Summarize the following court judgment. ition (Civil) No. 11704 of 1985 etc. (Under Article 32 of the Constitution of India). R.P. Gupta for the Petitioners. V.C. Mahajan	 Ms. A. Subhashini	 B.K. Prasad	 C. Ramesh and Hemant Sharma for the Respondents. The Judgment of the Court was delivered by RANGANATHAN	 J. These two writ petitions were filed as 452 early as 1985 but they are still at the admission stage. However notices have been issued to the respondents and we have heard counsel on both sides. As both the writ petitions relate to the same subject matter	 it will be convenient to dispose of them by a common order and we proceed to do so. The controversy in these writ petitions is as to the proper principle for determination of seniority in the Transportation (Traffic) Department of the Indian Railways. Though the petitioners in Writ Petition No. 11704 of 1985 belong to the Central Railways	 the principle to be deter mined will have application over all nine Railways in the country and is being agitated in Writ Petition No. 12802 of 1985 by the All India Train Controller 's Association. The officials with whom we are concerned in these writ petitions occupy Group C (Class III) posts in the above department. The question of their inter se seniority has become material for their promotion to Group B (Class II) posts which really form the lowest rung of the management cadre. 75% of the vacancies arising in Group B (Class II) posts in each de partment are filled in by promotion on selection from among Group C (Class III) employees of the department on the basis of seniority cum merit. The difficulty in determination of the inter se seniority arises because there are different streams of eligible Group C (Class III) employees	 occupying posts with different scales of pay	 who have to be consid ered for selection to Group B posts. As only those employees from the different streams can be considered as fail within the zone of consideration as per seniority and as the zone of consideration is determined with reference to the number of vacancies in Group B for which the selection is held at any point of time	 the position of an employee in the com bined seniority list of all the streams assumes great impor tance. We are concerned with the selections for appointment to three Group B posts in the Operating Branch of the Traffic and Transportation Department. These are: Assistant Operat ing Superintendent	 Assistant Traffic Superintendent and Station Superintendent. The four Group C streams which have the avenue of promotion to the above group B posts are: (1) The Control Stream	 which consists of the Chief Controller	 the Deputy Chief Controller and the Section Controller; (2) The Traffic Stream	 which comprises of the Station Master	 the Yard Master	 Traffic Inspector and Signaller; (3) The Ministerial Stream	 consisting of office staff and (4) The Running Stream	 consisting of Guards. We are here concerned only with the question of inter se seniority between the employees in the Control 453 Stream and those in the Traffic Stream. As mentioned earlier	 there are several grades and scales of pay prevailing in each of these streams. It will be helpful to tabulate them here for convenient reference: Control Stream Post Scale of Pay Pre 1931 I Pay II Pay III Pay Commission Commission Commission Chief Controller360 500 450 575 450 575 8501040/1200 Deputy Chief 400 500 300 400 370 475 700 900 Controller Section Con troller Grade I 300 350 260 350 335 425 ) ) 470 750 Grade II 200 300 200 300 270 380 ) Traffic Stream Post Scale of Pay Pre 1931 I Pay II Pay III Pay Commission Commission Commission Station Supdt./120 165/) Jn. S.M./CYM/80 160/) 300 400 450 575 700 900 TI (Higher) 200 300 ) Stn. Master (Higher) Dy. Supdt. 80 160 300 400 370 475 550 750 /YM/TI (Lower) SM (Lower) 60 65 80 170 130 225 330 560 Grade and others 80 120 100 185 205 330 425 640 150 225 200 300 250 380 455 700 260 350 335 425 550 750 The zone of consideration of the employees for promotion is fixed in the order of the combined seniority of the employees from the 454 different streams. In each of the streams	 seniority depends on the grade. Normally	 employees working in a higher grade on a regular basis are senior to those working in the lower grade. To illustrate	 the highest Group C grade was Rs.450 575 followed by the grades Rs.370475	 Rs.335 485	 Rs.335 425 and so on. (We are referring here to the old pay scales which have since been revised). The employees working in the grade Rs.450 575 were therefore placed on the top followed by those in the grades of Rs.370 475	 Rs.335 485 and Rs.335 425. This principle for determination of inter se seniority worked very well till 31.12.72 as the higher scales of pay in both the streams was the same. According to the department	 it became difficult to follow this principle when	 consequent on the acceptation and implementation of the recommendations of the Third Pay Commission with effect from 1.1. 