Let's see if 28th can divide Pakistan in several administrative units.While Karachi generates the highest revenue for Pakistan undoubtedly, however I don’t think the numbers are as high as 65%.
There are deep rooted issues with the city. The powers that be wouldn’t want to lose their grip on Karachi nor on a federal level give Karachi more representation (transparent census of Karachi would translate into more representation which powers that be wouldn’t want).
That will be a blessing.



