Dear students and friends, the syllabus has changed and the pattern of questions have also changed. In fact, the way the teaching is required for the new syllabus is different. Instead of giving full information and facts, only the sense of what is to be found has been given in the chapters. This method of study rewards those, who are willing to go farther and find out the details required for the study of the chapter. So, here it is, that I will try and provide some extra and fruitful information to help you in your study.