HP / G6 Notebook — Faulty unit & bad support

Address:

Gautam Buddha Nagar, Uttar Pradesh

I bought a HP G6 notebook in Feb 2012.After 2-3 months of normal use it started hanging and showed some other defects.I submitted the notebook in service center and got it back after 10 days.Again after 2 days same defects could be seen .I again went to the service center but the executive sent me back saying that I have on site warranty on my unit. So I raised a request for onsite visit.An engineer came and could not find the fault & suggested to run recovery on the system. I ran the recovery myself and tried again.But again my issue was not resolved.So after contacting HP again another engineer visited me and did some service on the unit.But he could not resolve the issue again.
So one more time I contacted HP with a video clip of my problem.Again they asked me to submit the notebook for full checkup.Still I got the unit back with same problems.
Now I asked for a replacement but they asked me to submit it once more and that they will extend my warranty for 4 months.As I was moving out of station for 5 days I asked for a stand by.They took 3 days to again pick up the unit and deliver the stand by.
After returning from my trip I got a call from the center that issue was found and resolved.But since then it has been 10 days but I did not recieve my unit back.On contacting them several times I get assurance that it will be delivered but still i am waiting.

I have been writng mails and calling HP since June 2012 but still my issue was not been resolved . I even lost my data stored on the system several times.My work has suffered to a huge extent.After so much wastage of my time and mental harassment I want to lodge a complaint in consumer court . Please suggest the process.