As an international airport, you would expect that the wi-fi would be free and very easily accessible. I didn't have my Indian mobile number with me. So, I had to go to the counter which were not accessible at all locations, to give me a coupon with details. I mean SERIOUSLY !! You are a so called growing country. Grow up ! Make wi-fi accessible to all internationals, instead of getting coupons and crap. I mean you are hosting G20 this year. Make it smooth and easy instead of mucking around.