If you're confused as to what is the beginning of khwabon khwabon that goes something like oma-khaziyaan-wahiyaanyaan-waahiyaaya-zeenyeve-hazayiyaan, it's doing exactly what it's supposed to do, fascinate and confuse you.
Well, the beginning of the song, which was the same in the Original Tamil and then Telugu version as well, is nothing but Gibberish. The words that might sound like Arabic or some close language do not exactly have any meaning and have been just put there to fascinate the listener.
And no doubt, they work Bang On!