Aap Ki Kasam (English: I swear by you) is a 1974 Indian Hindi romance film produced by J. Om Prakash, which also marks his directorial debut.

The film stars Rajesh Khanna, Mumtaz, Sanjeev Kumar, Rehman, Asrani and A. K. Hangal.

[1] The film was later also remade in Telugu, retaining the original ending, by director Dasari Narayana Rao as Edadugula Bandham, (1985) starring Mohan Babu and Jayasudha.

Mohan comes and asks Sunita to tie a rakhi on him to help convince Kamal of their innocence, but her father rebuffs that idea too.

Kamal sees the wedding ceremony happen, unfortunately, a fire breaks out in the marriage hall causing a huge ruckus.

All lyrics are written by Anand Bakshi; all music is composed by Rahul Dev BurmanThe Hindu in its review of the film, quoted: "In a remarkable scene, where Rajesh Khanna, his anger simmering, confronts Mumtaz, the director, J. Om Prakash, brings out the performer in both.

Mumtaz brings compelling expressions to her countenance as her initial disbelief at being doubted by her husband is transformed from anguish to fury in a flash.

This remains the standout moment of the movie apart from the song "Zindagi Ke Safar Mein Guzar Jate Hain Jo Maqaam".

[2] Sampada Sharma in her retrospective review for The Indian Express stated "The film has a lasting effect, and that is mainly because it does not pander to the idea that life is an endless pool of opportunities.