Defective Gearbox and engine in new automatic creta 2019 1.6sx

I bought a new petrol automatic creta from dealer peeyesyem Hyundai, Chennai. I had a near fatal experience because of the sudden engine halt in a highway... The car's problem started in less than a month and less than 800 km.. I strongly condemn Hyundai for being evasive and not replacing my car. The car is with Hyundai service for more than one month without me getting a detailed report.... Poor quality make... Most unsafe car.. Sheer unprofessional way of handling the situation and customer... Discourage buying automatic creta...