"I think when you are playing a role, you are more sincere towards your role more than anyone else around you. If there is a good actor with you, you put in more effort. That challenge is very good for everyone," Sara said here in an interview.
"I am very happy that I worked with Aditi and now we are friends. We shared a lot of food and stories," she added.
Directed by Vishesh Bhatt, "Murder 3" also stars Randeep Hooda and hits theatres Feb 15.
Photos: Priyanka Chopra's family, celebs watch 'Ventilator' at MAMI
Photos: Raveena Tandon, Sohail Khan at Marathi film 'Bhay' music launch
SRK-Gauri anniversary: B-Town stars and their non-filmi better halves
Birthday special: Popular mothers and daughters in Bollywood
Spotted: 'Kaabil' star Hrithik Roshan with dad Rakesh Roshan