Gstr 1 return in case of loogistics company

We ar an logistics company. From July 17 we have filed GSTR3 B return. regularly. 

Since the gst on the invoices which are raised by us has to be paid by the opposite party on reverse charge basis, we are doubtful whether have we to file gstr1 . we have not filed gstr1 from july 17 . have we to file?????

please advice asap and if yes here should the disclosure of the same has to be made in the return ???

Many thanks