Khan was paid Rs. 1500 for writing 'Jawani Deewani'. His next offer soon came to him, and this time he was paid Rs. 10,000 as signing amount! Then one day, he happened to meet legendary filmmaker Manmohan Desai. Desai was then working on a new film and wasn't liking the writer's work. Producer Habib Nadiadwala took Khan to Desai and introduced him as a writer. But Desai wasn't an easy man to convince! "I have tried many newcomers. Where did you find this one now? If I don't like what he writes, I will tear his script apart", he frowned. Sure, Desai was a famous name. But Khan had a writer's ego inside! He said, "I am okay with you tearing my script. But what if you happen to like it?". "Main tumhe sar pe bithake nachunga," Desai giggled! That is how Khan and Desai's association began. At the same time, he also started working with another veteran filmmaker Prakash Mehra.