Final film of Dilip Kumar.
The shooting of Qila was completed very faster than any Dilip Kumar film. This film is the first film of Dilip Kumar, in which he completed his work very quickly. In this film Dilip and Rekha are together for second time, the first is the unreleased Aag Ka Dariya.
Mukul Dev replaced Anil Kapoor in 2 important big. banners films, N.Chandra's Wajood with Nana Patekar. & F.C.Mehra's Qila. with. Dilip Kumar. Music composer Anand Raj Anand got 2 important big banner films at the earlier stage of his career, when. he. was. a. newcomer. Dilip Kumar's-F.C.Mehra's Qila & Amitabh Bachchan's-Tinnu Anand's Major Saab.
The song "Wah Bhai Wah" was copied from a pop song filmed on Ravi Kishen and Vibha Dutta Khosla called "Wah Bhai Wah".The song is on youtube under the name "Wah Bhi Wah".
Playback Singer Amit Kumar, for the first time got to sing for Dilip Kumar in Qila.