Which car manufacturer in India is safest?
The short answer is none.
None of the Cars that are manufactured in India have received a 5 Star safety rating.
All hatch backs are equally unsafe. If you go for European makes VW, Audi, BMW, Mercedes, skoda, Volo. They are far better / safer than Indian counterparts.
If you go for sedans, then any Honda, Toyota, Chevrolet, Ford; all are good in terms of cabin safety.
In SUV's, Ford endeavour is the best in the segment, no other car in the same price range can come close to it in terms of cabin safety.
Ideally prefer a solid monocoque body, for best safety.
The older ladder on frame bodies are excellent in terms of safety for larger cars (suv).
I hope it helps.