HTC Mobile One V — Mobile got non-functional

My mobile phone (HTC One V ) got non-functional within 2 months of purchase.

There was no physical damage or mishandling of the handset, but it still got damaged. Seems that the mobile had some manufacturing defect.

i had given the same for repair at kolkata on 10.7.2012. but till date i have not got any firm reply on the status. the service centre at kolkata (Global traders) had said that the same will be repaired within 10 days. but i have been constantly following up at the service centre as well as the customer care, but everytime i get that the spare part is not available. i don't know what service centre is there that they don't maintain spares. also, the spare part could not be managed for the past 15 days.
i don't know when & in what condition will i get my mobile back?

Pls. help.