Isha Ambani is daughter of Mukesh and Nita Ambani and Anand Piramal is son of top industrialist Ajay and Swati Piramal of the Piramal group. The engagement party, thrown by Mukesh and Nita Ambani, saw many Bollywood heavyweights like Karan Johar and Aamir Khan in attendance. Karan Johar came in the same attire he wore for Bollywood actor Sonam Kapoor’s mehendi party. He looks pretty much dressed for the occasion. The rest, including Aamir, Ranbir and Shah Rukh, kept it casual and chic in western formals and semi formals.