Assalam Alaikum,
I like to first extend my welcome to u in the forum, and hope to see loaads of contribution out of u.
Secondly, I think IR is just a very easy subject to digest, atleast in my case I am lovin it. Besides, it is very inter-related with Current Affirs, and will prove fruitful.
For Public Administration, plz refer to the link below to clear ur doubts:
http://www.cssforum.com.pk/showthrea...3502#post13502
Thanks.