Paresh Rawal, who portrays Sunil Dutt in 'Sanju', said he was destined to play the role. Talking about the special connection he has with Dutt, Paresh revealed that in 2005, Dutt wrote a letter to him. Paresh added that while preparing for 'Sanju' in 2017, he received a call from his wife asking him what to do with the letter.