Yeh Dil Deewana Hain was sampled by Onra for his song "Onra The Spy" for his International album 1.0.8.
Yeh Dil Deewana Hai was sampled in the song " Hit No.3 (Yeh Dil Deewana Hain)" by Bagula Bhagat from the album L S D Burman.
Ishq par zor nahin was just average on 1970 s box office...music was big hit