This is one of two movies Shammi Kapoor and Vinod Khanna played siblings. In future films when Shammi Kapoor started playing elderly roles, he played his father or father-in-law or patriarch. The other is Jaane Anjaane.
Film had Shammi Kapoor playing lead role for the final time.Thou Chote Sarkar came in 1974 it was a delayed film which was started in 60s.
Boxoffice disaster due to Shammi Kapoor's weight gain.