The main objective to write this book is to fulfill the requirement and interest of undergraduate students of pharmacy course according to the pharmacy council of India. Our book is a concise instant note form which is very help full of students to achieve their goal in external examination. Organic Chemistry is the branch of chemistry which includes a large number of compound having various structure and application. The central message of organic chemistry is that the properties and application of any compound is directly or indirectly depend on the structure of compound. This book is strong tool to understand the structure and application of organic compound which is very essential part of pharmacy student. In this book we also discuss some basic concept of organic chemistry in very soft and easy language which is very helpful to understand the basic concept of organic chemistry. The subject matter arrangement is strictly based on the syllabus prescribed by the PCI. The main feature of this book is the introduction of questions and problems with multiple choice question at the end of almost all the chapters keeping in view the requirement of all students.