Rollover of non-convertible debt requires holder approval, liquidity disclosure, redemption commitment, and a recent credit rating. Roll over of the non-convertible portion of partly convertible debt instruments for listed issuers is permitted subject to Companies Act compliance and conditions: approval of a supermajority of holders by postal ballot; provision of an auditors' certificate on cash flow and liquidity with the resolution notice; an undertaking to redeem the non-convertible portion for dissenting holders; and obtaining and communicating a recent credit rating from a registered agency. Fresh security or a new trust deed is not mandatory if existing documents suffice, but the debenture trustee decides on necessity.