Arise!

The Lyrics and the Music. Awesome!

aayiram sooriyan suttaalum (Thousand Suns might explode at once)
karunaiyin varmam karainthalum ( Mercy may cease to exist)
vaan varai adharmam aandalum ( The evil might become very powerful)
manithan anbai maranthaalum ( A human may forget the emotion of love)
valiyaal un uyir theinthaalum ( Pain would eat you slowly)
un kaadhal azhiyaadhey ( But your love will never leave you)!

Ok, Edited to add this - not the music, the picturization of the song is top notch. And, yes, Parvathy's look in the song - gorgeous is an understatement!

Here's a video of her in a Malayalam movie called "Charlie". Good song.