ॐ ह्लीं बगलामुखी सर्व दुष्टानां वाचं मुखं पदं स्तम्भय जिव्हां कीलय बुद्धिं विनाशय ह्लीं ॐ स्वाहा ॥ A Tantric priest, that's an authority in the field, typically performs the puja. Moreover, he is chargeable for the selection of the right materials and accomplishing the ritual based on the prescribed methods. https://www.youtube.com/shorts/OwWuNhY7kz4