Undoubtedly The Best Book Available is Indian Polity - M Laxmikanth
Indian Polity by M. Laxmikanth Covers the almost Whole Static Polity Portion.
Optional Reference :
Introduction to the Constitution of India - D.D. Basu
- Which Bills in parliament Passed or Not
- Supreme court’s orders or important hearings
- Deals done and Environment/Yearbook based
- Centre-State relations point of view on various Current affairs
- Scams etc and latest happenings and so on.....
Sources for Current Affairs
- Newspaper : The Hindu / IndianExpress