what r the duties of brahmin kshatriya vyshya & shudra according to manu the moola purusha of humanity?

A)अध्यापनं अध्ययनं यजनं याजनं तथा ।
दानं प्रतिग्रहं चैव ब्राह्मणानां अकल्पयत् ।। (मनु स्मृति)
Learning the God knowledge teaching the God knowledge doing yagna, help others do yagnas giving daanam and receiving the daanam are the duties of brahmin.
नरसिंहाचार्य सुळिभावि
मठाधिकारि,
गुंटूर, उत्तरादिमठम्
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