Debit notes - Imports

Hello all,

I have the same question. Please give your inputs. We have paid GST on import.

Dear Sir/Madam

We have import some material from from Chaina, now found the material is defective.
So we have raise debit note, it is right or wrong?
If , Yes then how we have show in GSTR1 or GSTR3B
If, No then how we close the transaction.

Thanks & Regards
Yogesh