How to file gstr 3b for jan'21??

Maya (Student) (658 Points)

20 February 2021  
Dear frds/ experts,

For jan'2021 Gstr 3b filing, its option is not showing in the GST portal...today is the due date, T.O. is below 5 Cr during P.Y. plz kindly guide me how to file Gstr 3b ???
plz treat very urgent!!!!
Thanks in advance.
-Maya