Judgement JAGAT NARAYAN, C.J. :- This is a special appeal against a judgment of a learned Single Judge in writ petition No. 79 of 1967*under Art. 226 of the Constitution by which he held R. 28-B (2) of the Rajasthan Administrative Service Rules 1954 to be void and parts of the circular dated 27-8-66 "bad" and in consequence issued a direction that the four officers of that Service who had been impleaded in the writ petition namely Sarva Shri R. D. Mathur, S. C. Pagoria, Munna Lal Goyal and Prithvi Singh shall not hold senior scale posts. * Reported in AIR 1970 Raj173. 2. The writ petition was filed by Shri Guman Singh, a member of the R. A. S. who was considered for promotion but was not promoted by the Departmental Promotion Committee to the senior scale, but the above four officers along with several others were promoted. These four officers alone were impleaded as they were junior to the petitioner in the ordinary time scale and the others who were promoted were senior to him. 3. The Rajasthan Administrative Service was constituted in 1954, and officers belonging to various covenanting States were appointed to it initially. Under the R. A. S. Rules 1954 (hereinafter referred to as the Rules) recruitment to the Service is made from different sources as enumerated in Rule 7. Broadly speaking one source is a competitive examination held by the Public Service Commission and the other sources are selections from specified categories of subordinate services. In 1957 an emergency recruitment took place in which selection was made from amongst other categories of subordinate services as well as from several other classes including persons in private service through the Public Service Commission which held a limited competitive examination. 4. The petitioner was an Inspector in the Excise Department from 1948 and was recruited to the Service from this source. Shri R. D. Mathur respondent, was also recruited from this source. Shri S. C. Pagoria and Shri Munna Lal Goyal, respondents, were recruited in 1956 as a result of a competitive examination held by the P. S. C. Shri Prithvi Singh, respondent, was promoted from amongst Tehsilders in 1957. 5. There are three grades in the R. A. S. :- (1) Ordinary time scale Rs. 285-800 (hereinafter referred to as the Junior Scale) (2) Senior Scale Rs. 500-1150. (3) Selection grade Rs. 900-1500. 5. There are three grades in the R. A. S. :- (1) Ordinary time scale Rs. 285-800 (hereinafter referred to as the Junior Scale) (2) Senior Scale Rs. 500-1150. (3) Selection grade Rs. 900-1500. In this case we are concerned with promotion from Junior scale to Senior Scale. Formerly this promotion was made on the basis of seniority-cum-merit on the recommendation of a D. P. C. Government had issued a confidential circular in 1960 No. F. 1 (6) Apptts. 'D'/60 dated 31-8-60 under which merit was to be evaluated by allotting marks on the previous record of the officer. This circular was applicable to all State Services except the Rajasthan Judicial Service or the Rajasthan Higher Judicial Service which are under the control of the High Court. 6. The System of marking was as follows :- "(i) Confidential Rolls for the last 5 years may be examined. 5 marks be allotted for each years' confidential roll and marking be done in accordance with the following formula :- 1. Excellent … 5 marks 2. Very good … 4 marks 3. Good … 3 marks 4. Satisfactory … 2½ marks 5. Unsatisfactory … 2 marks 6. Adverse … 1½ marks 7. Adverse with punishment … 1 mark (ii) The entire record previous to the last 5 years be allotted 50 marks and the marks be allotted on the following basis : 1. Average or good record, 50 marks. 2. Deduction upto 5 marks for each punishment awarded. (No deduction is made for mere warning but where warning has been recorded in a Confidential Roll it should be treated as punishment and marks should be deducted)." On the basis of the above marking only such officers were to be considered for promotion as had secured at least 62½ marks out of the total of 75 marks. If a junior person had secured more marks he was not to be preferred to a senior man who had secured at least 62½ marks. 7. It was stated that the above marking system was in the nature of administrative instructions which should be kept in view by various selection committees while making promotions to the various posts as provided in the Service Rules. 7. It was stated that the above marking system was in the nature of administrative instructions which should be kept in view by various selection committees while making promotions to the various posts as provided in the Service Rules. These committees were at the same time enjoined to exercise their own discretion while applying the principles laid down in the circular in view of the fact that occasionally the confidential rolls may not have been written with full sense of responsibility. 8. The above system of assessing merit has remained in force since then in Rajasthan for promotion t