The following video explained how the asynchronous activities or calls were performed in the Asp.net. This is the simplest example I found as it helped me to understand how it works. Scott Hanselman in this video, explained how these asynchronous call works on Asp.net MVC application ; as I did’nt use MV while developing my project so do not have much knowledge about it. He explained it through by taking an example of a simple program code and he also used a filter which is a stopwatch to show the exact runtime for both synchronous and asynchronous calls.