Free online test for preparation of CSS exams. Test include papers in the past by year. CSS (Central Superior Services) Subject Islamic Studies is one of the most important subjects when it comes to any education field so it is extremely important to have a strong grip on Islamic Studies. In order to help our visitors in clarifying their concepts about the various topics of Islamic Studies and also to test their knowledge about it. CSS or Bureaucracy is an elite permanent bureaucratic authority, and the civil service that is responsible for running the civilian bureaucratic operations and government secretariats and directorates of Pakistan. PPSC , NTS ,OTS, JTS, BTS, PTS, FPSC , PMS, KPPSC Past papers and books for preparation of test and jobs.