Xiaomi India — Touch working automatically , Hanging the phone

I have purchased the phone on[protected].And i was able to properly use only for 2 months.The touch works automatically and a sound comes from phone and a pop up google page comes.Ihad given to service centre banglore and thy told the problem is resolved.Still i faces the serious issue.I cannot even use t for day to day activities .I need ma complaint to be resolved.Else i will take action against this.