First,a slight correction to your introduction.While Rafi did sing for Kishore in the films you mentioned, he did not sing for Talat himself in Lala Rookh,a film where Talat played hero to Shyama.The Rafi song "Hai kali kali ke lab par" was not picturised on Talat,but on an actor called "Majnu" who often played comedy roles during the time.This song, written by Kaifi Azmi, was set to music by Khaiyyaam.Anyway, this is not to detract from Rafi's greatness.There will remain only one Rafi, despite the clones.While he sang with equal dedication and sincerity for all composers and actors,I feel he put extra effort for SD Burman.I guess because Dada Burman was the only composer who used Kishore often as his main singer, ence Rafi was more motivated to prove his mettle.Whichever way,it was all to the benefit of us listeners.He is also particularly remembered for his great output with Roshan,SJ,LP,OP Nayyar,Madan Mohan and of course,Naushad. I'll try and select the tip of the master singer's iceberg. Din Dhal Jaye, Dil Jo Na Keh Saka, Unke Khayaal Aaye, Hui Shaam Unka Khayaal Aa Gaya, Aanchal Mein Saja Lena Kaliyaan, Main Nigahen Tere Chehre Se Hathaaoon Kaise, Madhuban Mein Radhika.
