Karan Johar uses Alia Bhatt's name to dine at London restaurant, staff denies entry; Sara Ali Khan shares his embarrassing moment [Watch]

Karan Johar asked the staff if Alia Bhatt has booked a table for them at the restaurant. The staff straight away denied them entry. Karan tried to convince him but the staff didn't listen. Sara Ali Khan shared Karan's embarrassing moment on Instagram.