Query about treatment of below case in Gst return 3b.

VIJAY SAVALIYA (STUDENT) (39 Points)

15 August 2017  
if we made sale before 15.07.2017 bt registration certificate received on 18.07.2017 then what is the treatment of sales before 18.07.2017 in GST Return 3B? N how we can show the same in return n in which head?