Ranbir sings Channa Mereya apparently at Anushka's wedding and she realises a little too late that Ranbir is actually in love with her. After the evocative lyrics, the end line of the song - "Ek tarfa pyaar ki takat hi kuch aur hoti hai..." - suggest that Ranbir's deals with a broken heart as Anushka is about to get married.
The song composed by Pritam is sung by Arijit Singh and written by Amitabh Bhattacharya.
Ae Dil Hai Mushkil also stars Fawad Khan while actors Shah Rukh Khan and Lisa Haydon have cameos. The film releases on Dilwali when it will clash with Ajay Devgn's Shivaay.