Two National Awards as Best Actress and an experience of over three decades in Bollywood has taken Tabu to space where there is no room for self-doubt, but the acclaimed actress reveals that even today she questions herself a lot before signing a new project.

"(It's) Not self-doubt, but I try to ask myself lots of questions before saying 'yes' or 'no' to a project. I want to be sure because that is important for me. I ask myself, 'why am I doing it?', or 'why don't I want to do this particular thing'? When I am convinced with my answers, only then will I go ahead with it. However, a film's becoming successful or not is a chance that everyone takes," Tabu told IANS.