Now a days the necessity of English Medium of instruction in Secondary and Higher Secondary level,in cadet College and in some schools and colleges of the country that is recognised by Education boards. The book is written in accordance with the latest syllabus of National Curriculum and Textbook Board (NCTB) as a Textbook of Higher Secondary Certifiable (HSC) Course. It is heartily felt that the book will meet the necessity of learners of English Medium of the Higher Secondary Level.