GSTN has implemented a validation process for cases where a taxpayer attempts a non-core amendment to update bank account details. Taxpayers are requested to follow the procedure outlined in the link provided below while adding bank account details on the portal.
https://https://tutorial.gst.gov.in/downloads/news/fo_advisory_validate_bank_account_details.pdf.
Source-https://www.gst.gov.in/newsandupdates/read/537
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