Ranbir got upset with Anushka, Alia was the first choice-- Check out these juicy facts as Ae Dil Hai Mushkil turns 6

6 years ago today, Karan Johar introduced the world to Ayan, Alizeh and Saba with his romantic drama Ae Dil Hai Mushkil. While Ranbir Kapoor, Anushka Sharma and Aishwarya Rai Bachchan won hearts with their impeccable performances, the story-line left us wanting more. It was a visual treat which also gave us chartbusters for every mood! As the blockbuster hit completes 6 glorious years, here’s a look at some interesting facts.