Book excerpt: "This book is the second in series, in which it has been described that by using the formulas given by Vedic Mathematics, we can easily do our calculations orally in the shortest possible time. Along with this, you will also be able to know the introduction of ancient Indian mathematicians and their contribution to mathematics. This book has been written in very simple language. To make the formulas easily understandable,42 videos and practice questions have also been included in this book. The contest of the book is useful for all the students, teachers, and job aspirants participating in various competitive exams, certificate courses as it helps in quick calculations and it is also beneficial for diploma course in Vedic Mathematics."