We made interstate sale from 22-03-2022 and applied for GST registration on 25-03-2022. but department has approved my registration on 06-04-2022. Now if I am trying to file GSTR-1 for the month of March-22 then portal is not allowing me. I had also contract at my judication officer but they also helpless in this matter. They says that my registration approved in April-2022 then I can't file bill details before the 06-04-2022. Anybody help that how I will file GSTR-1 for march 2022 to give the credit to my buyers.
Please guide me.