GST retrns FY2019-20

Need to file all pending returns after that you can apply for cancellation of registration

Thnaq sir

File your GST return till March 20 and THEREAFTER file GST Cancellation Application

You cannot proceed to cancel your GST Registration unless you file all your pending GST Returns. First file all your pending GST Returns and clear all your tax liabilities with the department and then file FORM GST REG-16 electronically ( Application for Cancellation of GST Registration ).

Kindly note that under GST regime filling Returns are mandatory even if there is no transaction in a particular month ( NIL RETURN ).