Essential books for Indian Polity in UPSC preparation include "Indian Polity" by M. Laxmikanth, which covers the constitution, governance, and amendments comprehensively. Additionally, "Introduction to the Constitution of India" by D.D. Basu and "Our Constitution" by Subhash Kashyap are valuable. For current events, candidates can follow newspapers like "The Hindu" and "Indian Express," and refer to monthly magazines like "Yojana" and "Frontline." These resources help build a robust foundation for understanding India's political landscape and its implications.