This was an interesting one. Learnt couple of tricks in the process
1. Converting the data to column headings to use them as drop down values
2. Using View>Interface Designer to show the results from Browse tool in the Interface application
Created a little workflow to automatically fill the options in the Dropdown tool. The value selected there replaces the value used in the "CONTAINS" formula in Filter tool. This one is great to learn some more about Analytic Apps!