Keeping this number current is critical — a wrong number means no OTP and no login.
How to update mobile number: step by step
1
Amend on the GST portal
File a non-core amendment to update the authorised signatory's mobile.
2
Verify
Complete the OTP verification for the change.
3
Refresh in E-Way Bill
Pull updated details from the Common Portal.
4
Test
Log in and confirm the OTP arrives on the new number.
Good to know
Tip
This is an informational walkthrough. Always carry out the actual transaction on ewaybillgst.gov.in, the official government portal.
For the bigger picture, see the Registration Guide. You may also want the error guide if something goes wrong, or the FAQ guide for quick answers.
Frequently asked questions
OTP still goes to my old number.
Confirm the GST amendment is complete and verified, then refresh details in the E-Way Bill system.
Can I use two numbers?
OTP follows the GST-registered mobile; update that one number to control where OTPs go.