Actress Vidya Balan was initially skeptical to take up the role of a Punjabi housewife in her forthcoming movie 'Ghanchakkar'.After doing intense roles in 'The Dirty Picture' and 'Kahaani', Vidya was nervous to step into the unfamiliar territory of a comedy movie with 'Ghanchakkar'."When I was offered this role, I thought I could not do it. I am glad my director convinced me. I had fun doing this quirky film. I hope people enjoy it too," Vidya told reporters here at the audio launch of 'Ghanchakkar'.