Sagar Patel (Tax and Business Consultant) 21 September 2020
You can change your mobile number online by filing Registration amendments applications (Amendments in non-core field) after login to your GSTIN portal..
CA Sachin Jain (Practicing CA) 21 September 2020
1. You will have to add a new authorised signatory with the new mobile and email.
2. Make the new as primary authorised signatory and remove the old one.
For further clarification contact CA SACHIN M JAIN
Mobile : 8097515447
WhatsApp : tinyurl.com/wCASMJ
Email : casachinmjain @ gmail.com
LinkedIn : tinyurl.com/LCASMJ
YouTube : tinyurl.com/YCASMJ
Twitter : tinyurl.com/TCASMJ