Can someone from a lower caste become a disciple?

According to Osho, caste is irrelevant to discipleship; what decides is trust and inner faith. He condemns Dronacharya’s political rejection of the Shudra Ekalavya, praising Ekalavya as the model disciple who arrived without a living guru through unwavering devotion. With deep self-trust, even a statue becomes alive; without it, even accepted disciples go nowhere.