I dont use such words but Kammi is refer to someone who belong to lower caste or someone who do low jobs generation after generation i.e choorhas, massali's, lohars, tarkhans, mochi's etc
Dhok : small village or town of some people/houses
yea true and there are also many aghani kids in child labour. I feel sad for them as well because they lose their innocence when they start working on roads, sabzi mundi, and go door to door for collecting all kinds of junks etc
there are also many Afghani who were empty hand when they came in pakistan but now own plaza and big shopping market even in posh areas of islamabad so either they are very poor or very rich when they establish their business but well its their hate for Pakistan or Pakistani which is annoying and rest we have nothing against them