Urgent late fee and interest

hello, i used to file 3B monthly 20th but this time i failed to file on time so i have received a notice in (Form GSTR-3A has been issued u/s 46 vide).

i am filing the return now on 25th, so do i have to include late fee & interest in this return or next month's return?

how much should be the late fee & interest?

i have to give any resposne on this notice?

thanks for help