IGST CREDIT USES

Rahul Mosekar (48 Points)

16 August 2019  
i had made interstate sale in April-18
but now i came to know that customer is not able to make payment, now i want to pass credit notes for whole amount.
Now question is, can i use this IGST credit against my July-19 intrastate sale. credit note amount is greater than my July-19 month sale.
please suggest....