Section 14(b) in Bihar Employees' State Insurance Medical Service Rules, 1981
(b)Promotion to Class I (Senior) of the service shall be made from amongst members of the Class I (Junior) of the service. The total strength in this category shall be 12 ½ per cent of the total cadre (officers promoted to this grade will be posted as Superintendents of Hospitals or as Insurance Medical Officer, Incharge of Employees' State Insurance Dispensaries):
