@VigneshR8038  You must get the clipboard text from a UI Thread. If you have a UI in your solution, then you can use a button click on that UI to trigger the method and acquire the text. I created a sample solution that uses a UI with a 100% opacity (so it is essentially invisible). You may use the P_GetClipboardText automation as you would any other and it will trigger a UI event to acquire the text and return it.

This is really the easiest way to get threads onto the UI thread without coding something in C#. You could also use the AllProjectsStarted thread, but that is only really useful when you are starting up.