Dell India — inspiron 15 3000 being total crap

Address:

400055

The laptop randomly shuts down or sleeps. Pretty much like my grandpa. Only he does better work in between. Here i am in the middle of my online test and it shuts down. Even though the laptop has been plugged. Do not know what is causing this. Please help. I hope it is repaired. Or replaced. Asap.
I have bought it six months ago and this has been the problem form the beginning. Even updating the drivers did no good. Whats the use of buying a high spec laptop when i cant use it reliably. Today was the breaking point and i am totally unimpressed with dell. Would recommend others to skip dell.
I havent out pics because you already know how the laptop looks.