Dell India — Dell laptop not working

Address:

500033

I have given my laptop(Which is under warranty) to service centre at 1-8-303/34-1, g-5, may fair complex, sp raod, secunderabad, hyd-500003, on 7/4/16 with dsp ref no:enq/dghyd/16-17/0000154.
Since then i have waiting for their reply, i visited again on 12/04/16 to know the status of my laptop. There has been no response from their team. They do not pick up the phone also. Even today we called up them there is no response. They still say that they are waiting for some material to come from their head office.
Dell after sales service is very bad. Infact disgusting, after paying 76k for my laptop (6months old) .I would advise all my friends not to buy dell products because its poor after sales support.