Very poor response to a deadly issue

I purchased this car 7 months back and have driven it for 13k kms. Recently I had a near death experience when steering wheel froze while driving at 100 km/h. I was lucky to stop the car before hitting side barrier. Service center changed the parts but couldn't explain why it happened in such a new car. Now I have zero confidence in driving it. Customer service said Tata is not responsible for it, it is driver's responsibility, we can just fix the problem.