filing of gstr 3b for feb 2018 for newly registered person

obtained gumasta on 02/12/2017.
applied for GST registration on 22/02/2018.
obtained GST reg no on 03/03/2018.
is the assessee required to file gst 3b for the month of feb 2018 by 20/03/2018 if the assessee has few purchases only