HTC Desire X — Touch screen not functioning properly

Address:

Bangalore, Karnataka

I bought this brand new phone from Reliance digital MG Road,Bangalore. Within one month I faced problem with this phone as it was not getting booted up, gave it for service and got it fixed. Now after two months I am facing a new problem, my touch screen is not working properly, because of which I cannot unlock my phone, and even if I unlock my phone, I am unable to go through all apps. This phone has really given me a very hard time. I bought it for 18000 INR, but now it cost just 15000 INR. When I called HTC customer care number, I get busy tone and never get connected to them. Please help me in this regards.

Thanks
Ankitha