You can check the status of your GST return filing by logging in to the GST portal and navigating to the "Services" tab. Under the "Returns" dropdown menu, select "Track Return Status." Enter the relevant details such as the return filing period, return type, and acknowledgement number or filing date. The portal will display the current status of your return, whether it has been filed, submitted, processed, or pending for any action. You can also download the acknowledgement receipt for the return filed, which serves as proof of filing. It is advisable to regularly check the return status to ensure timely compliance and avoid any penalties for non-filing or delayed filing.