Not only kms driven, but kms above a given speed driven. If you've been to India, a lot of the driving in cities is at extremely slow speeds such that death is a rare outcome for collisions.
And also, a lot of the driving is on scooters/motorcycles/other vehicles with far more chances of bodily injury and death than in other places, so it's basically impossible to make any comparison.
You also need to consider that the same car in different countries will be tailored to the local regulations in terms of safety equipment - which in India is quite lax. For example it only became a requirement in 2019 that cars are fitted with ABS and a driver airbag (passenger airbags are still optional):
