How to create a GSTR 3B report in Sleek Bill Online?
In your Dashboard, from the right hand side menu select GST Reports.
Under the newly opened GST Reports menu select GSTR 3B. Select the financial period (the month that you need to take a report for) and click on the "Export" button.
You will shortly receive an excel format report (based on the government format) on your email (the one you used to make your Sleek Bill Online account)