Hi
I looked at the placemarks in some more detail and sorry to say that there are mistakes all over. Some of the mistakes are too much like marking Dow medical college which actually is quite a distance from your place mark. Here are few examples. I hope you see it as genuine effort to correct the mistakes and nothing personal.

24 51 52N 67 01 25 E marked Cinema infact it is Gul Plaza (shopping centre)(marked correctly by S.Shezad Khursheed.)

24 51 50 N 67 01 25 E Karachi Adventist(former 7 day) in fact it is at 24 51 59 N 67 01 40 E.

24 51 21 N 67 00 21 E Dow medical college, the correct co ordinates are 24 51 27 N 67 00 39 E( shaped like a reverse E). Another pointer(24 51 28 N 67 00 42 E) is the Khaliq dina Hall just for correct reference. The building you have marked as Dow medical college is just behind the city court, i dont remember correctly whether it is a part of the city court or not.

24 51 06N 67 01 08 E marked as Mosque by Xaidi and National Museum by Ramiqz1 is in fact neither. This building belongs to some government department(which i don't remember at the moment). The mosque is in the vicinity at 24 51 04 N 67 01 08 E. National Museum is at 24 51 09 N 67 01 04 E.

These are a few of the mistakes that i have looked at. Still other mistakes by other people are waiting to be corrected. I have tried my best to be as accurate as possible however if you think i am mistaken do say so with the correct co ordinates.

It is good to be enthusiastic but please confirm what you mark as people from other places get the wrong information.