Oswaal CBSE Question Bank Class 9 Science Chapterwise and Topicwise (For March 2019 Exam) About the Author This latest offering Oswaal Books is developed by “Oswaal Panel of Experts”.  Oswaal Books strongly believes in Making Learning Simple. To ensure student friendly yet highly exam-oriented content, we take due care in developing our Panel of Experts. Accomplished teachers with 100+ years of combined experience, Subject Matter Experts with unmatchable subject knowledge, dynamic educationists, professionals with keen interest in education and topper students from the length and breadth of the country, together form the coveted Oswaal Panel of Experts. It is with their expertise, guidance and keen eye for details that the content in each offering from Oswaal Books meets highest quality standards. No wonder, Oswaal Books holds an enviable place in every student’s heart!