Asus India — Problem facing by my laptop

Sir,
I had purchased a laptop a year ago of cost 42000... Form the day onwards it wasn't working properly... I had given in the authorized service centre many times... But it wasn't working properly... When i started to work on my laptop with in the 5 r 10 min it shows that your pc ran in to problem we will restart your system soon... And restarts the system... How can i over come this problem... Is there any chance to replace my laptop... I was ready to pay extra amount to...