Political Theory is a comprehensive study on the subject providing an insight into latest thinking by the contemporary political scientists. It introduces the students to various political theories, their evolution and approaches and an assessment of their critical and contemporary trends. It also helps in reconciling political theory and practice through reflections on the ideas and practices related to welfare state, Fascism, Nazism, democracy, nationalism, internationalism and imperialism. It is developed for the undergraduate students of Political Science (Pass and honours courses). Aspirants of various competitive examinations such as Civil Services Examination and state public service commission examinations will also find the book extremely useful.