Perpetual Debentures are also known as:-

Irredeemable Debentures

The correct answer is Option (4) → Irredeemable Debentures.

Perpetual Debentures are also known as Irredeemable Debentures.

Irredeemable Debentures, also known as "perpetual debentures" or "non-redeemable debentures," are a type of long-term debt instrument issued by a company to raise capital. Unlike most other debentures, which have a specified maturity date when the principal amount is repaid to the debenture holders, irredeemable debentures do not have a predetermined maturity date for the repayment of the principal. While there is no fixed maturity date for the principal repayment, irredeemable debentures provide regular fixed interest payments to the debenture holders. These interest payments continue for the life of the debenture. The principal of irredeemable debentures is typically repaid to the debenture holders only in the event of the company's winding up or liquidation, after all other obligations and creditors have been settled.