About the Book: The Arihant handbook is a unique multipurpose Revision book series, developed to facilitate quick and powerpack revision of various Key Notes, Terms, Definitions, & Formulae. Each book of this series is equally useful for revisions before board exams and all relevant competitions like JEE, NDA, CDS, UPSC, etc. The latest revised editions of this series are now even more powerful with Fantastic 4 feature containing; Value Points, Competition Insight, Knowledge Booster, and Knowledge Library.