Thanks for the reply..
code example i gave was just a concept what i am trying to get actually.
finalli i was able to get the values in Plugin execute method.but i have another problem.
I created a shared hash that have some scaler values and also holds the reference of other hash into it. when i m passing it. its gives me errro "Invalid value for shared scalar at....."
please help me how i can access a shared hash that have reference of another hash. Thanks.