Summarize the following court judgment. Civil Appeal No. 1109 of 1973. Appeal by Special Leave from the Judgment and order dated the 10th March.	 197 ' ' of the Punjab and Haryana High Court in L.P.A. No. 714 of 1970 and Civil Appeals Nos. 1411 1314	 872	 873	 1369 and 1582 of 1974. F. section Nariman (In C.As. 1109 and 1582)	 Harbans Singh (in C.A. No. 1109/73) and O. P. Sharma	 (In all the appeals)	 for the appellants. Hardyal Hardy	 section K. Mehta and M. Qamarrudin	 for respondents No. 1 & 8. V. C. Mahajan	 Urmila Sirur	 section C. Agarwala and V. J. Francis	 for respondents Nos. 2 5	 9 12 and 15 21 (in C.A. No. 1109/73). Urmila Sirur	 for respondents 2 7	 12	 13	 15 18	 20 22 26	 27 30	 32 36	 38	 41	 44 46	 50 57 & 59 62 (In C.A. Nos. 1411 1412/ 74) and for all the respondents in (In C.A. No. 1414/74) Except Respondent No. 113 and respondents Nos. 1. 3 16 and 18 23 (In C.A. No. 1369/74). F. V. C. Mahajan and Urmila Sirur	 for respondents Nos. (All respondents in C.A. No. 872/74)	 and respondents Nos. 1	 2	 4 54	 5681	 83 and 85	 (In C.A. No. 873/74) and respondents Nos. 1 214 (In C.A. No. 1582/74). Balak Ram	 for respondent No. 245 (In C.A. No. 1582/74). G The Judgment of the Court was delivered by RAY	 C.J. These appeals are by special leave from the judgment dated 10 March	 1972 of the Punjab and Haryana High Court. The respondents were teachers in the former State of Pepsu. On 1 November	 1956 the former State of Pepsu merged in the State of Punjab. These teachers claim the revised scale of pay as well as the posts of Masters. Their claims are based on these grounds. First they have taken the Degrees in Bachelor of Teaching or its equivalent. Second	 the letter dated 23 July	 1957 which became effective from 531 1 May	 1957 entitles them to the revised grade if they took the Degrees in Bachelor of Teaching or its equivalent. Third	 the letter dated 7 November	 1958 entitles the respondents to the posts of Masters to the extent of 25 per cent of the vacancies. The letter dated 23 July	 1957 is addressed by the Secretary to the Punjab Government. The letter is on the subject: "Revision of Scales of pay of low paid Government servants". The letter states that after carefully considering the recommendations made by Pay Revision Committee it has been decided that the existing scales of pay of certain categories of posts should	 with effect from 1 May	 1957	 be revised as shown therein. It is	 thereafter stated that it has been decided that all teachers according to their qualifications should placed in the following two broad categories: Category 'A ' B.A./B.Sc./B.Com./B.Sc. (Agriculture) and B.T./ Diploma in Physical Education/Diploma in Senior Basic Training. Category 'B ' consists of four groups. The first group consists of Matriculates with Basic Training (including Junior Teachers). The second group consists of Junior School Teachers (including Assistant Mistresses with B.A./Inter Matric Plus J.A.V. Training). Groups III and IV are also mentioned which are not relevant for the purposes of these appeals. Thereafter the crucial portions in the letter are these. For category 'A ' the scale of pay is Rs. 110 8 19/10 250 with a higher start for M.A. Or M.Sc. as at present. The existing per centage of posts fixed by Government for the scales of Rs. 110 8 190/ 10 250 and Rs. 250 10 300 should remain unchanged at 85 per cent and 15 per cent respectively. It may be stated here that the scale of pay of Head Masters being item (1) in Appendix is Rs. 250 10 350. The scale of pay of Masters	 Science Masters	 Agriculture Masters	 Clerical and (Commercial Master and Assistant District Inspector of Schools is Rs. 250 10 300. The scale of pay of Second Master	 Masters	 Physical Training Masters Assistant District Inspector of Schools. Agriculture Masters	 Clerical and Commercial Masters and Science Masters being item (2) is Rs. 110 8 190 10 250 with a start of Rs. 126/ to M.A./M.Sc./M.III/B T. and Rs. 150/ to M.A./ M.Sc./M.Ed.(11)/B.T. and Rs. 150/ to M.A./M.Sc./M.Ed. (11)/B.T '. The second letter on which the respondents relied is. dated 7 November 1958. This letter is from the Deputy Director (Schools) to the Inspector of Schools. The subject is: Promotion of the so called unadjusted B.A. B.T./B.Ed.	 teachers to the posts of Master on Rs. 110/250 grade It is stated there that it has been decided that 25 Per cent posts of B.T./B.Ed. Masters in Rs. 110 250 grade should be filled by promotion from amongst the teachers working in the lower grade who have passed the B.A. B.T./B.Ed. Examinations. The selection is to be made on the basis of seniority cum merit. 532 Two of the relevant rules in Punjab Educational Service Class III A school Cadre Rules	 1955 which were in force with effect from 23 May	 1957 are numbered 7 and 10. Rule 7 speaks of the method of recruitment. The methods of recruitment are: (a) by direct appointment	 or (b) by transfer of an official from other Services or posts of Government in the Education Department of any Government in India	 or (c) by promotion from lower grades in the service. The manner of appointment shall be strictly by selection etcetera as mentioned there. Rule 10 states that "members of the service will be entitled to such scales of pay as may be authorised by the Government from time to time. The scales of pay in force are specified in Appendix 'A ' against each post". Appendix 'A ' is an appendix to the Rules. This Appendix mentions Masters as item No. 2. The scale of pay given in item No. 2 for the posts of Masters	 who are ordinary graduates with 'degree of Bachelor of Teaching or equivalent thereof is Rs. 110 8 190/10 250 whereas for M.As. and M.Scs. with the degree of Bachelor of Teaching or Masters of Teaching or their equivalent	 the start of the grade is higher as already mentioned. The letter dated 23 July	 1957 revised the scales of pay with effect from 1 May	 1957. These appeals concern teachers who are in category 'A '. The revised scale given to teachers in category 'A ' is Rs. 110 8 190/10 250. Any teacher who would satisfy the test mentioned in category 'A ' would be entitled to the scale of pay. Counsel on behalf of the State contended