I am trying to minimize calls to ScriptResource.axd but i have failed. Below is the result
ScriptResource.axd
Uaing .Net 4.0, AjaxControlToolkit ver 4.1.60919.0 a
There was a DropDownList in which, at client side, ~30,000 records were being loaded. This was unexpected. I replaced this DropDownList with a lookup screen and things started working as expected.