The supreme Court first clarified the concept of Vertical and Horizontal Reservation in the case of Indra Sawhney and Others v. Union of India and others (1992) Supp (3) SCC 217.

Jeevan Reddy, J. speaking for himself and on behalf of three Judges of Supreme Court observed as under: –

“812. We are also of the opinion that this rule of 50% applies only to reservations in favour of backward classes made under Article 16(4). A little clarification is in order at this juncture: all reservations are not of the same nature. There are two types of reservations, which may, for the sake of convenience, be referred to as ‘vertical reservations’ and ‘horizontal reservations’. The reservations in favour of Scheduled Castes, Scheduled Tribes and other backward classes [under Article 16(4)] may be called vertical reservations whereas reservations in favour of physically handicapped [under clause (1) of Article 16] can be referred to as horizontal reservations.

Horizontal reservations cut across the vertical reservations – what is called interlocking reservations. To be more precise, suppose 3% of the vacancies are reserved in favour of physically handicapped persons; this would be a reservation relatable to clause (1) of Article 16. The persons selected against this quota will be placed in the appropriate category; if he belongs to SC category he will be placed in that quota by making necessary adjustments; similarly, if he belongs to open competition (OC) category, he will be placed in that category by making necessary adjustments. Even after providing for these horizontal reservations, the percentage of reservations in favour of backward class of citizens remains – and should remain – the same. This is how these reservations are worked out in several States and there is no reason not to continue that procedure.”

In Swati Gupta (Ms.) v. State of U.P. and others (1995) 2 SCC 560, the effect of para 2 of G.O. dated 17.05.1994 was considered by a bench of two Judges of Supreme Court and it was stated:-

“3. Similarly, the other defect in the circular reserving 35% seats for general category has been removed. The vertical reservation is now 50% for general category and 50% for Scheduled Castes, Scheduled Tribes and Backward Classes. Reservation of 15% for various categories mentioned in the earlier circular which reduced the general category to 35% due to vertical reservation has now been made horizontal in the amended circular extending it to all seats. The reservation is no more in general category. The amended circular divides all the seats in CPMT into two categories-one, general and other reserved. Both have been allocated 50%.

Para 2 of the circular explains that candidates who are selected on merit and happen to be of the category mentioned in para 1 would be liable to be adjusted in general or reserved category depending on to which category they belong, such reservation is not contrary to what was said by Supreme Court in Indra Sawhney11. Whether the reservation for such persons should have been made or not was not challenged, therefore, Supreme Court is not required to examine it.”

Compartmentalized reservation and Overall Reservation in Horizontal Reservation

In Anil Kumar Gupta and others v. State of U.P. and others (1995) 5 SCC 173, a bench of two Judges of Supreme Court explained the concept of overall reservation as against compartmentalized reservation and detailed the steps to be undertaken while filling up seats for vertical and horizontal reservation as under:-

“15. On a careful consideration of the revised notification of 17-12-1994 and the aforementioned corrigendum issued by the Lucknow University, we are of the opinion that in view of the ambiguous language employed therein, it is not possible to give a definite answer to the question whether the horizontal reservations are overall reservations or compartmentalised reservations. We may explain these two expressions. Where the seats reserved for horizontal reservations are proportionately divided among the vertical (social) reservations and are not inter-transferable, it would be a case of compartmentalised reservations.

We may illustrate what we say: Take this very case; out of the total 746 seats, 112 seats (representing fifteen per cent) should be filled by special reservation candidates; at the same time, the social reservation in favour of Other Backward Classes is 27% which means 201 seats for OBCs; if the 112 special reservation seats are also divided proportionately as between OC, OBC, SC and ST, 30 seats would be allocated to the OBC category; in other words, thirty special category students can be accommodated in the OBC category; but say only ten special reservation candidates belonging to OBC are available, then these ten candidates will, of course, be allocated among OBC quota but the remaining twenty seats cannot be transferred to OC category (they will be available for OBC candidates only) or for that matter, to any other category; this would be so whether requisite number of special reservation candidates (56 out of 373) are available in OC category or not; the special reservation would be a watertight compartment in each of the vertical reservation classes (OC, OBC, SC and ST).

As against this, what happens in the overall reservation is that while allocating the special reservation students to their respective social reservation category, the overall reservation in favour of special reservation categories has yet to be honoured. This means that in the above illustration, the twenty remaining seats would be transferred to OC category which means that the number of special reservation candidates in OC category would be 56+20=76. Further, if no special reservation candidate belonging to SC and ST is available then the proportionate number of seats meant for special reservation candidates in SC and ST also get transferred to OC category. The result would be that 102 special reservation candidates have to be accommodated in the OC category to complete their quota of 112. The converse may also happen, which will prejudice the candidates in the reserved categories. It is, of course, obvious that the inter se quota between OC, OBC, SC and ST will not be altered.”

