You can find the best quality versions of "Na Kar Deewana" on these official platforms:

Another angle: Maybe the song is in Romanian, and "Roxen" is a typo for "Roxen," a singer. Checking for "Roxen" songs with "deewana" in the title. Roxen is Romanian, so "dewwana" isn't a Romanian word. Maybe the user mixed Romanian and another language. Not matching.