- The film Ek Dil Sau Afsane starred Raj Kapoor and Waheeda Rehman in the titular roles. Despite a stellar cast, the film did not fare well at the box office when it was released.
- Over 50 years later, the film has become unexpectedly popular. However, the reasons for its sudden popularity are unclear.
- Technically, there is no provision for referendums in the Indian constitution. However, one precedent of a referendum in India was the Goa Opinion Poll held in 1967 to decide whether Goa should join India.