Revocation of cancelled GST Number

If the cancellation was done by the GST officer (not a voluntary surrender), you can apply for revocation using Form GST REG-21 within 90 days of the cancellation order date. The portal will require you to file all pending GST returns before processing the application, so clear those first. If the cancellation was a voluntary surrender, revocation is not available and you would need to apply for a fresh GST registration. Our [GST cancellation and revocation guide](https://taxgarden.in/blog/gst-registration-cancellation-revocation-guide-india) covers the exact steps, required documents, and what to do if your REG-21 gets rejected with a notice.