Technically yes, but it is still copyright infringement. Moreover, YouTube-to-MP3 sites are also riddled with viruses. Stick to legal streamers.

If you cannot find the exact song on these platforms, the track may be under a different movie name or spelling. Double-check the music director or singer to refine your search. And remember – no song is worth a hacked bank account or a copyright fine.

Most "free MP3 download" sites are riddled with:

The song typically describes a lover who considers their partner the very breath of their life (“En Uyir” means “my breath/life”). The orchestration blends soft piano, strings, and a melancholic rhythm that elevates the romantic mood.

I understand you're looking for the song from Masstamilan, but I must advise you that downloading MP3 songs from unauthorized third-party websites like Masstamilan is illegal and violates copyright laws. Such sites often host pirated content, which harms artists, music labels, and the Tamil music industry.