HELD·. (l) The post of Director of Agriculture is a selection !'OSI and an ex-cadre post. Selection to it is made solely on the basis c,i merit and the question of seniority was not Televant. It is for the State Government to select the most suitable officer and for discharging that responsibiliy. it was open to the Government to seek the assistance of the Public Service Commission. The use of the word promoted in the letter was inappropriate· but the nature of the post cannot be changed by the Government using that word. Therefore, the High Court was not justified in going into the question df seniority, especially when there ws no complaint of m~la {ides either on the part of the Government or the Commission. [393 H; 394 B-C, E-F] (2) Rule 16 of the Rules regulating the Bihar and Orissa Agricultural Services Class I promulgated on April· 11, !935 is not superseded by the 1945 Rules which apply to Bihar Agricultural Service Class I, Bihar Agricultural Service Class II, General Provincial Service and special pools outside these cadres. The 1935 Rules do not come in the way of the: Government· making its selection to the post of Director, and R. 12 of 1945-Rules is not applicable. [395 F. G; 396 BJ