When I searched on google for AirAsia, the first result was airpaz. It looks like the official AirAsia site and I thought it's their site. This is a scam, they charge almost 500 Bhatt fee for a 2300 flight. And it happens for all payment methods, so why not include it in the price.
It wastes people time registering and filing details and maybe missing this addition when they pay. And they also think they book direct.
They don't even mention near the original price. When I went to AirAsia site. The price was 2000 and no booking fee.