Gstr filing for pest control services provided

We provide pest control door to door services to normal household consumers and people. We provide bill to them with our GSTIN no and collect tax along with bill amount. But such people do not have GSTN number.

Also, we provide bill to industries where we provide our service and those bills contain their GSTIN number.

How do we input such details in the GSTIN portal. Should we file return under GSTR 1 or GSTR 3 for these separate types of service reciepients.

Request to kindly clarify.