If you are looking for an app where you can get past papers of the CSS exams, then this app is for you. In this app you will find CSS Past Papers of all years.

It includes papers of all subjects ; compulsory and optional.

The papers are categorized group wise.
Past papers are the best source of preparation for the css exams. They help you in examine and understand the nature and kind of the questions which you may be asked in the exams to answer. So by reading past papers you can better understand and attempt the actual paper.