When I presented the singers list, some people were surprised that films are listed for years after these singles were dead. For example Mukesh died in 1976 and I had number of films listed for 1985. Of course, the obvious answer is that the songs were recorded when he was alive but were not used at that time, they were used later. Here's an example of a Mukesh song from 2001 from the Mukesh Geet Kosh by Harish Raghwanshi.

Now You Know!