Filmmaker #KaranJohar  hosedt a grand bash at #YashRaj Studios in #Mumbai last night, in celebration of his 50th birthday. The party was attended by #GauriKhan, #ManishMalhotra, #ShwetaBachchanNanda, #AyanMukerji, #FarahKhan, #ApoorvaMehta, #MaheepKapoor and others