tāntrikeṣu ca mantreṣu dīkṣāyāṁ yoṣitām api sādhvīnām adhikāro 'sti śūdrādīnāṁ ca sad-dhiyām

tantrikesu ca mantresu
diksayam yositam api
sadhvinam adhikaro 'sti
sudradinam ca sad-dhiyam
"Sudras and women who are chaste and sincerely interested in understanding the Absolute Truth are qualified to be initiated with the pancaratrika-mantras." This is also confirmed in Bhagavad-gita (9.32):
 

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