India ISIN Data

ISIN Data from various public securities.

Source: NSDL Website Detailed ISIN Search.

Automatically updated every midnight (IST).

File	Issuer	Tracked
INA.csv	Central Government	No
INB.csv	State Government	No
INE.csv	Company, Statuatory Corporation, Banking Company	Yes
INF.csv	Mutual Funds	Yes
IN9.csv	Partly paid up shares	Yes

Note: The NSDL Website returns zero valid results for INA, INB, so those are not tracked.

ISIN Structure

ISIN (Internation Security Identification Numbering System) is defined by ISO 6166:2021 and adopted in India by BIS as IS 15415:2021 ((PDF)) ((PDF2)). ISINs in India are alloted by NSDL for all securities except Government Securities (See Page 9).

This Indian Standard (Second Revision) which is identical with ISO 6166 : 2021 ‘Financial services - International securities identification number (ISIN)’ issued by the International Organization for Standardization (ISO) was adopted by the Bureau of Indian Standards on recommendation of the Banking and Financial Services Sectional Committee and approval of the Services Sector Division Council.

ISIN, as per the ISO standard consists of 3 parts:

1. 2 Character country code as prefix (ISO-3166). For ISINs issued in India, this will always be IN.
2. The Basic Number, 9 alphanumeric characters left padded with zeroes.
3. A check digit.

The basic number in India is issued by NSDL and is composed of 4 parts:

1. 1 Character for the kind of issuer. This varies from A-F/9.
2. A 4 character Issuer Code. Alphanumeric.
3. A 2 Character code for security type. Alphanumeric.
4. A 2 Digit serial number for the security itself. Alphanumeric.

Hence, each issuer can issue 36^2 = 1296 securities under each type. The table below explains the same with an example:

Field	Country Code		Issuer Type	Issuer Code				Security Type		Serial Number		Check Digit
Index	1	2	3	4	5	6	7	8	9	10	11	12
Class	I	N	A-F,9	alpha	alpha	alpha	alpha	alpha	alpha	alpha	alpha	0-9
Sample	I	N	F	7	8	9	F	0	1	X	A	0

In the above ISIN (INF789F01XA0), here's the breakdown:

• Country Code: IN
• Issuer Type: F (Mutual Funds)
• Issuer Code: 789F (UTI Mutual Fund)
• Security Type: 01 (Equity Shares)
• Serial Number: XA
• Check Digit: 0

Isser Types

Issuer Type	3rd Character
Central Government	A
State Government	B
Municipal Corporation	C
Union Territories	D
Company, Statuatory Corporation, Banking Company	E
Mutual Funds	F
Partly Paidup Shares	G

Issuer Code

Please see issuers.csv (🚧)

Security Type

TODO: This is missing a few values.

Code	Security Type
01	Equity Shares
02	Postal Savings Scheme
03	Preference Shares
04	Bonds
05	Deep Discount Bonds
06	Floating Rate Boands
07	Commercial Papers
08	Step Discount Bonds
09	Regular Return Bonds
10	Certificate of Deposits
11	Securitised Instruments
12	Debentures

Check Digit

The last digit (check-digit) is calculated using the Luhn Algorithm with a slight change to accomodate alphanumeric characters. Alphabets are converted to digits by adding 9 to the usual numeric value of each letter. For example A=10,B=12,C=13……Z=35. A few examples:

ISIN	Payload	Check Digit	Validate
INE009A01021	18 23 14 009 10 0102	1	CyberChef
US0378331005	30 28 0378331001	5	CyberChef
AU0000XVGZA3	10 30 0000 33 31 16 35 10	3	CyberChef
INF789F01XA0	18 23 15 789 15 01 33 10	0	CyberChef

References:

• https://www.basunivesh.com/how-your-dmat-mutual-funds-and-shares-isin-structured/
• https://theindianstockbrokers.com/what-is-isin-number-and-how-to-find-it/
• https://en.wikipedia.org/wiki/International_Securities_Identification_Number
• ISO 6166, Annex A.

Code

You can run the fetch.sh script to generate the tracked the files from scratch. Dependencies:

• https://github.com/ericchiang/pup
• https://stedolan.github.io/jq/
• https://www.gnu.org/software/parallel/
• https://curl.se/
• https://www.gnu.org/software/sed/

Alternative Sources

ISINs for India can be found at a few other sources:

• https://nsdl.co.in/downloadables/html/hold-mutual-fund-units.html
• The Kuvera Mutual Fund Details API returns ISIN codes.
• The OpenFIGI API

License

Licensed under the Creative Commons Zero v1.0 Universal license. There are no guarantees made as to the correctness or accuracy of this data.