Format of issue advertisements requires explicit issuer identification, issue terms, credit rating disclosure and offer document availability. Schedule IV prescribes the format for public issue advertisements under Regulation 9(1), requiring issuer identification and contact details, public issue particulars (security description, denomination, price, coupon and redemption summary), proposed listing platforms, merchant bankers, debenture trustees, and compliance officer information. The advertisement must prominently disclose the credit rating and its meaning, state availability of application forms and the offer document (including risk factors) on listed websites, and include issue opening/closing dates and an issuer declaration by directors.