Summarize the following court judgment. ivil Appeal No. 4284 of 1988. From the Judgment and Order dated 30.3.88 of the Central Admn. Tribunal Hyderabad in O.A. No. 575 of 1987. A.D. Singh	 A. Subba Rao	 C.V.S. Rao and P. Parmeshwaran for the Appellants. K.T. Shastri Respondent in person. The Judgment of the Court was delivered by SAWANT	 J. The appellants	 Union of India and the Direc tor	 Technical Development and Production (Air)	 Ministry of Defence	 have preferred this appeal against the decision of the Central Administrative Tribunal	 Hyderabad Bench	 hold ing that respondent K.T. Shastry was entitled to remain in service upto the superannuation age of 60 years and was not liable to be retired at the alleged superannuation age of 58 years. The relevant admitted facts are that the respondent was recruited as a Senior Scientific Officer on October 12	 1966 in the Defence Science Service. He was posted in the Directorate of Technical Development and Production (Air)	 briefly called DTD & P. at the relevant time	 the Defence Science Service had three units under it	 namely	 1) Defence Research and Development Organisation (DRDO)	 2) Director ate General of Inspection (DGI) and 3) Directorate of Tech nical Development and Production (Air) (DTD & P). The recruitment when made was always to the Defence Science Service	 and after the recruitment	 the recruits were posted according to the exigency of the service	 in any of the said three units. Their 22 services were inter changeable and inter transferable be tween the three units. All	 the service conditions of the persons working in the three units including scales of pay	 superannuation age	 etc. were the same and were regulated by the same set of Rules	 viz. Defence Science Service Rules. In the year 1979	 the Defence Science Service was trifurcated and reconstituted as follows. (1) Defence Research and Development Organisation (DRDO) was reconstituted as Defence Research and Development Serv ice (DRDS). (2) Directorate of Technical Development and Production (Air) (DTD & P) was reconstituted as Defence Aeronautical Quality Assurance Service (DAQAS)	 and (3) Directorate General of Inspection (DGI) was reconstituted as Defence Quality Assurance Service (DQAS). The appellant who was working in DTD & P became a member of DAQAS. When the trifurcation was made	 the Service Rules governing the three units had a common Rule which was Rule 12 in DAQAS and DQAS	 and Rule 13 in DRDS which reads as follows: "Other conditions of service: (1) The conditions of service of the members of the service in respect of matters not expressly provided for in these Rules	 shall mutatis mutandis and subject to any special orders issued by the Government in respect of the service	 be the same as those applicable to officers (Civil ians) of corresponding status in similar scientific institu tions/organisations under the Government of India. At the time the present controversy arose and the respondent approached the Administrative Tribunal	 he was holding the post of Deputy Chief Scientific Officer. By an Office Memorandum No. 7(3)/ 85 D(R & D) of the Government of India	 Ministry of Defence	 Department of Defence Research & Development dated 24.12.1985	 the decision of the President was conveyed whereby Scientific and Technical personnel (gazetted) of D.R. and D.S. in the grade of Scientist 'E ' and above	 would retire at the age of 60 years and those in the lower grade for which flexible complementing scheme was applicable would also retire at the age of 60 years provided they had been promoted to the grades they were holding at the time of attaining the age of 58 years within the preced ing five years. Subsequently by OM No. 7(3)/85 D (R & D) dated 10.2.86	 the said decision was extended to all 23 Scientific and technical personnel of the DRDO i.e. DRDS as listed in the Appendix 'A ' of that Memo. By virtue of Rule 12 quoted above	 this benefit given to the members of DRDS was also available to the members of DAQAS	 since the said condition of service was not expressly provided for in the Service Rules. The Tribunal	 therefore	 held that the re spondent was not liable to be retired at the age of 58 years his superannuation age being deemed to have been increased to 60 years in view of the OM dated 24.12.85 read with OM dated 10.2.86 referred to above. It is this decision which is challenged before us by the appellants. Mr. Subba Rao	 learned counsel appearing for the appellants contended that the Government had a right to prescribe different conditions of service for the members belonging to the different units	 and merely because the superannuation age of the members of the DRDS was increased	 it could not be held that the respondent who belonged to another unit	 viz. DAQAS	 was entitled to the said benefit. There is no dispute that the Government has power to vary the service conditions of the members of the services from time to time. The question involved in the present appeal is	 however	 not whether the Government had such power. The