Ishq Par Zor Nahin (1970) bollywood/romance movie starring Dharmendra, Sadhana, Biswajeet, produced by Suresh Saigal. Amar, a rich man, introduces Ram, his poor friend to his father. His father hires Ram conditionally. Amar loves Sushma and asks Ram to write her a love letter on his behalf. But Sushma falls for Ram. The soundtrack features songs like Yeh Dil Deewana Hai sung by Asha Bhosle, Lata Mangeshkar, Mohammed Rafi.