We need a state goverment in spite of having a central goverment
Answers
Let us take a simple example. Just as in most of the houses the supreme power is under the control of grand father or grand mother here they work as a government at the center , government for the entire country that is usually responsible for a few subject of common national interest . where father and mother works as the government at the state which look after much of the day-to-day administering of their province . Both of the government goes hand in hand and equally essential for a successful Democracy .
So , the idea of this state and central government came form Federalism , it is a system of government in which the power is divided between a central authority and various constituent units of the country. Now the another question came up is why do we need this system? so , the whole idea is of power sharing which has emerged in opposition to the notions of undivided political power . For a long time it was believed that all power of a government must reside in one person or group of persons located at one place . It was felt that if the power to decide is dispersed, it would not be possible to take quick decisions and to enforce them . But these notions have changed with the emergence of democracy . One basic principle of democracy is that people are the source of all political power. In a democracy, people rule themselves through institution of self governance . In a good democratic government, due respect is given to diverse groups and views that exist in a society . Everyone has a voice in the shaping of public policies.