Malayalam star Prithviraj Sukumaran had no idea that one of his next actors that he would cast in L2: Empuraan would turn out to be Bollywood superstar Aamir Khan's sister. Nikhat has previously acted in in the short film, Khidkiyan, and the Shah Rukh Khan-Deepika Padukone starrer, Pathaan, as well as projects such as Tanhaji and Saand ki Aankh, among …