Yes FM is a Sinhala-leaning pop station — contemporary local pop radio rather than a full multilingual public suite. Use it for Sri Lankan pop presentation and music. Tamil and English services are different products and are not implied by this one listing.
These are the Sri Lanka stations currently wired into the 369.FM player. Names and short descriptions are editorial, written so you can tell news from pop before you press play.
Open the 369.FM homepage, search for a station name above, and use the bottom player. Streams belong to the broadcasters. If one fails, try another from the same country or tell us.