he book titled "Principles of Political Science – I" is designed for B.A. 3rd Semester students of Political Science, following the new syllabus prescribed by Maharshi Dayanand University, Rohtak, for their annual examination. It provides clear and detailed explanations of both small and big topics related to political science. This book covers the fundamental concepts and theories of political science, including the nature and scope of the subject, elements of the state, and its relationship with other organizations. It discusses various theories such as the origin of the state, Marxian theory, liberal views, socialist views, the concept of the welfare state, and sovereignty. To help students prepare effectively for exams, short answer and essay-type questions have been incorporated in each chapter. The language used is simple and easy to understand, making the book useful and helpful for students. The author encourages teachers and readers to provide feedback for further improvements to be included in upcoming editions.