The Supreme Perfection
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Master of many persons. There are plain instructions in  Mahabharata  and  Srimad Bhagwatam  (Seventh Canto, 11th Chapter) in which it is stated that a person should be accepted—either a Brahmin or a Kshatriya or a Vaishya or a Sudra—by his personal qualification, and not by birth.
And, if such personal qualifications become applicable to a person who is born in a family outside the ordinary field of his actual qualification, he should be accepted by his personal qualification alone. For example, if a man is born of a Brahmin family but his personal qualification is that of a Sudra, then he should be accepted as a Sudra. Similarly, if a person is born of a Sudra family but his personal characteristics are those of a Brahmin, he should be accepted as a Brahmin. All Shastric injunctions, and the version of great sages and authorities—and their practical behavior as well—establish that a bona fide Spiritual Master is not necessarily of the caste Brahmin class. The only qualification is that he must be conversant in the science of Krishna, Krishna Consciousness. That will make him perfectly eligible to become a Spiritual Master. That is the conclusion of Sri Chaitanya Mahaprabhu in His discussions with Ramananda Roy.
In the  Hari Bhakti Vilasa  there is the statement that, if there is a bona fide Spiritual Master born of a Brahmin family, and another who is qualified but born of a Sudra family, one should accept the Spiritual Master who is born of the Brahmin family, and not of the Sudra family. This statement is somewhat of a compromise to social understanding; but is not meant for spiritual understanding. For persons who prefer to count social status as more important than spiritual status, this injunction of the  Hari Bhakti Vilasa  is applicable. But not for the persons who are spiritually serious. For a person spiritually serious, the instruction of Chaitanya Mahaprabhu is that anyone—never mind what he is—if he is conversant with Krishna science must be accepted as the Spiritual Master.
There are many injunctions in the  Padma Purana  which state as follows: a highly elevated, spiritually advanced devotee of the Lord is always a first class devotee, and therefore he is a Spiritual Master. But a highly elevated person born in a Brahmin family, who is not a devotee of the Lord, cannot be a Spiritual Master. A person born in a Brahmin family may be conversant with all the rituals of the Vedic Scripture, but if he is not a pure devotee of the Lord, he cannot be a Spiritual Master. In all the  Shastras , the chief qualification of a bona fide Spiritual Master is that he must be a qualified person conversant in the science of Krishna.
Lord Chaitanya therefore requested Ramananda Roy to go on teaching