Playwright Ayad Akhtar talks about the play “Disgraced,” along with actor Aasif Mandvi, who plays the lead role. The play tells is the story of a successful Pakistani-American lawyer who is moving up the corporate ladder while distancing himself from his cultural roots. When he and his wife Emily, a white artist influenced by Islamic paintings, host a dinner party, what starts out as a friendly conversation escalates into something far more damaging. “Disgraced” is playing at Lincoln Center Theater and has been extended through December 23.