1973	 higher or lower scales of pay came to be fixed in respect of certain posts which were having the same scale of pay upto 31.12.1972. For example	 the scale of pay of Rs.450 575 held by Station Masters and Traffic Inspectors in the Traffic Stream upto 31.12.72 was upgraded to the scale Rs.700 900 with effect from 1.1.73. On the other hand	 in the case of Chief Controllers of the Control Stream	 the same scale of Rs.450 575 was replaced by a scale of Rs.840 1040/1200. Similarly	 in the case of Station Masters and Inspectors in the grade of Rs.370 475 in the Traffic Stream	 the replacement was by the scale of RS.550 750 while in the case of Deputy Chief Controllers on the scale Rs.370 475	 the replacement scale was Rs.700 900. Thus the Control Stream gained an upper hand in the matter of seniority and	 consequently	 of promotions. In an attempt to restore some balance and parity between the employees of the different streams	 the Railway Board issued certain instructions on 26th October	 1976. As per these instructions	 the inter se seniority of the staff working in the grade of Rs.700 900 and the grades	above it in the different streams was to be based on the total length of service rendered by an employee in all the grades. This did not satisfy all sections of the staff and difficulties were also experienced in applying the instructions. For example	 a Deputy Chief Controller	 who had been in the grade of Rs.370 475 upto 31.12.72 and was placed on Rs.700 900 from 1.1.73	 gained an advantage over his collegues in the other stream viz. the Station Masters and Traffic In spectors. The matter was therefore reconsidered and modified instructions were issued on 11.7.77. According to these instructions	 for purposes of drawing out the combined seniority of Group C employees from different streams	 the services rendered in the top most scale in one stream would be considered equivalent to the service rendered in the 455 top most scale in the other streams	 even though the top most scale in the two streams might be different. This rule also produced anomalies. For example	 if in one stream	 the top most scale was Rs.700 900	 in another Rs.550 750 and in yet another Rs.840 1040	 the length of service rendered in all these grades by the employees was stated to be the basis to determine the combined seniority. Thus an employee having ten years of service in the top most scale of Rs.550 750 in one stream would rank senior to another having slightly less than ten years of service in the top most scale of Rs.700 900 in another stream. The Department	 therefore	 issued revised instructions in August '78/ February '79. As per these instructions	 where the top most scale prior to 1.1.1973 has been replaced by two different scales after 1.1.73	 one higher and the other lower	 service rendered in the lower scale will be notionally stepped up as if the service had been rendered in the higher scale. For example	 the grade of Rs.450 575 was replaced by Rs.8401040 for the Controllers and Rs.700 900 for Station Masters and Traffic Inspectors. While drawing up the combined seniority	 the service ren dered in the grade of Rs.700 900 by the Station Masters and Traffic Inspectors was to be treated as service rendered in the grade Rs.840 1040. Similarly	 the pre revised grade of Rs.370 475 had given rise to two scales	 namely	 Rs.700 900 and Rs.550 750	 and	 in that case	 the service rendered in the grade Rs.550 750 was notionally treated as rendered in grade Rs.700 900 for drawing up the combined seniority. This principle did not work well either. It seems the circulars of 11.7.77 and August '78 were quashed by the Bombay High Court in W.P. No. 55 of 1980 by its order dated 14.12.83. In the meantime	 detailed consideration of the issues was undertaken in consultation with the federations of organised labour and it was finally decided that the combined seniori ty for purposes of Group B selection should be determined on the basis of the total length of service rendered by employ ees in any or in all the grades commencing from Rs.700 900 and above and these instructions were issued on 5.3.83. In January 1984. further instructions were issued which	 while maintaining the principles laid down on 5.3.83	 provided protection to senior employees	 who got superseded in a stream for promotion to the higher nongazetted grade in that stream. For example	 if an employee in grade of Rs.700 900 supersedes one of his seniors in promotion to the grade of Rs.840 1040 within the stream	 he would control the seniori ty of the employee whom he had superseded. Such a superseded employee would be put to hardship when the combined seniori ty is drawn up along with employees from the other streams for purposes of selection to Group B. In order to avoid the situation of a senior employee being subjected to such disability	 instructions were issued on 6.1. 1984 that 456 an employee who supersedes his senior will be credited with the service of the senior whom he had superseded. Aggrieved by these experiments which	 according to them	 only resulted in chaos and confusion	 45 employees of the Control Stream filed WP 11704/85 when	 on the issue of a list published by the administration on the basis of these instructions on 15.6.85	 they found themselves excluded from the panel of staff to be taken into consideration for promotion to Group B. They prayed that the circular of 6. 