I visited this mall several times when I was in Chennai. Everytime I visit I had the guilt that I couldn't afford anything there. Not even a hot drinks like tea or coffee.
The vendors inside would charge like anything and exaggerate the cost of common things.
I can understand it couldn't be helped for the inflation, but my advise is if you make the costs reasonable then you'll more more visitors and more profits.
Pro-
.Big place
.Good ambience
Cons-
.Too expensive
.security guards will treat you like not welcomed, when you don't groom or dress well
.parking cost is also expensive
.you'll end up more than half of movie ticket in parking