Here are some of my notes -
10. Ethics - I never read too much on this paper. I referred only a case study book by Donald Menzel. Whatever definitions etc appeared in this book, I tried to cover them. I never referred to any other source (including various school of philosophies) as to me this paper is more about your logical thinking and problem solving approach rather than you knowing some theoretical frameworks. Just think on your own feet in this paper.
11. Polity - For it, Laxmikant is more than sufficient. Apart from it, read newspapers and note down the current developments. Past years' papers can also be helpful.
I hope they will be helpful.
They also include a tentative study plan and strategy for these topics in the beginning of the notes.
If you notice a discrepancy, or have some suggestion or feedback, please leave a comment here.
Best of luck!