Mahindra And Mahindra — i found from lots of places the paint of the car was vanished and rusted iron sheet can be seen

I buy nuvosport n8 in aug 2016, i am regular customer of mahindera from 2006, this nuvosport is my fifth car from 2006, and first time i was facing a strange problem with my car body paint. I found from lots of places the paint of the car was vanished and rusted iron sheet can be seen. And this problem is increasing day by day, and i am shocked how company like mahindera is doing the work carelessly. I want solution as soon as possible.