Article snapshot taken from Wikipedia with creative commons attribution-sharealike license.
Give it a read and then ask your questions in the chat.
We can research this topic together.
The A 12 passes through Karuwalagaswewa, Palugassegama, Kala Oya, Nochchiyagama, Maha Bulankulama, Anuradhapura, Mihintale, Tammanewa, Kahatagasdigiliya, Morakewa, Horowapotana, Morawewa (Muthalikulam), Pankulam and Kanniya to reach Trincomallee.