Security cover requirement: lead managers must ensure adequate security cover and additional interest obligations for listed debt issues. Lead managers must not employ any device, scheme or artifice to defraud in connection with issuance or listing of debt securities and non-convertible redeemable preference shares. They must ensure secured debt securities have hundred percent security cover or higher as per the offer document and/or Debenture Trust Deed, adequate to discharge principal and interest at all times. Lead managers must also ensure payment of additional interest by the issuer in case of non-allotment, and verify compliance with offer-document and trust-deed terms.