Wrong entry in GSTR 1.

Need not worry, Its a common mistake. You can amend the details in next month's GSTR 1 under tab 9A (If they are B2B).

Also note it down so that it would be helpful in future while filing GSTR 9 for the FY.

Hope This clarifies your doubt. Do contact for clarification.

Thank u sooo much fr ur reply but I am bit confused.  Can you share me ur number.  Will not consume much of ur time..