Vacant Central Superior Services (CSS) posts have piled up during the last decade primarily due to the lack of suitable candidates from Sindh, Balochistan, GB, and AJK, and the failure of women and minorities to fill up their reserved quota.
As a result, vacant CSS positions increased with each passing year since 2010 and reached a point in 2019 when almost half of the total CSS posts remained unfilled.
According to the official data, there were 271 CSS vacancies in 2010, against which 205 appointments were made. On the other hand, in 2019, out of the total 410 CSS vacancies, only 214 were filled and 196 remained unfilled.
Here is a breakdown of total CSS vacancies, appointments, and unfilled posts from the last 10 CSS exams.
| Exam | Vacancies | Appointments | Unfilled Posts |
| CSS 2010 | 271 | 205 | 66 |
| CSS 2011 | 285 | 239 | 46 |
| CSS 2012 | 252 | 222 | 30 |
| CSS 2013 | 266 | 195 | 71 |
| CSS 2014 | 315 | 233 | 82 |
| CSS 2015 | 333 | 238 | 95 |
| CSS 2016 | 351 | 191 | 160 |
| CSS 2017 | 484 | 260 | 224 |
| CSS 2018 | 466 | 278 | 188 |
| CSS 2019 | 410 | 214 | 196 |
Former Member of Federal Public Service Commission (FPSC) and Secretary Finance Abdul Wajid Rana recommended that both women and minority groups should be encouraged to appear in CSS exams so that they serve civil services just like the Pakistan Army and Air Force.
PTI MNA Dr. Ramesh Kumar has requested the FPSC to relax the criteria of CSS exams for minorities as most of them belong to impoverished backgrounds.
He also suggested FPSC advertise the number of carry forward CSS vacancies of minorities to encourage their participation in CSS exams and improve their representation in civil services.