I have filed GSTR-1 for the month of March 2022 on 11-04-2022 (within due date). But accidently two B2B invoices were omitted to upload in the GSTR-1 because E-invoice was not generated in respect of that two bill due to some network error. How can I correct my mistake in GSTR-1 for the month of March-2022. Amendment in GSTR-1 can be filed in the subsequent month return, in my case whether amendments are possible.