What make caste system different from other societies is that in this system, hereditary occupational division was sanctioned by rituals?

Caste system was based on exclusion of and discrimination against the ‘outcaste’ groups. They were subjected to the inhuman practice of untouchability That is why political leaders and social reformers like Jotiba Phule, Gandhiji, B.R. Ambedkar and Periyar Ramaswami Naicker advocated and worked to establish a society in which caste inequalities are absent.