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NISM Certifications · NISM-Series-VI: Depository Operations · Special Services - Debt Instruments and Government Securities

A client asks about the ISIN assigned to a debt instrument held in demat form. Which statement is correct?

An ISIN is a 12-character alphanumeric International Securities Identification Number that uniquely identifies a specific security, including each separate debt issue. It identifies the security, not the investor's account, and different maturities of one issuer carry different ISINs.

  1. AISIN is a 12-character alphanumeric code uniquely identifying a securityCorrect
  2. BISIN is a 16-digit number identifying the client's account
  3. CISIN is allotted by the DP to each investor
  4. DISIN is the same for all debt securities of an issuer irrespective of maturity

Explanation

An ISIN is a 12-character alphanumeric code that uniquely identifies a specific security. It is allotted for the security, not the investor, and different debt issues of the same issuer, with different terms, carry different ISINs.

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