Sony India — LCD problem in Xperia M

Address:

Chennai, Tamil Nadu

Dear Sir I bought sony xperia M in November and a week back its LCD got some problem and half of it has got scratches while the touch pad is working fine.All softwares are also working fine.I visited the Tambaram located service Center where people were talking in a very pathetic way. Even the manager is refusing to submit the phone telling if you want to submit you have to pay.Kindly tell me the procedure to change the LCD as the phone is still under warranty.Please donot left the only choice to register a case in consumer court.