It is interesting what I heard happened in the process:
1. Assume 20 recruits were required from a locality
2. Days before, 15 candidates were selected through backdoor/corruption
3. On the day of recruitment, all the candidates are sent on a marathon (of course minus the 15 pre-selected buggers)
4. Pick the first 20 top runners and close the gate, the rest can choose to go home or remain panting
5. Put the 20 top runners through a thorough physical checks
6. Pick 5 of them genuinely, and disqualify 15 (very smart if you ask me).
7. Now shortlist 5 qualified + 15 backdoor candidates = total 20. Bingo!