Summarize the following court judgment. ivil Appeal No. 4494 of 1989. From the Judgment and Order dated 31.5.88 of the Central Administrative Tribunal	 Allahabad in O.A. No. 427/1986. B. Dutta	 ASG. (N.P.)	 C.V. Subba Rao	 A. Subba Rao and P. Parmeshwaran for the Appellants. Harbans Lal and A.K. Mahajan for the Respondents. The Judgment of the Court was delivered by DUTT	 J. Special leave is granted. Heard learned counsel for both parties. The respondents were holding the posts of Junior Scien tific Officers (Group 'B ' posts) in the Defence Research & Development Service. They were promoted to the posts of Scientists 'B ' with effect from October 16	 1985 or from the date they would actually assume charge of the posts. The respondents filed an application before the Central Adminis trative Tribunal	 Allahabad	 claiming that they should have been promoted to the posts of Scientists 'B ' with effect from July 1	 1984. The Tribunal rejected the prayer of the respondents that their promotions should have been made with effect from July 1	 1984. The Tribunal	 however	 directed that their promotions should be with effect from the date on which the promotional posts were created. 753 The short question involved in this appeal is whether the Tribunal was justified in directing that the respondents ' promotion should be with effect from the date the promotion al posts were created. Under rule 8(1)(a) of the Defence Research & Development Service Rules	 1970	 hereinafter referred to as 'the Rules '	 all those who have been recruited before the promulgation of the Rules as Junior Scientific Officers in the Defence Research & Development Organisation on regular basis and possess the educational qualifications and experience as laid down for direct recruits	 shall be eligible	 till they are wasted out	 for promotion to the post of Scientist 'B ' up to 50 per cent of the vacancies in the grade. Under the first proviso to rule 8(1)(a)	 the total number of posts filled in that grade shall at no time exceed 50 per cent of the total sanctioned strength for the grade on the date of promulgation of the Rules	 and that this concession shall also be admissible to those persons who are appointed or promoted as Junior Scientific Officers on regular basis on or after the promulgation of the Rules. There were a total number of 512 posts available in the grade of Scientists 'B ' in 1979.1n view of rule 8(1)(a) of the Rules	 the Junior Scientific Officers were entitled to be promoted to the 50 per cent of these posts	 that is to say to 256 posts. These 256 posts were filled up by promo tion of the Junior Scientific Officers between the period 1979 and 1983. According to the respondents	 the posts of Scientists 'B ' to which they have been promoted with effect from October 16	 1985	 were created between 1984 and 1985 and that	 accordingly	 the respondents should have been promoted to these posts with effect from 1st July	 1984. It was the contention of the respondents that on previous occasions up to the year 1983	 promotions were given effect from 1st July of the year in which the promotions were granted. It has been already noticed that the Tribunal has overruled the said contention of the respondents and has directed that their promotions should be with effect from the date the said promotional posts of Scientists 'B ' were created. At the same time	 it has been found by the Tribunal that the flexible complementing scheme or SITU promotions	 as provided in rule 8(2)(f) of the Rules	 were not available to the Junior Scientific Officers. It is not disputed that the promotions of the Junior Scientific Officers to the posts of Scientists 'B ' are vacancy based and such promo tions are granted after the assessment by the Assessment Board as provided in the Rules. It has also been observed by the Tribunal that normally the promotions will take effect from the date of the order granting such promotions. The only ground on which the Tri 754 bunal has directed that the promotions of the respondents should take effect from the date the posts of Scientists 'B ' were created	 is that up to 1983 such promotions were given effect from 1st July of the year in which the promotions were granted. There is no statutory provision that the promotion to the post of Scientist 'B ' should take effect from 1st July of the year in which the promotion is granted. It may be that	 rightly or wrongly	 for some reason or other	 the promotions were granted from 1st July	 but we do not find any justifying reason for the direction given by the Tribu nal that the promotions of the respondents to the posts of Scientists 'B ' should be with effect from the date of the creation of these promotional posts. We do not know of any law or any rule under which a promotion is to be effective from the date of creation of the promotional post. After a post falls vacant for any reason whatsoever	 a promotion to that post should be from the date the promotion is granted and not from the date on which such post falls vacant. In the same way when additional posts are created	 promotions to those posts can be granted only after the Assessment Board has met and made its recommendations for promotions being granted. If on the contrary	 promotions are directed to become effective from the date of the creation of addi tional posts	 then it would have the effect of giving promo tions even before the Assessment Board has met and assessed the suitability of the candidates for promotion. In the circumstances	 it is difficult to sustain the judgment of the Tribunal. For the reasons aforesaid	 we set aside the judgment of the Tribunal directing that the promotions of the respond ents should be not from the date of the orders of promotion	 but from the date the posts were created. The orders of the appellants promoting the respondents with effect from Octo ber 16	 1985 will stand. The appeal is allowed. There will	 however	 be no order as to costs. N .P.V. Appeal allowed.

Under Rule 8(1)(a) of the Defence Research & Development Service Rules	 1970	 Junior Scientific Officers in the Defence Research & Development Organisation were eligible for promotion to the posts of Scientists 'B ' upto 50 per cent of the vacancies in the grade. The respondents who were holding the posts of Junior Scientific Officers	 and were promoted to the posts of Scientists 'B ' with effect from October 16	 1985 or from the date they actually assumed charge of the posts filed an application before the Central Administrative Tribunal	 contending that since the posts to which they had been promoted were created between 1984 and 1985	 they should have been promoted with effect from July 1984	 as was done on previous occasions upto 1983	 when promotions were ef fected from 1st July of the year in which promotions took place. The Tribunal rejected the prayer of the respondents and directed that the promotions should be effective from the date on which the promotional posts were created. The Union of India being aggrieved appealed to the Court. On the question whether the Tribunal was justified in directing the promotions to be effective from the date the promotional posts were created. Allowing the appeal	 this Court	 HELD: After a post fails vacant for any reason whatsoev er	 a promotion to that post should be from the date the promotion is granted and not from the date on which such post falls vacant. Similarly	 when additional posts are created	 promotions to those posts can be granted 752 only after the Assessment Board has met and made its recom mendations for promotions being granted. If	 however	 promo tions are directed to become effective from the date of creation of additional posts	 then it would have the effect of giving promotions even before the Assessment Board has met and assessed the suitability of the candidates for promotion. [754C E] In the instant case	 there is no statutory provision that the promotion to the post of Scientist 'B ' should take effect from 1st July of the year in which the promotion is granted. There is also no law or rule under which a promo tion is effective from the date of creation of the promo tional posts. The Tribunal was	 therefore	 in error in holding that the promotions should be effective from the date the promotional posts were created. The orders of the appellants promoting respondents from October 16	 1985 will stand. [754B C & F]