If you intend to do extensive traveling within the country when you travel to Sri Lanka, it would be worth your while to be informed of the layout of the island in detail.
When you travel to Sri Lanka is divided into 9 provinces, each of which is administered by a directly elected provincial council, and 25 districts. Each of these districts are further subdivided into divisional secretariats, which are, in turn, divided in to Grama Sevaka divisions.
The following table the provinces, together with its main districts which you fill find when you travel to Sri Lanka:
Province Capital Districts
Province
Capital
Districts
Central
Kandy
Kandy, Matale, Nuwara Eliya
North Central
Anuradhapura
Anuradhapura, Polonnaruwa
Northern
Jaffna
Jaffna, Kilinochchi, Mannar, Vavuniya, Mullativu, Alambil
Eastern
Trincomalee
Ampara, Batticaloa, Trincomalee
North Western
Kurunegala
Kurunagala, Puttalam
Southern
Galle
Galle, Hambanthota, Mathara
Uva
Badulla
Badulla, Monaragala
Sabaragamuwa
Ratnapura
Kegalle, Rathnapura
Western
Colombo
Colombo, Gampaha, Kaluthara