1.84 and the follow up action culminating in the Selection List be also set aside. The petitioners are also aggrieved by a different set of steps initiated by the Railway Board. A further discrimina tion against the control stream	 it is alleged	 has resulted from two circulars issued by the Board	 one on 29.7.83 and the other on 26.12.83. These circulars envisaged	 what the petitioners call	 "mass upgradations" and what the circulars call a "restructuring of the cadres". The earlier of the two circulars applied to the traffic stream. In so far as is relevant for our present purposes	 the "upgradation" was on the following lines: Name of Existing Revised Revised Percentage Rema post scale Designation Scale of posts marks Yard Masters 455/700 Dy. Chief 700 900 20% /Asst. Yard Yard Masters Masters Yard Masters 550 750 Chief Yard 840 1040 10% of Masters post in scale of 700 900 Station 455 750 Station 700 900 10% Master Supdt. Station 350 750 Station 840 1040 10% of Supdt./ Supdt. posts in Station scale of Master Rs.700 900 2 Separate 700 900 43.5% This we Cadre of (10% of told	 has Station these 'll not been 457 Masters/ carry scale given Asstt. of Rs.840 effect Station 1040 to. Superin tendants The circular stated that this restructuring will be with reference to the sanctioned strength as on 1.8.83. The staff	 who will be placed in the revised grade in terms of these orders will be eligible to draw pay on the higher grades from 1.8.83 with benefit of proforma promotion from 1.8.82. It was made clear that the benefit of proforma fixation will be admissible only to the staff who are placed in the vacancies arising directly as a result of these restructuring orders. The date of proforma fixation has later been shifted	 from 1.8.82 to 1.8.83 by a circular dated 13.7. The second circular	 dated 20.12.1983 pertained to the control stream. The restructuring was on the basis of the cadre strength as on 1.1.84 and the revision of scales was also to be effective from 1.1.84. The pattern of restruc ture	 in so far as it is relevant for our present purposes	 is set out thus in the schedule: Existing Grade & Posts Existing Revised percentage percentage (i) 470 750 Not laid 15 (Section Controllers) down (ii) 700 900 " 58 ] (Dy. Chief Controllers) ] ] ] ] (iii) 340 1040 " 23 ] 85 (Chief Controller ] Gr. II) ] ] ] (iv) 840 1200 " 4 ] (Chief Controller Gr. II) 458 It was made clear that the cadre has been restructured keeping in view additional duties	 responsibilities and heavier workload in some of the charges and that the revised grades were to be given to employees eligible therefore on such considerations in their existing positions. Reference must be made to two more circumstances before we deal with the contentions urged before us. The first is that the circular of 6.1.84 referred to above which	 accord ing to the counsel for the petitioner introduced the princi ple of "chance seniority" was quashed by the Central Admin istrative Tribunal by its order dated 5.2.1988. A copy of this order has not been made available to us. Secondly	 consequent on the said decision of the Tribunal	 the Railway Board issued certain instructions on 22.12.88 which reads thus: "Consequent upon the judgment given by the Central Adminis trative Tribunal in connection with the above	 matter has been reviewed in consultation with the representatives of the recognised organised federations and it has been decided in partial modification of the orders contained in Railway Board 's letters . . dated 28.5.83 and 6.11.84 that the integrated seniority of group C employees for promotion to group B posts should be determined on the basis of con solidated length of non fortuitous service rendered in the grade of Rs.700 900/2000 3200 and above ignoring promotions to the grade of Rs.840 1040/23753500 . " It may be mentioned that the petitioners were fully satisfied with the circular of 5.3.83 which according to them	 gave effect to rule 321 of the Indian Railway Estab lishment Manual. According to them	 this equilibrium was unjustifiably disturbed by the circulars issued subsequent ly. The principal grievance urged before us by learned counsel for the petitioner was that	 as a result of the restructuring orders read with the order reckoning all persons working in salary grades of Rs.700 900 and above as one group for determining seniority	 the control stream staff has been adversely affected to a considerable extent. He points out that persons in the Traffic Stream who entered the supervisory grade of Rs.470 750 were placed in the grade of Rs.700 900 much later than the dates when those in the control stream entered the corresponding scale of Rs.455 700 will gain seniority over the latter. He asks us to compare for this purpose the positions of officers in the control stream with seniority positions Nos. 90 to 190 with those occupying seniority positions Nos. 61 to 208 in the