Sorry ... am so used to normal abap reporting. hence the term Standard Selection Screen . 
I was talking about the scope that is passed. It is correct that my Ct_data will have records of the selected scope, but my requirement is to get the scope itself. ie. There might be a case where my scope is to fetch data of category V1. in ct_data , there might not be any data for V1 for that particular time. Even in this case, I need to perform certain logic calculations based on the category V1. For this, I need the value V1 in the BADI so that I can perform the logic accordingly. Is this possible?
Suzie