The actor, who watched the movie here on Monday, tweeted: "Loved 'Neerja'. Very inspirational and moving!Sonam is outstanding! Shabanaji has given a performance of a lifetime! Well done Ram! Must watch!"
The film, directed by Ram Madhvani, tells the real life story of Neerja Bhanot, an air hostess who lost her life while saving others on a hijacked plane.
She was awarded the Ashok Chakra for saving several hundred lives as an air hostess on the hijacked Pan Am Flight 73 in 1986.
Sonam features in the lead role, while Shabana Azmi essays her mother's role.