I personally use the HAF 912 Combat with side panel, and have purchased 4 LED Fans to add to it, the 2 Fans that came with it are non-LED.
Thus I have the 2 non LED fans in the front, 2 Red LED fans on the top, one Red LED on the rear and one Blue LED on the side.
It gives a superb airflow and keeps the dust out in a negative airflow setup.
That should cost you around Rs. 5500ish.
Hope I helped.
I can give a better answer if you tell me which ciity you live in or from which site you will be purchasing from.