How do I specify a custom apt dependency between kernel image and its headers?

[Ram Ramesh]

I have nvdia card that requires binary driver to work in my system. Xorg 
is unable display anything with free driver. Since nvidia-driver has to 
be built for each kernel install, I need to install headers also. This 
seem to work automatically for any standard kernel release in bullseye. 
However when I install newer kernel from backport, apt does not install 
headers automatically. How do I tie the install of linux-image to 
linux-header so that I cannot install image without the headers.

Regards
Ramesh