Colebrooke-Cameron Commission, the ethnic based administrative structures were unified into a single administration divided into five geographic provinces. Jaffna District, together with Mannar District and Vanni District, formed the new Northern Province. At the time that Ceylon gained independence, Jaffna was one of the three districts located in the Northern Province. Parts of the district were transferred to newly created Mullaitivu District in September 1978. Kilinochchi District was carved out of the southern part of Jaffna District in February 1984 (Source - www.wikipedia.org)
Kilinochchi District
Kilinochchi District (Tamil: கிளிநொச்சி மாவட்டம் Kiḷinocci Māvaṭṭam; Sinhalese: කිලිනොච්චි දිස්ත්‍රික්කය) is one of the 25 districts of Sri Lanka, the second level administrative division of the country. The district is administered by a District Secretariat headed by a District Secretary (previously known as a Government Agent) appointed by the central government of Sri Lanka. The capital of the district is the town of Kilinochchi.

Between 5th century BC and 13th century AD present day Kilinochchi District was part of Rajarata. Much of Kilinochchi District was thereafter part of the pre-colonial Jaffna kingdom. The district then came under Portuguese, Dutch and British control. In 1815 the British gained control of the entire island of Ceylon. They divided the island into three ethnic based administrative structures: Low Country Sinhalese, Kandyan Sinhalese and Tamil. The district, which was then part of Jaffna District, was part of the Tamil administration. In 1833, in accordance with the recommendations of the Colebrooke-Cameron Commission, the ethnic based administrative structures were unified into a single administration divided into five geographic provinces. Jaffna District, together with Mannar District and Vanni District, formed the new Northern Province (Source - www.wikipedia.org)
Mannar District
Mannar District (Tamil: மன்னார் மாவட்டம் Maṉṉār Māvaṭṭam; Sinhalese: මන්නාරම දිස්ත්‍රික්කය) is one of the 25 districts of Sri Lanka, the second level administrative division of the country. The district is administered by a District Secretariat headed by a District Secretary (previously known as a Government Agent) appointed by the central government of Sri Lanka. The capital of the district is the town of Mannar.

Between the 5th century BC and 13th century AD, what is now Mannar District was part of Rajarata. Parts Mannar District were thereafter part of the pre-colonial Jaffna kingdom. The district then came under Portuguese, Dutch and British control. In 1815 the British gained control of the entire island of Ceylon. They divided the island into three ethnic based administrative structures: Low Country Sinhalese, Kandyan Sinhalese and Tamil. The district was part of the Tamil administration. In 1833, in accordance with the recommendations of the Colebrooke-Cameron Commission, the ethnic based administrative structures were unified into a single administration divided into five geographic provinces. Mannar District, together with Jaffna District and Vanni District, formed the new Northern Province (Source - www.wikipedia.org)
Mullaitivu District
Mullaitivu District (Tamil: முல்லைத்தீவு மாவட்டம் Mullaittīvu Māvaṭṭam; Sinhalese: මුලතිවු දිස්ත්‍රික්කය) is one of the 25 districts of Sri Lanka, the second level administrative division of the country. The district is administered by a District Secretariat headed by a District Secretary (previously known as a Government Agent) appointed by the central government of Sri Lanka. The capital of the district is the town of Mullaitivu.

Parts of present day Mullaitivu District was part of the pre-colonial Jaffna kingdom. The district then came under Portuguese, Dutch and British control. In 1815 the British gained control of the entire island of Ceylon. They divided the island into three ethnic based administrative structures: Low Country Sinhalese, Kandyan Sinhalese and Tamil. The district, which was then part of Vanni District, was part of the Tamil administration. In 1833, in accordance with the recommendations of the Colebrooke-Cameron Commission, the ethnic based administrative structures were unified into a single administration divided into five geographic provinces. Vanni District, together with Jaffna District and Mannar District, formed the new Northern Province.

Vanni District was later renamed Mullaitivu District and then Vavuniya District. The district was colonised in the second half of the 18th century by residents from Jaffna Peninsula, primarily from Alaveddy, Udupiddy and Navaly. At the time that Ceylon gained independence, Vavuniya was one of the three districts located in the Northern Province. Mullaitivu District was carved out of the northern part of Vavuniya District together with parts of the then Jaffna District, Mannar District and Trincomalee District in September 1978 (Source - www.wikipedia.org)
Vavuniya District
Vavuniya District (Tamil: வவுனியா மாவட்டம் Vavuṉiyā Māvaṭṭam; Sinhalese: වවුනියා දිස්ත්‍රික්කය) is one of the 25 districts of Sri Lanka, the second level administrative division of the country. The district is administered by a District Secretariat headed by a District Secretary (previously known as a Government Agent) appointed by the central government of Sri Lanka. The capital of the district is the city of Vavuniya.

Between 5th century BC and 13th century AD present day Vavuniya District was part of Rajarata. Vavuniya District was thereafter ruled by Vanniar Chieftains who paid tribute to the pre-colonial Jaffna kingdom. The district then came under Portuguese, Dutch and British control. In 1815 the British gained control of the entire island of Ceylon. They divided the island into three ethnic based administrative structures: Low Country Sinhalese, Kandyan Sinhalese and Tamil. The district, which was then called Vanni District, was part of the Tamil administration. In 1833, in accordance with the recommendations of the Colebrooke-Cameron Commission, the ethnic based administrative structures were unified into a single administration divided into five geographic provinces. Vanni District, together with Jaffna District and Mannar District, formed the new Northern Province (Source - www.wikipedia.org)