I have got 111 in GS 2. This has made quite a difference in my rank. GS 2 is quite a dicey paper but a certain strategy can yield very high marks as UPSC is probably looking for certain way of answering in this paper. One thing was sure that I prepared thoroughly for the exam. I have made comprehensive notes also about it. You can check some pages here but the notes cannot be uploaded fully here because it is a big file. So you can get them from a bookstore like Kumar book shop and others in ORN also starting on July 3rd or 4th. If still you can’t find them send me an email on manujjindalias@gmail.com