Basis of cast system is differance in valuation of labour. That means jobs involving more physical work valued less & vice versa. Do all of us writing on this issue are sure that this basis has been corrected.We are still arguing like cast system , venugopal and DMk and all that. In my opinion the differance is becoming wider and wider. Today if I am a worker no matter my cast is so called upper cast or lower cast my value is far far less than say a manager no matter what his cast or religion is. Unless and untill there is some sense in valuation of labour this high level of unequility wont perish . We all shall be arguing in the matter of cast system on very superficial level.