Re: A Question for Urdu speakers..
sadiyah, i know all UP walay arent like that, Im a UP wala, and my potty mouth is very enviable indeed. rahi baat bangladeshis ki, I dont think they’re a large enough community, they sorta get coupled with the “shifty” biharis. To give you an example, everyone knows now that Altaf Hussain is a bihari right, some time ago his most vehement supporters would deny he is one, and would say that its an ilzam spread by ISI. we used to find it funny, indeed that sheyr was recited by my abbu to two people (who turned out to be bihari, the aap janab that ensued after that was horrific 
).. but yes once we got bihari relatives of our own we saw its a pretty bad problem for them.
LI its true sadly. but as sadiyah said, its getting better now, inter ethnicity marriages are quite common in karachi.