How to revise a filed supply? Debit/ Credit note or revising the supply

After generating e-way bill for a interstate supply found the gst rate was wrong. Collected 5percent instead of 18 percent. How to rectify the error? If the supply bill is reissued with the correct IGST rate, it would be different from the e-way bill particulars already filed. Would a debit note with differential 13 percent IGST alone suffice to correct the mistake? If so the receiver of the supply could avail the input this month itself. Or is it right to file the GSTR1 with the incorrect 5 percent in this month and revise it be next month applying 18 percent? Experts kindly advice.