Mata Amritanandamayi is a scheduled caste woman. All Hindus, including Brahmins, worship her and take her blessings. This is only a current day example. In the past too, several low caste people were worshipped by ALL Hindus. Lord Krishna was an OBC, as per today's OBC definition. Sage Vyasa was from a fisherman tribe. He too is considered equal to Lord Krishna. Sage Valmiki, who wrote Ramayana, was a dacoit and he would fall into Scheduled Tribe category.
