actually no one here talked about North until you guys came along. Don't tell me you do not know how northerners treat southerners in north india?
As far as invasions are concerned. I f babr came to india and conquered the north in 1300-1400 then why do you think the mughals could never conquer the south?? It was because of the vijaynagar empire which for a two centuries kept the mughals and other muslim leaders out of the south. It was only with the advent of british that the south started going down.
Learn history before you talk. and don't talk as if you yourself fought all those wars. Stupid excuses for hating people!!!