Like any business Apple needs growth to satisfy the shareholders. New growth would come from India and China. Apple didn't leave China and neither it will leave India. India can and will survive without Apple. Though having it in the country would be good for optics.
The moment mobile companies locked down sideloading, ability to uninstall bundled software, etc., they made it impossible to argue techincally against bundled, uninstallable software from the government.
> Apple didn't leave China and neither it will leave India. India can and will survive without Apple
They can both survive without each other. But neither is going to break the arrangement without a lot of pain. They have mutual leverage with each other, and that becomes particularly material when one stops treating India as a monolith.
> India can and will survive without Apple. Though having it in the country would be good for optics
Most people aren't content with merely surviving.