20% ITC Rule

1. As per Notification no.: 49/2019/CGST

• “Input tax credit to be availed by a registered person in respect of invoices or debit notes, the details of which have not been uploaded by the suppliers under sub-section (1) of section 37, shall not exceed 20 per cent. of the eligible credit available in respect of invoices or debit notes the details of which have been uploaded by the suppliers under sub-section (1) of section 37.”
• Further as per the conversation with the representative from CBEC, the above notification shall apply only for the filing of annual return. (Form 9)

Now, my question is whether this provision is applicable for monthly returns or for annual return??