traffic 459 stream. He contends that the staff employed in the control stream lose both monetarily as well as in terms of seniority by being placed in the scale of Rs.700 900 only w.e.f. 1.1.84 as compared to those of the traffic stream who re ceive such promotions and pay scales w.e.f. 1.8.83. Leaving aside the question of monetary benefits for the time being	 the submissions are: (i) that seniority should be determined on the total length of service as envisaged in rules 202 and 321 of the Indian Railways ' Establishment Manual	 which read thus: "202 For selection to class II posts or Civil Engg. Trans portation (power) and Mechanical Branch	 Transportation (traffic) and Commercial	 Signal and Telecommunication	 Electric and Stores Department. (i) Only permanent staff will be eligible (ii) all staff in grade Rs.335 425 and above provided they have rendered a minimum of 3 years non fortuitous service after reaching the stage of Rs.335 either in those grades or in a lower grade. 321 Relative Seniority of employees in an intermediate grade belonging to different seniority units appearing for a selection/non selection post in higher grade. 'When a post (selection as well as non selection) is filled by considering staff of different seniority units	 the total length of continuous service in the same or equivalent grade held by the employee shall be determining factor for assign ing inter seniority irrespective of the date of confirmation of an employee with lesser length of continuous service as compared to another unconfirmed employees with longer length of continuous service. This is subject to the proviso that only non fortuitous service should be taken in account for this purpose." (ii) that if all the grades in the eligible groups are to be clubbed together	 the seniority should be reckoned as and from the date of entry into the lowest of the grades in Group 'C ' (class III) viz. Rs.470 750/455 700; 460 (iii) that even if the mass upgradations are to be upheld on principle	 they must be directed to be made effective from the same date (whether it be 1.8.83 or 1.1.84) in respect of both the streams and should not be on different dates. (iv) that the whole object and purpose of these circulars is to obliterate the effect of the recommendations of the Third (and even the Fourth) Pay Commissions	 after assessing the duties and responsibilities of the staff in both streams	 that the staff on the control stream deserve higher scales although these recommendations have been duly accepted and implemented by the Government. According to the learned counsel	 the traffic stream has a huge strength and a powerful union and	 pressurised by their numbers	 the Railway Board is attempting to take away	 indirectly	 the benefits given to the control stream by the Pay Commission 's recommendations and that too at a point of time when a fresh Pay Commission was in the process of being constituted. Counsel also alleged that the All India Con trollers ' Association (which has filed writ petition No. 12802 on similar lines) has not been consulted at any stage and these circulars are being issued at the behest of the unions of the traffic staff and despite the representations and protests of the comparatively weaker union of the con trol staff. On the other hand	 Sri V.C. Mahajan	 learned counsel for the Union of India	 submitted that the petitioners have not placed any data before the Court to make out a case of discrimination. He submits that after the Writ Petitions were filed in 1985 the Department has issued a circular dated 27.12.88 and a combined seniority list in March 1989. The petitioners have not taken any steps to amend the Writ Petition to challenge this circular or this list or to show in what respect and to what extent the rights of the peti tioners have been prejudiced by the restructuring orders. Turning to the "restructuring" circulars	 counsel points out that in this case the Government has been hard put to evolve an equitable formula for fair promotional chances to the two sets of people in question. Various attempts had been made earlier but they were not successful. Finally the present formula has been evolved after consulting all the concerned unions. It is not correct	 he says	 to say that the deci sions have been taken without consulting the representatives of the Controlling Stream. It is submitted that	 having regard to the few posts at the top of the scale	 the Traffic Stream had been complaining of inadequate promotional oppor tunities. The 461 Government has tried to solve the problem as best as it could and counsel refers to the following basic features behind the restructuring: (i) The date of entry into grades Rs.700 900 above will be taken as the starting point to reckon seniority. This is the effect of the circular of 22.22.88 the validity of which has not been challenged in the petition. (ii) Considering the large strength of employees in the Traffic Stream	 viz. 4430	 about 10% of the posts have been upgraded which will mean that about 443 persons will be in the above grades. So far as the Control Stream