I had the same issue in the top right and top left, I pulled the screen off and cleaned behind it. It was just dirt on the screen ( smoke ) I am a smoker. Anyway it took care of what I thought was a burned screen.
Hey Kehaan,
Its just dust in there, You should've taken a couple of suction cups, pulled the so called glass and wiped it with a cloth.
Max 5 mins, Its that easy.