thankyou Siddique for your reply
i already confused b/w CS And IR . I am BSCS graduate . But due to shortage of time i want to opt those subjects which interrelate with Compulsory or other subjects, but i did not any background regarding IR. If i go For CS i have to prepared 12 books. which i already studied during my education, i have to revise again all the concepts and its much time consuming. and one thing more i have not much coding skills.
Kindly guide me which one is better me.

LNaqvi Thank You for Replying,
I saw past papers of computer science but there are coding questions. Every paper have 1 to 2 questions of code. i am not good with my coding skills. but i have good concepts regarding this subject.