The ePub provides Quick Revision of the concepts involved along with Important formulas and definitions, in each chapter, which would act as a refresher. The solutions have been designed in such a manner (Step-by-Step) that it would bring 100% Concept Clarity for the student. The solutions are Complete (each and every question is solved), Inflow (exactly on the flow of questions in the NCERT book) and Correct (Errorless).