The book is not original but copy/photostat of the original one.Please don't buy from the seller.They are selling duplicate copy of the book.This is a serious copyright issue and will be raising a complaint with S Chand publications as on such a platform, duplicate products are being sold.
It's a very good book for the beginers preparation and It's also good for those who want to focus on specific chapters of math for their betterment. The only thing for which I am not satisfied is that there are no test papers at the end of the book, I mean the mislenious part. But overall this is a great book. Though you have to follow more books for exam preparation but obviously this book is of a great importance. Go for it without thinking.