HTC — Warranty cover not given

Address:

Giridih, Jharkhand

I have purchased a htc desire 601 dual sim mobile handset in the month of april 2014. After two months camera of the same is not working, i have given it to the service centre at dhanbad for repairing, but after some days they sent a mail containg a quotation for camera part replacement quoted that liquid has been found inside the camera and no warranty will be covered.
As i am sure that no liquid has been entered in the camera, service centre as usual does not want to cover the warranty and harrasing me.