Summarize the following court judgment. Civil appeal No.387(N) of 1981 . From the Judgment and order dated 11.2.1980 of the High Court of Calcutta in Appeal from Original order No. 588 & 594179. Gobind Das and R.P. Singh for the Appellant. O.P. Sharma	 R.C. Gubrel and R.K. Sharma for the Respondents. The Judgment of the Court was delivered by SEN	 J. This appeal by special leave raises a question as to whether the appellant upon his transfer from the North Eastern Railway	 at his own request	 to the South Eastern Railway was entitled under r. 312 of the Railway Establishment Manual	 to be placed in the seniority list below the existing confirmed and officiating staff in the relevant grade and not below the temporary staff. Put very shortly	 the essential facts are these. The appellant was holding the substantive post of a Clerk in the Commercial Department of the North Eastern Railway w.e.f. May 22	 1956 and had applied for his transfer to the South Eastern Railway in the same post. On October 15	 1958	 he was transferred from the North Eastern Railway	 at his own request	 to the South Eastern Railway and was posted at the Sealdah Division on his existing pay and scale against an existing vacancy. In 1967	 the seniority list of the Clerks in the Sealdah Division was prepared by the South Eastern Railway and in that list the appellant was placed below the temporary staff. Immediately upon his being placed below the temporary staff	 the appellant made two representations	 one dated March 4	 1967 and the other dated April 11	 1967	 in the matter complaining that he could not be placed below the temporary staff	 but without any avail. Finding that there was no redressal of the wrong done to him	 the appellant sent a reminder to the Chief Personnel Officer by name dated December 21	 1973. The Chief Personnel Officer by his communication dated October 19	 1974	 informed the appellant that his representation was rejected On April 30	 1975	 the appellant moved the Calcutta High Court under article 226 of the Constitution for the issue of an appropriate writ	 direction or order in the matter 21 of his inter se seniority	 and the High Court issued a rule nisi. A During the pendency of that rule	 respondents Nos. 7 to 45 arrayed in that petition whom the appellant considered to be junior to him were promoted to a higher post. On August 10	 1976	 the appellant filed another petition under article 226 of the Constitution challenging their promotion. On the same day	 the High Court issued a rule nisi and also directed that the South Eastern Railway would be at liberty to confirm respondents nos. 7 to 45 in their post of promotion but such confirmation would be subject to the result of the rule. In view of the interim order passed by the High Court	 the Chief Personnel Officer by his letter dated October 10	 1976 clarified. "The above promotion orders arc issued on provisional basis subject to result of the rule obtained by Sri Arun Kumar Chatterjee	 Clerk CCS (Refunds) Office	 in the Hon 'ble High Court at Calcutta. " A learned Single Judge by his judgment and order dated February 9	 1979 following the decision of Anil Kumar Sen	 J. in Lal Mohan Paul v The General Manager. Eastern Railway	 Calcutta & Ors.(l) held that in pursuance of r. 312 the relative seniority of the appellant was governed by the Railway Board 's Circular No. 1565A dated January 31	 1950 and not by its subsequent circular dated December 31	 1966	. The learned Single Judge accordingly set aside the impugned order of the Chief Personnel Officer	 South Eastern Railway dated October 7	 1974 and ordered that the Railway Administration should re fix his seniority below all permanent and officiating Clerks on the date of his transfer in the Sealdah Division of the South Eastern Railway but above the temporary Clerks in that Division. He further directed that the appellant would be entitled to promotion w.e.f. such date as he was eligible for such promotion according to the seniority so fixed. The General Manager	 South Eastern Railway preferred an appeal under cl. 15 of the Letters Patent against the judgment of the learned Single Judge. A Division Bench of the High Court by its judgment dated February 11	 1980 while upholding the view expressed by the learned Single Judge as to the construction and effect of r. 312 of the Manual	 held that the Circular No. 1565A (1) Civil Rule No. 620 (W)/70 dated April 23	 1974. 22 dated January 31	 1950 governed by the inter se seniority of the appellant. It however observed that due to inordinate delay on his part in moving the Court	 there was no justification for interfering with the promotions already made of respondents nos. 7 to 45 and made the following direction: "In the circumstances	 we do not think that we shall be justified in interfering with the promotions granted to the respondents. We	 however	 feel that the appellants should have placed the respondent No. I in the seniority list above the temporary staff. The Board 's circular may be given effect to in the case of the transfer which had taken place after the date of the said Circular	 but before that date we find no justification why in the face of Rule 312 the respondent No. 1 should not have been given the proper security by placing him above the temporary staff. In our opinion. The respondent No. 1 should be placed immediately below the Remaining respondents in FMA 588 of 1979	 the seniority list. 