In case, either the taxable person is no longer liable to be registered under Goods and Services Tax (GST) or the proper officer believes that the registration is liable to be cancelled. Then, the proper officer shall issue an order cancelling the GST registration in Form GST REG-19. Thus, in nut-shell, whenever the GST registration of the taxable person is cancelled, the proper officer will issue an order in Form GST REG-19.
Source Taxguru