question is whether the respondent was also entitled to the benefit of the power so exercised in the facts and circum stances of the case. The admitted facts are that in 1966 when the respondent was recruited to the Defence Science Service	 the three units belonged to the said Service and the employees were recruited initially to that service and then sent to different units. The service conditions of the employees belonging to the three units were the same and their services were inter changeable between the three units. The Service Rules which applied to all the three units were also common	 viz. Defence Science Service Rules. The three units	 therefore	 belonged to and constituted one single service. It is later in the year 1979	 that the Defence Research Service was reconstituted into three dif ferent services as stated above. However	 at that time	 admittedly no option was given to the employees working in the different units to opt for one or the other of the units. It appears that those who were already working in either of the three units were deemed to belong to the respective newly constituted service. This being so	 their service conditions will have to run parallel and no discrim ination can be made between them by an unilateral action. The classification made between them further has no rational basis and no nexus of such classification to the object sought to be achieved has been shown to us by Mr. Subba Rao appearing for the appellants. In the circumstances	 the denial of the benefit of the enhanced superannuation age to the members of one 24 unit while the same is granted to the members of the other unit amounts to discrimination	 violative of Article 16 of the Constitution. We are	 therefore	 satisfied that the decision of the Tribunal is both proper and valid	 and there is no substance in the present appeal. The appeal is	 there fore	 dismissed. We are informed that in spite of the decision of the Tribunal and even pending this appeal when no stay was granted	 the Appellant Union of India retired the respondent at the age of 58 years. We have been unable to understand this indefensible action on the part of the Appellant nor could the learned counsel for the Appellants explain it to us. We	 therefore	 direct the Appellants to reinstate the respondent in service within one week of this Order and to pay to him all his emoluments from the date of his arbitrary retirement till the date of his re instatement in service as if he had not been retired. We further direct that he would continue in service till he attains the age of 60 years	 unless of course for some other legal reasons	 it becomes necessary to discontinue his services before that date. We also understand that in the meanwhile the respond ent was paid all his retirement benefits. The Appellant will not recover any amount so paid to the respondent. The appeal is accordingly dismissed with aforesaid directions and with costs. T.N.A. Appeal dis missed.

Respondent was recruited as a Senior Scientific Officer in the Defence Science Service which was subsequently tri furcated and reconstituted. The Government of India enhanced the superannuation age of Scientific and Technical personnel of one of the newly constituted units upto 60 years by an order dated 24.12.1985. The respondent who was working in one of the other units of the reconstituted service	 filed an application in the Central Administrative Tribunal seeking a direction that he was entitled to the benefit of enhanced age of superannua tion upto 60 years as made applicable to the other unit which allowed the application. Hence this appeal by the Union of India. Dismissing the appeal	 this Court	 HELD: 1. In view of Rule 12 of the Defence Aeronautical Quality Assurance Service Rules	 1979 the benefit of en hanced age of superannuation given to the members of one unit was also available to the members of the other unit since the said condition of service was not expressly pro vided for in the Service Rules. At the time of reconstitu tion of the service no option was given to the employees working in the different units to opt for one or the other of the units. Those who were already working in either of the three units were deemed to belong to the respective newly constituted service. Therefore their service condi tions will have to run parallel and no discrimination can be made between them by an unilateral action. The classifica tion made between them further has no rational basis and no nexus of such classification to 21 the object sought to be achieved has been shown. In the circumstances	 the denial of the benefit of the enhanced superannuation age to the members of one unit while the same is granted to the members of the other units amounts to discrimination	 violative of Article 16 of the Constitution. [23A	 F	 G	 H	 24A] 2. The decision of the Tribunal is both proper and valid. The appellants are directed to reinstate the respond ent in service	 who would continue in service till he at tains the age of 60 years. [24A	 C D]