A study of the State and Government: Political Science primarily studies the problems of the State and government. The state is defined as a group of people organised for law within definite territory. The State possesses four characteristics, viz. Population, territory, government and sovereignty. Government is an agent of the State. Political Science studies the activities of the State and explains the aims and objectives of the State and government. A Study of Political Theory: Political theory is a major branch of Political Science. On the basis of the political ideas or thoughts of political thinkers, political theory formulates definitions or concepts like democracy, liberty, equality, grounds of political obligation, etc. A Study of Political Institutions: The field of Political Science is rather vast. It includes the study of political institutions. This covers a study of constitutions and comparative government, explains their merits and demerits, their struct...