When i try to save GSTR1 data to portal, it shows as Jason Error. Can any one help me in resolving this.

Welcome to Community, @pandirinagarjun.

I'll share with you the steps on how to fix the JSON error. Let's open your account using the incognito mode or a private browser. The error might be caused by too much data saved on your browser, causing the program to not work properly.  

Here's how:

• Press Ctrl + Shift + N (Google Chrome).
• Hold Ctrl + Shift + P (Mozilla Firefox).
• Press Command + Shift + N (Safari).

After logging in, try saving your GSTR1 data again. If it's working fine, it is a good idea to clear the cache to start on a clean slate. This process helps the browser to fetch the latest version of the webpage and faster browsing experience.

In case you need help with other GST tasks, click this link to go to out general GST topics with articles.

If you still have questions or concerns, feel free to message me anytime. I'm always here to help. Have a nice day ahead.