Bro, when I went to the dealership to get delivery of my Alto VXL AGS, I checked the body inside out thoroughly. There was a white mark on the rear bumper, which I asked them to rectify at that time. I also checked the tires and tire inflator, since I was told these items didn't come under warranty.
Nut shell: Inspect each and every thing, but inspect all those things CAREFULLY, which don't have WARRANTY (Vehicle paint, body (especially under body for rust / damage), tire inflator, tires etc).
Vehicle invoice should reach the dealership within 5-6 working days.
Come what may, Always sign the delivery letter, after inspecting the vehicle thoroughly...!!!
All the best!!