Source of HSN codes in India Compliance App?

What is the source of the HSN codes in the India Compliance App? Are these the WCO codes, or India-specific?

Which edition is being used, the 2017 edition or the 2022 edition?

HSN Codes (for goods) adapted by is same as WCO codes.
SAC Codes (for services) are India Specific.

So HSN Codes in India Compliance app is a combination of both of them.

These have been moved from ERPNext. So I am not sure about the edition. But, definitely not 2022.