The Bollywood extravaganza IIFA 2017 has begun with a bang with celebrities dressed to their nines to participate in this much awaited event.Katrina Kaif shimmered at the green carpet donning shiny golden blouse pairing with bright red ruffles sari. Kriti Sanon on the other hand impressed the fashion police spreading 'Cinderella' vibes wearing a princess-like-dusky pink dress.