Ever since it was announced that Imran Khan's hit film Delhi Belly will be remade in Tamil with Arya, speculations have been rife about the rest of the cast particularly the heroine. Kannan will be directing this film. Now we hear that the makers have approached Nayanthara for Shenaz Treasurywallah's role as it is well known that Nayan is always open to experimentation and loves playing quirky characters. The actress was spotted last at the house …