Difference between Vertical and Horizontal Reservation

In Rajesh Kumar Daria etc. v. Rajasthan Public Service Commission and others (2007) 8 SCC 785, a bench of three judges of Supreme Court considered the difference between vertical and horizontal reservations as under:-

“8. We may also refer to two related aspects before considering the facts of this case. The first is about the description of horizontal reservation. For example, if there are 200 vacancies and 15% is the vertical reservation for SC and 30% is the horizontal reservation for women, the proper description of the number of posts reserved for SC, should be: “For SC: 30 posts, of which 9 posts are for women.” We find that many a time this is wrongly described thus: “For SC: 21 posts for men and 9 posts for women, in all 30 posts.” Obviously, there is, and there can be, no reservation category of “male” or “men”.

9. The second relates to the difference between the nature of vertical reservation and horizontal reservation. Social reservations in favour of SC, ST and OBC under Article 16(4) are “vertical reservations”. Special reservations in favour of physically handicapped, women, etc., under Articles 16(1) or 15(3) are “horizontal reservations”. Where a vertical reservation is made in favour of a Backward Class under Article 16(4), the candidates belonging to such Backward Class, may compete for non-reserved posts and if they are appointed to the non-reserved posts on their own merit, their number will not be counted against the quota reserved for respective Backward Class. Therefore, if the number of SC candidates, who by their own merit, get selected to open competition vacancies, equals or even exceeds the percentage of posts reserved for SC candidates, it cannot be said that the reservation quota for SCs has been filled. The entire reservation quota will be intact and available in addition to those selected under open competition category. (Vide Indra Sawhney, R.K. Sabharwal v. State of Punjab (1995) 2 SCC 745Union of India v. Virpal Singh Chauhan (1995) 6 SCC 684 and Ritesh R. Sah v. Dr. Y.L. Yamul (1996) 3 SCC 253.) But the aforesaid principle applicable to vertical (social) reservations will not apply to horizontal (special) reservations. Where a special reservation for women is provided within the social reservation for Scheduled Castes, the proper procedure is first to fill up the quota for Scheduled Castes in order of merit and then find out the number of candidates among them who belong to the special reservation group of “Scheduled Caste women”.

If the number of women in such list is equal to or more than the number of special reservation quota, then there is no need for further selection towards the special reservation quota. Only if there is any shortfall, the requisite number of Scheduled Caste women shall have to be taken by deleting the corresponding number of candidates from the bottom of the list relating to Scheduled Castes. To this extent, horizontal (special) reservation differs from vertical (social) reservation. Thus women selected on merit within the vertical reservation quota will be counted against the horizontal reservation for women. Let us illustrate by an example:

If 19 posts are reserved for SCs (of which the quota for women is four), 19 SC candidates shall have to be first listed in accordance with merit, from out of the successful eligible candidates. If such list of 19 candidates contains four SC woman candidates, then there is no need to disturb the list by including any further SC woman candidate. On the other hand, if the list of 19 SC candidates contains only two woman candidates, then the next two SC woman candidates in accordance with merit, will have to be included in the list and corresponding number of candidates from the bottom of such list shall have to be deleted, so as to ensure that the final 19 selected SC candidates contain four woman SC candidates. (But if the list of 19 SC candidates contains more than four woman candidates, selected on own merit, all of them will continue in the list and there is no question of deleting the excess woman candidates on the ground that “SC women” have been selected in excess of the prescribed internal quota of four.)

10. In this case, the number of candidates to be selected under general category (open competition), were 59, out of which 11 were earmarked for women. When the first 59 from among the 261 successful candidates were taken and listed as per merit, it contained 11 woman candidates, which was equal to the quota for “general category women”. There was thus no need for any further selection of woman candidates under the special reservation for women. But what RPSC did was to take only the first 48 candidates in the order of merit (which contained 11 women) and thereafter, fill the next 11 posts under the general category with woman candidates. As a result, we find that among 59 general category candidates in all 22 women have been selected consisting of eleven woman candidates selected on their own merit (candidates at Sl. Nos. 2, 3, 4, 5, 9, 19, 21, 25, 31, 35 and 41 of the selection list) and another eleven (candidates at Sl. Nos. 54, 61, 62, 63, 66, 74, 75, 77, 78, 79 and 80 of the selection list) included under reservation quota for “general category women”. This is clearly impermissible. The process of selections made by RPSC amounts to treating the 20% reservation for women as a vertical reservation, instead of being a horizontal reservation within the vertical reservation.

11. Similarly, we find that in regard to 24 posts for OBC, 19 candidates were selected by RPSC in accordance with merit from among OBC candidates which included three woman candidates. Thereafter, another five women were selected under the category of “OBC women”, instead of adding only two which was the shortfall. Thus there were in all 8 women candidates among the 24 OBC candidates found in the selection list. The proper course was to list 24 OBC candidates as per the merit and then find out number of woman candidates among them, and only fill the shortfall to make up the quota of five for women.”

