*.Go to www.gst.gov.in.
*.Login in your account .
*.In the menu, click Services.
*.Sub menu will open, In the sub menu click Registration.
*.You will see 3 topic.
*.Basic,cancellation Details and Verification
*.Go to basic and check all your basic details are there.
*.Then go to Cancellation details, give reason for cancellation.
*.Go To www.gst.gov.in.
*.Click profile.
*.Go to GSTN status.
*.You will find whether its active or cancelled.
*.If its cancelled then logout.
*.If not cancelled, Go to Services MENU.