'I he judgment of the learned Judge is modified to the extent indicated above. " It accordingly modified the judgment and order of the learned Judge to the extent indicated above. We have set out the facts at some length. It would appear from these facts that there was no delay	 much less inordinate delay	 on the part of the appellant in filing the petition under article 226 of the Constitution for the protection of his right as to inter se seniority. Earlier	 he had made three representations to the departmental authorities in the matter without any redress. If the attention of the learned Judges had been drawn to these facts	 they would not have made the aforesaid modification. It is	 however	 argued that the order of posting on transfer communicated by the Chief Personnel Officer dated October 14	 1958 specifically stated that the seniority of the appellant would be counted from the date of his posting below all permanent and temporary Clerks. In his supple mentary rejoinder	 the appellant has controverted this there is nothing on record to show that the said order of posting was ever communicated to him. Rule 312 of the Railway Establishment Manual reads as follows: 23 "Transfer on request Seniority of Railway Servants transferred on their own request from one Railway to another should be allowed below that of the existing confirmed/officiating railway servants in the relevant grade in the promotion group in the new establishment irrespective of the date of confirmation or length of officiating service of the transferred railway servant. " We may then set out the two circulars issued by the Railway Board explaining the purport and effect of r. 312. Circular No. 1565A dated January 31	 1950 was explanatory and	 insofar as material	 reads: "On transfer at the employee 's own request or to save his own interests his position should be at the bottom of the seniority list of all permanent	 employees of his grade	 if he is permanent	 and at the bottom of the whole list of employees (both permanent and temporary) in his grade	 if he is temporary. " The Railway Board 's subsequent circular dated December 31	 1966 sought to clarify that the term 'officiating ' in r. 312 includes temporary staff as well and that an employee transferred at his own request to a new establishment should be placed at the bottom of the seniority list in his relevant grade in that establishment. It Provides: "It has been brought to the notice of the Railway Board that the orders contained in their letter No. E55SR6/3 dated 19.5.55 have been interpreted by your administration so as to exclude temporary staff from the purview of the term officiating staff	 occurring therein. The Board desire to point out that the term officiating ' occurring in Board 's letter dated 19.5.1955 includes temporary staff as well. That is to say that an employee transferred at his own request to a new establishment should be placed at the bottom of the seniority list in the relevant grade in that Establishment . " There can be no doubt on the terms of r. 312 of the Manual read with Railway Board 's Circular No. 1565A dated January 31	 1950 that the appellant having been transferred	 at his own request	 from one railway to another	 had to be placed below all the existing 24 confirmed and officiating staff in the relevant grade	 irrespective of the date of his confirmation or the length of his service. The appellant on the date of his transfer i.e. On October 15	 1958 was not governed by the Railway Board 's Circular dated December 31	 1966. In Lal Mohan Paul 's case	 supra	 Anil Kumar Sen	 J. in a case where a railway employee was transferred on September 30	 1959	 at his own request	 from one railway to another held that he was governed by the Railway Board 's Circular No. 1565A dated January 31	 1950 and not by the subsequent circulars and therefore was entitled to be placed in the seniority list below the existing confirmed and officiating staff in the relevant grade and not below the temporary staff. We uphold the view expressed by Sen J. in Lal Mohan Paul 's case	 supra. That apart	 the Railway Board 's interpretation in the aforesaid Circular dated December 31	 1966	 of the term 'officiating ' in r. 312 of the Railway Establishment Manual	 as including both officiating as well as temporary staff	 was apparently wrong. According to its ordinary connotation	 the word 'officiating ' is generally used when a servant having held one post permanently or substantively	 is appointed to a post in a higher rank	 but not permanently or substantively while still retaining his lien on his substantive post i.e. Officiating in that post till his confirmation. Such officiating appointment may be made where there is a temporary vacancy in a higher post due to the death or retirement of the incumbent or otherwise In contrast	 the word 'temporary ' usually denotes a person appointed in the civil service for the first time and the appointment is not permanent but temporary i.e. for the time being	 with no right to the post. We find no justification for the attitude adopted by the Rail way Administration in depriving the appellant of his legitimate rights. Loss of seniority of a Government servant with consequent lose of promotional prospects	 higher pay and emoluments is a matter of serious consequence to him. When the appellant by his representations drew the attention of the departmental authorities to the injustice done to him	 it was their duty to have rectified the mistake and re fixed the seniority of the appellant. It was precisely to meet a situation of this kind that the Railway Board 's Circular dated October 16	 1964 was issued. To provides that if a person has been promoted but not on the date on which he should have been promoted due to some administrative error then the employee should be assigned correct seniority vis a vis his juniors 25 already promoted irrespective of the date of promotion. It further provides that the pay of such employee in higher grade on promotion will be fixed proforma at the stage which he would have reached if he had been promoted at the proper time. There was no reason for the Railway Administration to have deprived the appellant of the benefit of the aforesaid circular	 particularly in view of the decision of Anil Kumar Sen	 J. in Lal Mohan Paul 's case	 supra. The result therefore is that the appeal must succeed and is allowed with costs throughout. The order passed by the Division Bench of the Calcutta High Court making a modification in the judgment of the learned Single Judge is set aside and the judgment and order of the learned Single Judge allowing the writ petition filed by the appellant is restored. M.L.A. Appeal allowed .

