For me chennai anna international airport is the worst airport in maximum aspects.
According to my personal views I am pointing out the flaws.
First of all traveling to the airport is a big challenge in this hectic traffic. Coming to infra stracture it is below average and AC inside hardly makes you cool in this scorching heat of sun.
Sitting arrangements is quite clumsy and there is too rush to have a stand also.
Check in security formalities takes long time. So noisy there due to crowd that you hardly can listen the announce table. Bad place to check in.