Mobile number or email address is a Non-Core Field and can be amended from the taxpayer’s account on the GST Portal.
- Login to GST Portal
- Go to Services > Registration > Amendment of Registration Non-Core Fields
- Select tab Promoter/Partner or Authorized Signatory and make required change to mobile or email
- Click on verification tab, select authorized signatory, enter place and sign application using DSC, E-sign or EVC
- Success message is displayed and copy of acknowledgment is sent to earlier registered email and mobile