Dear fellow,
Do not think to much so that you may not waste your time to study. I bought the book i have been referring to from "MAKTABA-E-FARIDI" in main Urdu Bazar Karachi. it is a very well known book shop, u can also purchase books for other subjects from there.
For the books mentioned by Maha, these are very good but at the same time comparatively expensive and short supplied in market or perhaps since i was looking to optimize my budget for book & manage time for study (I am preoccupied with a 9-5 job) and was looking for "used books" that's y i would have find them short. Either could be the reason. If u search for new ones you may find them easily(It could be so).
so have a visit of Urdu bazaar and check it out.
@Maha,
Thanks for Ur appreciation. I dream to study at Officers Academy Lahore.
Thanks & Regards,
FASEEH