Though we always try to publish a flawless work, but even then there is an oversight. To overcome this, we welcome suggestions from our readers. These suggestions can be in the form of pointing out spelling errors, misprint, misinterpretation etc. Besides, you can also point out factual mistakes, irrelevant things and suggest for improvement and inclusion, if any.While sending feedback, always write the name of the book, class, author and page number. This will make easy to rectify the mistakes.We hope you will definitely spare your useful time for this important cause because we consider you a part of our team.A perfect work is a result of the efforts of a good team.