I was at private property.my car window hits with other car &give a 1/2 inch dent on that car.can I know insurance rule for that

How did your car window hit another car?

I had the same question. A car window is embedded in a door frame. I can't imagine any way a window can cause damage to an adjacent car. Unless it was taken out of the door and banged against the other car.

What I suspect you were trying to say was that your car door banged into and dented the other car. Assuming the other car was no moving at the time, then you are at fault and your liability coverage should pay the other car's damages.

If you hit the other car ? But in any case, you tell your insurance company what happened, and let them work it out.