1. Navigate to the Apps section in OPEN
2. Click on OPEN Taxes
3. Click on GST
4. Click on Returns and then click on ‘Fetch’. 
5. Once you click on fetch you need to select the ‘Return Type’ ‘, Financial Year’ & Select 'Period' from the drop-down menu. 
6. Once you are done click on ‘Fetch’ and then click on the down arrow download button to download the reports.