lost my old passport

HI I got my new passport few months back with the address change and the old one has no valid visa in it… unfortunately i lost it while changing my home recently… But i have the new one with the old passport ref number… Do i need to report it to police station?? or RPo…

With new passport ,h1b approved. I have US visa interview in the coming week … Do they ask for old passport?? please help me im clueless in this.

In DS160 ,under passport section ,i need to check the checkbox(ever lost your passport?)

Please help me