How did the idea of a film on two playback singers who are also sisters come about?There is only one real-life source in the industry...Do you fear legal action by the Mangeshkar family?Is that why you refused to produce Saaz?Critics think your film is perhaps half-an-hour too long. Do you agree?One surprise is Aruna Irani as the Lata-type character. Was she your choice?You've made only six films in the last 20 years. Why?Which ones?What are you working on now?Any plans for another feature?