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 dispensing powers would delay in decision-making and their enforcement. 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 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 the public policies.