is concerned	 the percentage of posts in the above zone has been increased to about 35% of the 270 posts available with the result that about 211 people will be in the above grades. As a result of the mass upgradation	 a large percentage of people in the Control Stream immediately derive monetary benefits. They have accepted these benefits and have been occupying the upgraded position since 1984 onwards. (iii) The date of the upgradation in both the streams cannot be the same for the result of it would be that all the upgraded personnel will have seniority reckonable from the same date. This being the position	 their seniority will have to be based on the length of their services in the immediately lower scales or reckoned as from the date of their entry into the lowest of the Group C grades and this would	 have revived the same problem which the Government was trying to solve. That is why the Government fixed dif ferent dates for the two streams separated only by a short span of five months and this was neither unreasonable nor discriminatory. Counsel submits that the Government was trying to forge out a solution that will be fair 'to both the streams and that the attempt of the petitioners to accept the upgrada tions of the scales in their stream but objecting to the other part regarding date of fixation should not be allowed to succeed. He submits that if the petitioners were prepared to accept the same percentage of upgradation as the Traffic Stream persOnnel and give up the extra benefits received	 the Government could reconsider the whole question afresh. After hearing both counsel	 we have reached the conclu sion that the materials before us are totally inadequate to come to any conclusion on the true impact of the circulars	 In fact	 to start with	 we were 462 of the view that	 in a matter like this	 the proper remedy of the petitioners is to approach the Central Administrative Tribunal which has been set up for that very purpose. But since counsel for the petitioners pleaded that the writ petitions have been pending here since 1985 and it would not be fair to the petitioners to sent them now to pursue that remedy	 we heard the petitioners and the opposite parties at some length but	 as will emerge from the above discussion	 the exact position and impact of the circulars is very nebulous. As pointed out by Sri Mahajan	 the Department is trying to cope with the problem of giving fair promotional opportunities to two different streams which become eligible for promotion to Group B posts. Since the counsel for the petitioner has stated that he has no quarrel with the circu lars of 5.3.83 and 22.12.88 and since the circular of 6.1.84 already stands quashed by the Central Administrative Tribu nal	 the only grievance of the petitioners that survives is against the upgradation circulars. Apart from the merits	 there are three difficulties in considering the plea of the petitioners that the part of the two circulars fixing dif ferent dates of upgradation should alone be set aside: (a) The plea of the petitioners	 if accepted	 will affect a large number of persons in the traffic stream and even result in a number of reversions in all the Railways. Though the petitioners have made some persons in the traffic stream working in the Central Railway parties	 neither the persons likely to be affected in other parts of the country nor their union have been made parties. (b) As discussed above	 the circular of 20.12.83. confers substantial benefits on members of the control stream. A large number of them have been able to secure an upgradation to the scale of Rs.700 900 which	 otherwise	 may not have come to them for sometime	 and they may or may not all be affected adversely by the date of upgradation. It is also pointed out that upgradation in the traffic stream are subject to selection on the basis of a written test and viva voce	 while the upgradations in the control stream are automatic based on seniority cum suitability. It is	 there fore	 not clear even whether the All India Controller 's Union is speaking in one voice for all its members either for or against the circular of 20.12.83. (c) As pointed out by Sri Mahajan	 the Department has issued a seniority list in pursuance of its circular. No attempt has been made to substantiate the grievances of the peti tioners by pointed factual references to that list. 463 Coming to the merits again	 the inequity is not appar ant. Having to deal with two different streams	 differently placed	 the Government has to find out an equitable solution and it has been groping towards it. One method would perhaps have been to have fixed quotas for promotion from each of the streams but that is not necessarily the only method. An alternative method is being attempted here and the princi ple that grades of Rs.700 900 and above should be considered together being conceded the Department is trying to give some weightage by granting upgradation to each stream based on its total strength in order to balance the promotional chances in both the streams. It is possible that some indi vidual cases