If it is passed into law, the move will see more than 45,000 village elders get into the civil service.
Justice Ogutu Mboya dismissed the petition and said the residents are not deserving of the orders they had sought, for lack of sufficient grounds to stop the government's plans.
Mengich emphasised the importance of retaining the current retirement age, citing concerns over increased pensionable liabilities and the premature disposal of experienced employees.