You can also find the movie with Sinhala subtitles on YouTube. Many channels upload Tamil movies with Sinhala subtitles. You can search for "Sillunu Oru Kadhal movie with Sinhala subtitles" on YouTube and watch it for free.
Sillunu Oru Kaadhal (2006) is a widely available classic, finding official platforms that offer it with Sinhala subtitles sillunu oru kadhal movie with sinhala subtitles
For a Sinhala-speaking viewer, understanding the nuances of these relationships—the cultural expectations, the silent sacrifices, and the poetic Tamil dialogues—requires accurate subtitles. You can also find the movie with Sinhala