may be affected but no answer to the question whether any class discrimination has resuited can be given unless fuller details are available and the practical impact of the latest position is placed before us. If a good number of persons in the control stream are benefitted monetarily despite the disadvantage to a few	 in the matter of promo tion	 it may be a question how far the Association of the Controllers will be able to make out a case of class dis crimination. Even if we assume that the entire control stream would be adversely affected	 the question will still remain whether the basis of differentiation is justified in the circumstances or amounts to arbitrary discrimination. We express no opinion on these questions at this stage. We would only say that	 in the absence of adequate material before us	 we are unable to reach any conclusion on the plea of discrimination. We	 therefore	 dismiss the writ petition but we will leave it to the petitioners	 if so advised	 to move the Central Administrative Tribunal	 with fuller facts and in the light of the latest developments	 for appropriate relief after impleading all affected parties or their repre sentatives so that the entire picture may emerge and a just conclusion arrived at. Y. Lal Petition dis missed.

These writ petitions have been fried by Group 'C ' (class III) employees of the Railways working in its Transportation (Traffic) Department. The said Department has different streams e.g. 'Control Stream ' and 'Traffic Stream ' and the employees working therein have different scales of pay. For purposes of their promotion to Group B posts	 it was neces sary to fix their inter se seniority	 as only those employ ees from the different streams could be considered for promotion as would fall within the zone of consideration as per seniority list. As the zone of consideration is deter mined with reference to the number of vacancies in Group B for which selection is held	 at any point of time	 the position of the employee in the combined seniority list of all the streams is important. The zone of consideration of the employees for promotion Is fixed in the order of the combined seniority of the employees from the different streams. The Department prior to the implementation of the recommendations of the Third Pay Commission fixed the inter se seniority of the employees of Group C employees on the basis of the grade i.e. employees working In a higher grade on a regular basis were treated senior to those working in the lower grade and the said principle worked well until the enforcement of the recommendations of the Third Pay Commis sion w.e.f. 1.1.1973	 when higher or lower scales of pay came to be fixed in respect of certain posts which were having the same scale of pay upto 31.12.1972. This presented difficulty in fixing the inter se seniority of the employees and the Railway Board in order to resolve the difficulty issued circulars from time to time indicating how their seniority should be fixed but for some reason or the other	 the dissatisfaction amongst the employees in the matter of seniority continued. Being aggrieved by the experiments which according to the petitioners only resulted in chaos and confusion	 employees of the Control Stream have flied the writ petition on the Issue of a combined seniority list published by the administration on the basis 451 of instructions on 15.6.85	 as they found themselves exclud ed from the panel of staff to be taken into consideration for promotion to Group B. They pray that the circular dt. 6.1.84 and the follow up action taken culminating in the Selection List be set aside. The petitioner challenge the validity of two circulars issued by the Board	 one on 29.7.83 and the other on 26.1.2.1983	 restructuring the cadres as discriminatory as according to them they envisage 'mass upgradation ' to their detriment. The question for determination is whether the principle adopted on the strength of these circulars for fixing the inter se seniori ty of these employees is proper. Dismissing the writ petitions with liberty to the Peti tioners to move the Central Administrative Tribunal	 if so advised with fuller facts	 this Court	 HELD: The inequity is not apparent. Having to deal with two different streams	 differently placed	 the Government has to find out an equitable solution and it has been grop ing towards it. One method would perhaps have been to have fixed quotas for promotion from each of the streams but that is not necessarily the only method. An alternative method is being attempted here and the principle that grades of Rs.700 900 and above should be considered together being conceded the Department is trying to give some weightage by granting upgradation to each stream based on its total strength in order to balance the promotional chances in both the streams. It is possible that some individual cases may be affected but no answer to the question whether any class discrimination has resulted can be given unless fuller details are available and the practical impact of the latest position is placed before the Court. [463A C]