Debenture Trust Deed requirements: prescribed terms, trustee rights, security rules and events of default govern holder protections. The debenture trust deed must set out the purpose and key terms of the debenture issue, the company's undertaking to pay principal and interest, and conversion/redemption mechanics; detail secured-debenture charges including nature, rank, asset description, valuation, preservation, charging of future assets, enforceability triggers and restrictions on further encumbrances; prescribe appointment, resignation, removal, rights and duties of the debenture trustee, define events of default and trustee remedies; and enumerate company obligations on registers, inspections, insurance, reporting, dividend restrictions, redemption reserves, notice and modification procedures, and grievance redressal.