This multicoloured physics booklet is the product of more than fifteen years of teaching and innovation experience in physics for JEE main and Advanced aspirants. Our main goals in writing this book are • to present the basic concepts and principles of physics that students need to know for JEE-advanced and other related competitive exams.• to help students develop both quantitative reasoning skills and solid conceptual understanding, with special focus on concepts well documented to cause learning difficulties. • to help students develop problem-solving skills and confidence in a systematic manner, basic to advanced level examples are provided with problem solving approach with solutions.• checkpoint questions have been added to applicable sections of the text to allow students to pause and test their understanding of the concept explored within the current section. The answers to the Checkpoints are given in answer keys, at the end of the chapter, so that students can confirm their knowledge without jumping too quickly to the provided answer.• to test the level of students, multiple choice questions, conceptual questions, practice problems with previous years JEE Main and Advanced problems are provided at the end of the whole discussion. Answer keys with hints and solutions are provided at the end of the chapter. We have kept these goals in mind while developing the main themes of our physics booklet.