Dell India — Inferior product quality of newly bought laptop

Address:	Gurgaon, Haryana, 122002
Website:	www.dell.com/support/home/in/en/indhs1/product-support/servicetag/glqsqh2/diagnose

I have purchased Dell Inspiroon 5577 laptop on 27th May 2017, (price 73000) from Gurgaon.
But, after only 1 week of purchase, I am having significant performance issues in the same; the laptop is taking too much time to load, even simple functions take to much time to open, system freezes & neither keyboard nor touchpad is accessible at that moment.
Most disappointing of them all is the speaker goes off suddenly; no audio can be heard when anything is streamed or played on the laptop.
Moreover, the customer care executives were very efficient in delaying providing necessary solutions & keep saying that, "keep patience-we will not let your money be wasted."
It is very upsetting to witness such level o[censored]nprofessionalism from such big company like Dell.
In future, I'll definitely not buy any product from Dell India & refrain others from purchasing the same.