The film, which will mark Johar's return to direction after 2012's "Student Of The Year", stars Ranbir Kapoor, Anushka Sharma and Aishwarya Rai Bachchan.
"And the location hunting begins!!!! #aedilhaimushkil," Johar posted on Twitter.
"Ae Dil Hai Mushkil" is slated to release in mid-2016.