Family Welfare Department, dated 07.07.1976, they have to pass the Account Test for Executive Officers and Departmental Test in Tamil Nadu Medical Service within the period of probation / within the period of 4 years, respectively. As acquisition of qualifications have been mandated as per the adhoc rules, the petitioners were directed to acquire the same. The Government had appointed 136 candidates including the petitioners selected by the Public Service Commission on regular basis with effect from the dates mentioned against their names or from the date of taking charge of the appointment, as the case may be, vide G.O.Ms.No.118, Indian Medicine and Homeopathy Department, dated 07.10.1987. As per G.O.(Ms).No.429, Personnel and Administrative Reforms (Per.P) Department, dated 17.04.1986, the date of commencement of probation of 137 candidates, who are to be appointed as Assistant Medical Officer regularly with retrospective effect from the date of their temporary appointment should not be earlier then the date of commencement of probation of junior most person, who is already in service as Assistant Medical Officer on regular basis. As per the Tamil Nadu Government Servants (Conditions of Service) Act, 2016, the date of commencement of probation of junior most person already (viz., Dr.G. Thilagavathy-a candidate selected by the Tamil Nadu Public Service