that there was not to be a mass increase of all teachers to that grade of pay but the letter dated 23 July	 1957 meant that a teacher who passed Bachelor of Teaching examination would be entitled to be appointed a Master and on being so appointed would be entitled to the scale of pay. With regard to the letter dated 7 November 1958 which stated that 25 per cent posts of B.T./B.Ed. Masters in Rs. 110 250 grade should be filled by promotion from amongst the teachers who were in lower grade	 counsel for the State contended that teachers who were qualified by possessing B.T. B.Ed. degrees would be entitled to get 25 per cent of the posts provided the respective posts according to their subject combination were vacant. Rule 10 entitles the teachers to such scales of pay as may be authorised by the Government from time to time. The letter dated 23 July	 1957 shows that teachers who possess the degree of Bachelor of Teaching or its equivalent on 1 May 1957 will be entitled to scales of pay mentioned therein. Those who will pass the examination of Bachelor of Teaching thereafter will be entitled to their revised scale of pay with effect from the date they pass the examination. The contention of the State that there was not to be a mass increase of scale of pay is unsound. Teachers who possessed degrees became entitled to scales of pay according to category 'A '. The High Court rightly referred to the letter of the Secretary of the Department dated 24 September	 1957 that teachers holding B.A.	 533 B.T./B.A.	 B.Ed. qualifications would hence forth be placed in category 'A '. The High Court rightly came to the conclusion that the scale of pay of Rs. 110 250 would be effective either from the date when the teachers would pass the examination of Bachelor of Teaching or its equivalent or 1 May	 1957	 whichever is later. The High Court	 however	 gave the teachers the scales of salary confined to a period of 3 years and 2 months counting back from the date of the presentation of the writ petition. In other words	 the High Court did not allow the teachers any claim prior to 1967. The letter dated 7 November	 1958 was necessary because in spite of the revised grade of Rs. 110 250 having been granted to Bachelor in Teaching or equivalent thereof	 they were not being appointed by process of promotion to the posts of Masters. The letter stated that "selection is to be made on the basis of seniority cum merit	 due regard being paid to good reputation regarding character	 popularity among students and parents and capacity to maintain discipline". The respondents claimed that according to the letter those of them who were Bachelor in Teaching or Bachelor in Education were entitled to be appointed to the posts of Masters. The teachers could not claim vacancies by promotion exceeding 25 per cent. Their claim for appointment by promotion had to take into consideration not merely their seniority but also their merit. This percentage of 25 as fixed by the letter is covered by Rule 7(ii) and the principle of selection for appointment is covered by Rule 7 clause (iii). Therefore	 the earlier letter dated July 23	 1957 fixed the scale of pay on the basis of academic qualifications. The subsequent letter dated 7 November	 1958 recognised the right of promotion to the posts of Masters to the extent of 25 per cent. The High Court said that the contention of the State that the teachers could not be considered for promotion unless they satisfied the condition of subject combination namely	 that if they were ordinary graduates with training qualifications	 they must have studied two out of the four subjects	 namely	 History Geography	 Economics and political Science is not supported by the letter dated 7 November	 1958. The High Court rightly said that the letter does not speak of any limitation of subject combination for promotion. Some of the teachers were from time to time promoted to the posts of Masters but never continuously beyond a period of six: months. After completion of six months	 there was a break to avoid continuity in service for the posts of Masters beyond six months. The State contended that the teachers could not be considered for promotion unless the Board were satisfied that the teachers if ordinary graduate with training qualifications`must have also studied two out of four subjects of History	 Geography	 Economics and Political Science. The teachers on the other hand contended that once the State Government had taken a decision as embodied in the letter dated 7 November	 1958 the policy of not allowing the teachers to continue beyond six months on 534 temporary basis was nullifying the letter and spirit of the decision of the letter dated 7 November	 1958. The teachers also contended that the promotion of teachers to Masters is completely independent of any consideration like the combination of subjects. The High Court rightly held that letter dated 7 November	 1958 was subject only to two limitations. One was that teachers could not claim more than one fourth of the vacancies of the posts of Masters and the other was that the claim by way of promotion would be considered by the appointing authority on the basis of seniority cum merit. The High Court rightly held that the letter dated 7 November	 1958 was not subject to the condition of subjects combination being fulfilled. There are three categories of teachers Science Masters	 Mathematics Masters and Social Studies Masters. No condition of combination of subjects can be read into the letter of 7 November	 1958. The second conclusion of the High Court is correct that the teachers were to be treated as serving in that scale of pay continuously and not on six months basis. The third conclusion which the High Court arrived is correct that the teachers were to be considered for appointment to the posts of Masters to the extent of 25 per cent quota as recognised for their category of teachers on the basis of seniority cum merit without being subjected to the condition of subject combination. The judgment of the High Court is affirmed. The appeals are dismissed. The respondents will be entitled to one set of costs. P.B.R. Appeals dismissed .

