Dear earthlings,
i bought 2 books recently from URDU BAZAR karachi, they were named POLITICAL SCIENCE BOOK 1 & 2 respectively, both were by Muhammad Sohail Bhatti. i also have mazher's and chaudry's books but they have a lot of things missing, including grammatical mistakes. however the books by M S Bhatti are very well written, comprehensive, and covers everything in the CSS Pol science syllabus. i would recommend people to only buy these books for CSS. forget the rest.