You can watch the movie on Prime Video and other major VOD platforms, though audio options are typically limited to Thai or English .
Ong Bak 3 Tamil Dubbed: A Martial Arts Epic of Survival and Spirit Ong Bak 3 Tamil Dubbed
Other that have confirmed official Tamil dubs. A list of similar martial arts films available in Tamil. You can watch the movie on Prime Video
Near death, Tien is rescued by the villagers of Kana Khone and guided by Master Bua. He undergoes a journey of physical and spiritual rehabilitation, learning to find inner peace through meditation and traditional "Nathayut" dance. Ong Bak 3 Tamil Dubbed