We can abolish caste system altogether from India . There are some ways available to abolish caste system .
1 First and most effective method to abolish caste system is to encourage inter caste marriage because with inter caste marriages caste is a meaningless institution .Because with inter caste marriage caste of any women will be changed after her marriage so only with the help of present intracaste ( endogamy ) marriages caste can be preserved . So every person interested in abolition of caste system should encourage inter caste marriage .
2 Second method is that priest ( pujari ) in temples should be from all castes instead of only Brahmins . Dominance of Brahmins in Indian caste system and Indian society totally depends on their priesthood . So priesthood should be given to every caste .
3 Third method to abolish caste system from India is women empowerment . Actually marriage system in India and caste system in India are deeply interconnected and if women get financially strong marriage itself will become weak . So along with marriage caste system will also become weak . All victims of caste system of India want to get rid of caste system . So they should encourage all these three methods to abolish caste system .