Yeah I know his Ichraah shop is still there but now on main road. That paratha wala makes simple paratha, aalo kay parathay and anda paratha well the anda paratha is quite delicious. He does not make parathas like those in mazang, but those mazang people were not curteous enough.
Regarding malwari paratha and BBQ try karachi BBQ in H-Block Defence, I have found him to be best in BBQ.
Regarding Gosha-e-shirin well in that area most of the shops have the same seating arrangement as him so it is suited to the area, regarding oil well believe me I have made some foreigners to eat those purees and nothing happened to them. Also there is a cost factor a puree of gosha-e-shirin cost 15 rs and that of chach bassa costs 25 rs, so difference is here.