Tata Motors — Tata Nexon BS6 steering serious issue

Bought tata nexon XM diesel on 23th Nov 2021. Within one week during driving on highway coolent pipe got leakage in night. Vehicle breakdown for whole night. Then again today's I.e. on 29th may 2021 most serious incident happened. During running at 60 speed suddenly steering wheel became free and due to it car became out of control.but fortunately I was able to control car with the help of hand break otherwise major accident will take place which may cause dead also. If same incident is happen again then we will be responsible. For new car within 6 month I have faced these two big problem while running . Which is too serous or may lead too major accident and dead also.

I want explanation with root cause and further corrective action on return paper.

Kindly revert.