Rule 312 of the Railway Establishment Manual provides that seniority of railway servants transferred on their own request from one railway to another should be allowed below that of the existing confirmed officiating railway servants in the relevant grade. To explain the purport and effect of r. 312	 the Railway Board ' issued a Circular No. 1565A dated January 31	 1950 which provided that on transfer at the employee 's own request his position should be at the bottom of the seniority list of all permanent employees of his grade	 if he is permanent and at the bottom of the whole list of permanent and temporary employees if he is temporary. The Railway Board 's subsequent Circular dt. 31st Dec. 1966 sought to clarify that the term 'officiating ' in Rule 312 includes temporary staff as well. The appellant	 who was holding a substantive post of a clerk in the Northern Eastern Railway was transferred on October 15	 1958 on his own request to The South eastern Railway and was posted at the Sealdah Division. He was however placed below the temporary staff	 namely	 respondents 7 to 45 in the seniority list of the clerks in the Sealdah Division prepared he the respondent Southern Eastern Railway in 1967. After rejection of his two representations in the year 1967 and a reminder to the Chief Personnel Officer dated December 21	 1973 against the wrong fixation of his inter se seniority	 he filed a writ petition in the High Court on 30th April 1975 challenging the said seniority list. The learned Single Judge held that in pursuance of Rule 312	 the relevant seniority of the appellant was governed by the Railway BOARD 'S Circular No. 1565A and not by its subsequent Circular dated December 31	 1966	 and ordered the Railway Administration to refix his seniority below all permanent 19 ent and officiating clerks on the date of his transfer in the Sealdah Division	 but above the temporary clerks in that Division with consequential benefits. On appeal by the respondent the Division Bench upheld the view of the learned single Judge but	 observed that due to inordinate delay on the part of the appellant in moving the court	 there was no justification for interfering with the promotions already made of respondents No. 7 to 45 and ordered that he should be placed immediately below the remaining respondents. Allowing the appeal	 ^ HELD: (1) It would appear from the facts that there was no delay	 much less inordinate delay	 on the part of the appellant in filing the petition under article 226 of the Constitution for the protection of his right as to inter se seniority. In fact	 he had made three representations in the matter but without any redress [22E F] (2) There can be DO doubt on the terms of r. 312 of the Manual road with Railway Board 's Circular No. 1565A dated January 31	 1950 that the appellant had to be placed below all the existing confirmed and officiating staff in the relevant grade	 irrespective of the date of his confirmation or the length of his service. He was not governed by the Railway Board 's Circular dated December 31	 1966 on the date of his transfer. [23H; 24A] (3) According to the ordinary connotation	 the word 'officiating ' is generally used when a servant having held one post permanently or substantively	 is appointed to a post in a higher rank	 but not permanently or substantively	 while still retaining his lien on his substantive post i.e. officiating in That post till his Confirmation. In contrast	 the word 'temporary ' usually denotes a person appointed in the civil service for the first time and the appointment is not permanent but temporary i.e. for the time being	 with no right to the post. Therefore	 the Railway Board 's interpretation in the aforesaid Circular dated December 31	 1966 of the 'officiating ' in r. 312 of the Railway Establishment Manual	 as including both officiating as well as temporary staff	 was apparently wrong. [24D E] (4) The Railway Board 's Circular dated October ]	1964 also provides that if a person has been promoted not on the date on which he should have been promoted to some administrative error then the employee should assigned correct seniority vis a vis his juniors already promoted irrespective of the date of promotion and the the pay of such employee in higher grade on promotion be fixed proforma at the stage which he would have reached if he bad been promoted at the proper time Was no reason for the Railway Administration to have deprived the appellant of the benefit of the aforesaid circular	 particularly in view of an earlier decision of the High Court in Lal Mohan Paul 's case. [24H; 25A B] Lal Mohan Paul vs The General Manager	 Eastern Railway	 Calcutta & Ors Civil Rule No. 620 (W)/70 dated April 23 1974 approved. 20