Veteran actress Shabana Azmi has revealed that she was initially unsure about being a part of her upcoming film “Chalk N Duster”. The 65-year-old actress, who is sharing screen space with Juhi Chawla for the first time in the education drama, said her co-star encouraged her to take up the project. “I was pretty unsure about the film because the makers of the movie are not familiar to me. I met Juhi and she convinced me to take up the project.” In the film, directed by Jayant Gilatar, Shabana plays a senior mathematics teacher of a Mumbai-based high school. “My role is very different. I play a middle class school teacher. So, I had to look very different from the way I am in real life. I had shopped on my own for my look.” “Chalk N Duster”, released yesterday, highlights the problem of teachers and students where teaching way in the education system is changing day by day.