When asked about doing research for a popular character like Nargis Dutt, Manisha Koirala said, "Everything about Nargis Dutt is out there, there are people who knew her, who I talk to and there are books on her as well. Above all, I have a director like Raju Sir (Rajkumar Hirani) who has done all the research by himself. So I just have to follow what he says."
Apart from Raju Hirani's research, Manisha did get some more help from Nargis' daughter Priya Dutt, who shared some books and anecdotes about the legendary actress.
Initially, Manisha Koirala had some apprehensions about playing Sanjay Dutt's mother as she has acted opposite him in several films in the '90s - among them Yalgaar, Sanam and Kartoos - but clearly Mr Hirani somehow managed to convince her to take up the role. Watch: Manisha Koirala speak to NDTV.com
Rajkumar Hirani's Dutt biopic, which stars Ranbir Kapoor, Sonam Kapoor, Paresh Rawal, Vicky Kaushal and Karishma Tanna apart from Manisha Koirala, is gearing up for a Christmas release.