1. Insert the USB token containing the DSC. Run the em-signer GSTN

  2. Login to your account on the GST Portal with valid credentials. Go to My Profile

  3. Click on Register / Update DSC under Quick Links. Select PAN of authorized signatory

  4. Select the certificate from the pop-up box and click on SIGN

  5. Enter the password to authorize the DSC

  6. A success message will be displayed on successful registration of DSC

Read more: How to register or update a DSC on the GST Portal?