Come on. This is not Afghan and Pakistani dress,kamiz is Arabic and shalwar is Persian, since Pakistan was closer and more easily conquered by them so it impacted Pakistanis early. Now, in modern times tribal clothes fit for hard activity but yes in a way here Indians were conquered by Pakistanis.Sorry correction. "Sh" ..... Shalwar.
*This form of dress is sourced from Afghanistan and neighbouring region of Pakistan from whence it spread east. Of late it has been take up with gusto all over South Asia and displaced the traditional Indian staple the Saree. This is evident in India where older images will show everybody wearing Saree and men a loin cloth but now Shalwar has replaced these traditional Indian dress.