SEBI being the National Numbering Agency for India has permitted NSDL to allot International Securities Identification Number (ISIN) for demat shares. While allotting ISINs, NSDL observes that:
• The ISINs allotted by NSDL does not at any point of time breach the uniqueness of ISIN of physical form for the same security.
• ISIN for a security is allotted only when the security is admitted to NSDL.
• The numbering system is simple.
• The numbering system of ISIN is in compliance with the structure of ISIN adopted by SEBI.
Numbering System of ISIN. The numbering structure for securities in NSDL is of 12 digit alpha numeric string. The first two characters represent country code i.e. IN (in accordance with ISO 3166). The third character represents the Issuer Type as detailed :
The list may be expanded as per the needs. Maximum issuer types can be 35 (A to Z and 0 to 8. The pro-rata dividend shares are identified by 9). The next 4 characters (fourth to seventh character) represent company identity. The first 3 characters are numeric. The fourth character is alpha character. The numbering begins with ‘001A’ and continues till ‘999A’ and proceeds to ‘001B’. The next two characters (the eight and ninth characters) represent security type for a given issuer. Both the characters are numeric. The next two characters (the tenth and eleventh characters) are serially issued for each security of the issuer entering the system.
Last digit is double-add-double check digit.
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