When Taare Zameen Par director Aamir Khan criticized legend Amitabh Bachchan’s character in renowned flick Black, Big B hit back by saying “’May be the performances in Black did go over Aamir’s head”. Knowing that he had upset one of Bollywood’s greatest actors, Aamir Khan tried to apologize. But, Mr. Bachchan was not going to have any of it. He refused to answer Aamir’s phone calls. However, late on Tuesday afternoon, Aamir took an unprecedented step by making an unannounced visit to the sets of Sujoy Ghosh’s Alladin, where Amitabh was shooting.