step1:To open GST online website click here. Click on login from the top of menu bar.
Step2:
If you are Existed user enter user name, password and captcha code. If you are new user click on ‘click here’ as shown in below image.
You will get a form, enter Provisional ID / GSTIN / UIN , Password and Captcha.
step3:Click on login button.
Step4:
This GSTN portal will be taken You to the dashboard on successful login where you can see a summary of the GST Credits that you have, GST Payable (if any), Notices, etc.