Hi I am Gagan I am a tutor I am running my coaching in mathura and I am very glad to share my experience on RD sharma`s mathematics book I have used many books in maths like RS agarwal, evergreen etc but found that Rd sharmas`s maths book is best among them.This book is best for those students who wants to score good marks this book covers full syllabus of ncert books and lots of extra questions also.These books are available from class 6 and upto higher level, these books are very useful for competative exams.Every year the book is updated and updated questions are useful for exams, its examples are also very good and all questions are based on examples.I prefer this book to all my students, in intermediate exams it is not easy to get good marks but with the help of this book you can get good marks, only this book is enough no need to do any extra book .RD shama book is published by dhanpat Rai publications.According to me this is the best book for all students of all classes.