Non-convertible 100% redeemable monthly debentures represent a type of investment instrument offered by companies or governments to raise funds. Unlike convertible debentures, which can be converted into equity shares, these debentures cannot be converted into any other financial instrument. However, they provide the holder with the assurance that they can redeem the debenture for its full value at the end of its term. Additionally, they offer regular monthly interest payments to the debenture holders, making them an attractive investment option for those seeking stable income streams. Overall, non-convertible 100% redeemable monthly debentures offer a combination of fixed returns and redemption security to investors.