Since there isn't one "official" download site, you can find high-quality versions of this BGM through these popular community platforms:

The background music (BGM) for the song "Thamirabarani" from the 2014 Tamil film Nedunchalai was composed by

You can find these specific movie background scores (composed by C. Sathya for Nedunchalai and Yuvan Shankar Raja for Thamirabarani ) through these common methods:

: You can find various versions of the Thamirabarani Theme (29 seconds) and specific Nedunchalai Ringtones uploaded by users.