While there is no single "full drama" link for the entire series in one video, you can watch individual episodes and high-quality clips through official channels: CitiHitz (YouTube): The official broadcaster
This channel holds most of the original content. You can find the Nana Kamare Playlist which includes various episodes and highlights. nana kamare full drama link
Nana Kamaraya - නාන කාමරය ටෙලි නාට්යය CitiHitzTV YouTube• 20 Sept 2019 While there is no single "full drama" link