Principal

Principal, in the context of fixed income instruments such as bonds, debentures, fixed deposits, and loans, refers to the original face value or notional amount invested or borrowed — the sum that the issuer is obligated to repay to the investor at the instrument's maturity date, independent of the interest (coupon) payments made during the life of the instrument. For example, if an investor purchases a Government of India bond with a face value of ₹10,000 and an 8% annual coupon for ten years, the principal is ₹10,000 — the amount returned at maturity — while the ₹800 annual coupon represents the interest earned on that principal. Principal preservation is the primary objective for conservative investors in India who allocate to fixed income instruments, as it ensures the return of the original investment regardless of market interest rate movements. In structured products and securitised instruments, the principal may be partially protected (capital-protected structured products) or subject to reduction in loss scenarios (as with AT1 bonds).