Mandatory listing of debt securities and non-convertible preference shares requires listing application and timely refunds with interest for delayed listing. An issuer offering debt securities or non-convertible redeemable preference shares must apply for mandatory listing to recognized stock exchanges and, if listing does not occur by the scheduled listing date, must refund or unblock all application monies within two working days and pay interest for delay from the scheduled listing date until actual payment. The issuer must file prescribed documents with the listing application (including the offer document, constitutional documents, board resolutions, recent annual reports, material contracts, and undertakings on creation of charges and creditor consent) and provide additional particulars as required by the exchange.