No. Tamil movies rarely receive official Sinhala dubbing for theatrical release in Sri Lanka due to cost. Therefore, fan-made Maattrraan Sinhala sub files are the only way for Sinhala-only speakers to enjoy the film.
: The story follows conjoined twins, Vimalan and Akhilan, who discover a massive corporate conspiracy involving their father’s genetic research and a popular energy drink, "Energion". maattrraan sinhala sub
You can typically find the Sinhala subtitle files on major Sri Lankan subtitle hubs. Here are the most reliable sources: Vimalan and Akhilan
Harris Jayaraj (featuring the hit song "Rettai Kathire"). Genre: Action / Sci-Fi / Thriller. maattrraan sinhala sub