CSS Exam stands for Central Superior Service Exam. CSS Exam is conducted by the Federal Public Service Commission (FPSC) Islamabad for the selection of candidates in 12 groups.
mcqser.com provides you a facility to approach on CSS MCQs preparation
The Central Superior Services is a permanent elite bureaucratic authority and the civil service that is responsible for running the civilian bureaucratic operations of Pakistan. The Prime Minister is the final authority on all matters regarding the civil service.

The Central Superior Service defined itself as “key wheels on which the entire engine of the state has to move.” Derived from the colonial legacy of the former Indian Civil Service, the civil service came into its modern formation immediately after the establishment of Pakistan as a “Civil Service of Pakistan”.
During its time of formation, the bureaucracy produced Ghulam Ishaq Khan who would go on to become the President of Pakistan. It had an influence on many of the state’s defense, internal, foreign, and financial policies.
In 1971, it was re-organized and reestablished the Constitution of Pakistan which gave it foundation and constitutional status. The civil bureaucracy closely collaborated with the military establishments of the Pakistani Armed Forces in issues concerning national security.
The Central Superior Service consists of 12 directorates that provide vital office and secretariat-related duties to the Government of Pakistan. The provincial bureaucracies are headed by the respective Chief Secretaries of Khyber Pakhtunkhwa, Sindh, Punjab, and Balochistan.