Lava Mobiles — phone touch misbehave

Address:

Sri Muktsar Sahib, Punjab, 182201

Sir my lava z60 phone from yesterday suddenly its touch mis behave sometimes it works and some times it does not work in a specific location on the screen and phone is in warranty there is no other problem in my phone and where the touch does not work at that specific point the phone gets hot and when i lock and unlock my phone or i clean the screen of my phone after cleaning it starts working but unfortunately it again stops working