If you want to change your contact number or email address in the GSTN portal you should read the instructions below carefully. This article will tell you how to update your contact details in the GSTN portal, how to integrate your GST with Customs which is also known as ICEGATE and what to do if you do not have access to your registered email address or mobile number, in the GSTN portal.
Part 1: Updating Contact Details on GSTN Portal
To update your email ID or mobile number in the GSTN Portal, follow these steps:
Step-by-Step Process:
Visit the GST portal: www.gst.gov.in
Login using your credentials.
Click on “Services”
Select “Registration”
Click on “Amendment of Registration – Core Fields”
Click “Save & Continue”
Click “Continue” again
Edit the required details such as Email ID and Mobile Number
Mention the Reason for Amendment and Date of Amendment
Click on “Save”
Click “Yes” to confirm
Click “Save & Continue”
Select the Declaration checkbox, choose the Authorized Signatory, and enter the Place
Click on “Submit with EVC”
Validate the process by entering the OTP
Important Note:
When you are done with the steps you have to wait for 24 hours for the new contact details to show up in the GSTN system. You have to be patient and give it this day for the GSTN system to update the new contact details.
Part 2: GSTIN Integration with Customs (ICEGATE)
When you update your contact details, in the GSTN system you have to wait for 24 hours. After that you need to connect your GSTIN with Customs. You have to do this step with your GSTIN and Customs to make sure everything is working properly with your GSTIN.
Use the following link for GSTIN integration:
https://foservices.icegate.gov.in/#/general-services/gstin-integration
You should give it 24 hours for the new details to show up correctly in the ICEGATE system. This is because the ICEGATE system needs some time to update everything. So wait for 24 hours. Then check the ICEGATE system again for the updated details. The ICEGATE system will have all the information after 24 hours.
Part 3: What To Do If You No Longer Have Access To Your Email Or Mobile Number
If you do not have access to your registered email or mobile number you will have a problem. You need your registered email or mobile number to get messages from the website.
So what can you do if you do not have access to your registered email or mobile number? You can try to get into your email account or you can get a new mobile number.
You should also contact the website. Tell them that you do not have access to your registered email or mobile number. The website will help you to solve this problem with your registered email or mobile number.
Remember that your registered email or mobile number is very important. You need it to use the website and to get messages from the website about your registered email or mobile number.
If you are still having trouble, with your registered email or mobile number you should keep trying to contact the website. They will help you with your registered email or mobile number.
If you can not get into your email account or if you do not have your phone number anymore you need to change the information, on the ICEGATE website. You have to update your email ID and mobile number through the ICEGATE portal.
Steps to Update Contact Details via ICEGATE:
Visit: www.icegate.gov.in
Click on “Login/Signup”
Click on “Forgot Email/Mobile”
Enter your ICEGATE ID
Select and update the new contact details
Updating your contact details in the GSTN portal is essential to ensure smooth communication and compliance. After updating, remember to:
Wait 24 hours for changes to reflect