Promotion from lower grades in the service to a higher grade is one on the methods of recruitment under r. 7 of the Punjab Educational Service Class III School Cadre Rules	 1955 Rule 10 of the rules states that members of the service would be entitled to such scales as may be authorised by the government from time to time. The State Government issued letter dated 23rd July	 1957 on the subject of revision of scales of low paid government servants in which it was stated that the then existing scales of pay of certain categories of posts should	 with effect from 1 May	 1957	 be revised as shown therein. In that letter teachers according to their qualifications were placed in categories A and B	 and the respective scales o pay to which they were entitled were mentioned. The letter dated 7 November	 1958 issued by the Deputy Director (Schools) to the Inspector of Schools stated that 25% of the posts of B.T./B.Ed. masters should be filled by promotion from amongst teachers working in the lower grade who have passed the above examinations and that the selection was to be made on the basis of seniority cum merit. The respondents who were teachers were promoted from time to time as masters but were never allowed continuously beyond six months to avoid continuity in service and were not given the revised scales. They claimed the revised scales of pay as well as the posts of masters on the ground that they had taken the degrees in Bachelor of Teaching or its equivalent	 that the letter dated 23 July	 1957 which became effective from 1 May	 1957 entitled them to the revised grade if they took the degree of Bachelor of Teaching or its equivalent and that the letter of 7 November 1958 entitled them to the posts of masters to the extent of 25% on the vacancies. The High Court allowed their prayers. In appeal to this Court it was con tended by the State that (1) there was not to be a mass increase of pay of all teachers to that grade of pay but what the letter dated 23 July	 1957 meant was that a teacher who passed B.T. examination would be entitled to be appointed a master and on being so appointed would be entitled to the scale of pay. and (ii) that according to the letter of 7 November 1958 teachers who were qualified by possessing B.T./B.Ed. degrees would be entitled to get 25% of the posts provided the respective posts	 according to their subject combination	 were vacant. Dismissing the appeals	 ^ HELD: The letter dated 23 July	 1957 fixed the scale of pay on the basis of academic qualifications while the letter dated 7 November 1958 recognised the right of promotion to the posts of masters to the extent of 25%. [533E] 1.(a) Rule 10 entitles the teachers to such scales of pay as may be authorised by the Government from time to time. Letter dated 23 July	. 1957 showed that teachers who possessed the degree of B.T. Or its equivalent on 1 May	 1957 would be entitled to scales of pay mentioned therein. Those who will pass the examination of ' B.T. thereafter would be entitled to their revised scale of pay with effect from the date they passed the examination. [532G] (b) The contention of the State that there was not to be a mass increase of scales of pay is unsound. Teachers who possessed degrees became entitled to the scales of pay according to category A. [532H] 530 (c) The High Court rightly came to the conclusion that the scale of pay would be effective either from the date when the teachers would pass the examination of B.T. Or its equivalent or I May	 1957	 whichever is later. [533B] (2) The High Court rightly held that the letter dated 7 November	 1958 was subject only to two limitations namely (1) that teachers could not claim more than one fourth of the vacancies of posts of masters	 and (ii) the claim by way of promotion would be considered by the appointing authority on the basis of seniority cum merit. No condition of combination of subjects could be read into the letter of 7 November 1958. The High Court was also correct in holding that the teachers were to be treated as serving in that scale of pay continuously and not on six months basis	 and that the teachers were to be considered for appointment to the posts of masters to the extent of 25% quota as recognised for their category of teachers on the basis of seniority cum merit without being subjected to the condition of subject combination. [534A D]