Social class is a unit in itself. It comes into being in a natural manner, over the decades and centuries. The class differentiation is the result of backwardness, lack of education and biased treatment by the governing bodies to some extent. But the root cause lies elsewhere. The system of life is such that all the creatures constitute a sound chain of interdependence. In spite of all the disparities at different levels, the mechanism, at work, is unchallengeable.