What are the qualitative features of a good persuasive letter? Why persuasive message in significant for any organization?

In the perspective of inclusive growth of the country, women-led Cottage, Micro, Small and Medium Enterprises (CMSMEs) have been prioritized for a pretty long time. Recently, "Small Enterprise Refinance Scheme" has been dedicated for women entrepreneurs with the features of low interest rate, grace period, colletaral free, simple process etc.

Considering the importance of the matter, issue a credit circular letter for bank branches against Bangladesh Bank Circular highlighting the key points there in.