GSTN (Goods and Services Tax Network)

This is the actual GSTN advisory behind the 30-day rule, straight from the regulator rather than a paraphrase, so you know exactly what triggers suspension and how to undo it.

Advisory on Bank Account Validation

From GSTN (Goods and Services Tax Network)

• Bank account details must be added and validated within 30 days of registration, or before your first GSTR-1/IFF filing, whichever is earlier.
• A missing or failed validation triggers automatic GSTIN suspension with no manual notice required.
• Furnishing valid bank details after suspension auto-revokes it, usually within a few working days.