Johar began shooting for his directorial venture in the UK capital yesterday.
"Thank you to the #Housefull3 boys!!! Thank you for coming to wish us today!!! @juniorbachchan @Riteishd @bomanirani," Johar posted on Twitter along with the picture of them.
"Ae Dil Hai Mushkil", which dwells on relationships and heartbreaks, also stars Ranbir's "Bombay Velvet" co-star Anushka Sharma and actress Aishwarya Rai Bachchan in lead roles.
Abhishek, Riteish and Boman are in London to shoot the third comic franchise of "Housefull", which also has Akshay Kumar.