I can make USA state level unemployment graph with the following code.
library(XML) library(ggplot2) library(plyr) library(maps) unemp <- readHTMLTable
Have you tried http://www.diva-gis.org/gdata? That should give you Shapefiles with state/district boundaries for Pakistan.
The maptools package has functions that let you read and convert Shapefiles to a dataframe that can be used to lay out the boundary polygons.