Update = After completing troubleshooting, a DELL-Cares agent setup a part replacement.
I had been buying dell laptop//hardware for last 15 years i think. But i think that now i am fedup with dell customer support , its behavior and arrogace that its customer support team has before any one accuses me of being fake, services tag of two devices that i have are . One of them with in an year it has faced hardware issue.. harddisk gave error 0142 .  Then wifi connectivity is always bad  when you reach out to customer support, they will make you run from one phone number to another.  and they way they talk to you..as if they are kings of some place and doing us such a big favor by resolving issue of a laptop which is under warranty.  sending mails after mails is useless. its like everything is going in a dustbin in dell tht no one reads   i really dont want to buy a dell ever again.. Dell can keep its arrogance.. 
dont want too buy dell again, behavior of customer support employees is worst..