To understand the gravity of this piece, one must look at Tamil cinema history. In 1999, the "Hero Introduction BGM" was dominated by classical instruments or orchestral fanfares. Yuvan threw the rulebook out the window.
Search for "Povellam Kettupar" to find various versions of the "Heyrathusurya-yuvan" bgm loop. yuvan shankar raja poovellam kettupar hey rathu bgm upd