In K. Krishna Murthy (Dr.) and others v. Union of India and another (2010) 7 SCC 202, a Constitution Bench of Supreme Court observed that seats earmarked for women belonging to the General Category are not accounted for, if one has to gauge whether the upper ceiling of 50% has been breached. The observations were as under:-

“44. With respect to the State legislations under challenge, it was argued that the 50% ceiling would not be crossed under most of them since it is only the vertical reservations (i.e. on communal lines in favour of SCs/STs/OBCs) that are taken into consideration for this purpose. Even though there is a 33% reservation in favour of women in elected local bodies, the same is in the nature of a horizontal reservation which intersects with the vertical reservations in favour of SCs/STs/OBCs. In such a scenario, the seats occupied by women belonging to the general category cannot be computed for the purpose of ascertaining whether the 50% upper ceiling has been breached.

… … …

64. In the absence of explicit constitutional guidance as to the quantum of reservation in favour of backward classes in local self-government, the rule of thumb is that of proportionate reservation. However, we must lay stress on the fact that the upper ceiling of 50% (quantitative limitation) with respect to vertical reservations in favour of SCs/STs/OBCs should not be breached. On the question of breaching this upper ceiling, the arguments made by the petitioners were a little misconceived since they had accounted for vertical reservations in favour of SCs/STs/OBCs as well as horizontal reservations in favour of women to assert that the 50% ceiling had been breached in some of the States. This was clearly a misunderstanding of the position since the horizontal reservations in favour of women are meant to intersect with the vertical reservations in favour of SCs/STs/OBCs, since one-third of the seats reserved for the latter categories are to be reserved for women belonging to the same. This means that seats earmarked for women belonging to the general category are not accounted for if one has to gauge whether the upper ceiling of 50% has been breached.”

In Public Service Commission, Uttaranchal etc. v. Mamta Bisht and others (2010) 12 SCC 204, the view taken by the High Court that one Neetu Joshi, on her own merit, was entitled to be considered in General category and as such she could not be counted against seats reserved for “Uttaranchal Mahila” category; was under challenge. A bench of two Judges of Supreme Court set aside the view taken by the High Court with following observations:-

“3. Out of 42 posts, 26 were filled up by general category and 16 by reserved category candidates. Some women candidates stood selected in the general category while others had been given the benefit of horizontal reservation being residents of Uttaranchal. Respondent 1, being aggrieved preferred Writ Petition No. 780 of 2003 (M/B) in the High Court of Uttaranchal seeking quashment of select list dated 31-7-2003 mainly on the ground that women candidates belonging to Uttaranchal had secured marks making them eligible to be selected in the general category and had it been done so, Respondent 1 could have been selected in the reserved category being a woman of Uttaranchal. It had also been pleaded in the petition that some of the women candidates who not only claimed the benefit of horizontal reservation but have been selected giving the said benefit, did not submit their respective certificate of domicile at the time of filling up the application forms but they produced the said certificate at a later stage and it was accepted.

4. The High Court accepted the first submission of Respondent 1 after examining the record of selection and came to the conclusion that the last selected woman candidate who was given the benefit of horizontal reservation for Uttaranchal women had secured marks higher than the last selected candidate in the general category. Thus, the said candidate ought to have been appointed against the general category vacancy and Respondent 1 ought to have been offered the appointment giving her the benefit of horizontal reservation for Uttaranchal women. Hence, these appeals.

… … …

13. In fact, the High Court allowed the writ petition only on the ground that the horizontal reservation is also to be applied as vertical reservation in favour of reserved category candidates (social) as it held as under:

In view of the above, Neetu Joshi (Sl. No. 9, Roll No. 12320) has wrongly been counted by Respondent 3/Commission against five seats reserved for Uttaranchal Women General Category as she has competed on her own merit as general candidate and as the fifth candidate the petitioner should have been counted for Uttaranchal Women General Category seats.”

Admittedly, the said Neetu Joshi has not been impleaded as a respondent. It has been stated at the Bar that an application for impleadment had been filed but there is nothing on record to show that the said application had ever been allowed. Attempt had been made to implead some successful candidates before Supreme Court but those applications stood rejected by Supreme Court.

14. The view taken by the High Court on application of horizontal reservation is contrary to the law laid down by Supreme Court in Rajesh Kumar Daria v. Rajasthan Public Service Commission (2007) 8 SCC 785, wherein dealing with a similar issue Supreme Court held as under: (SCC pp. 790-91, para 9)

“9. The second relates to the difference between the nature of vertical reservation and horizontal reservation. Social reservations in favour of SCs, STs and OBCs under Article 16(4) are ‘vertical reservations’. Special reservations in favour of physically handicapped, women, etc. under Articles 16(1) or 15(3) are ‘horizontal reservations’. Where a vertical reservation is made in favour of a Backward Class under Article 16(4), the candidates belonging to such Backward Class, may compete for non-reserved posts and if they are appointed to the nonreserved posts on their own merit, their number will not be counted against the quota reserved for respective Backward Class. Therefore, if the number of SC candidates, who by their own merit, get selected to open competition vacancies, equals or even exceeds the percentage of posts reserved for SC candidates, it cannot be said that the reservation quota for SCs has been filled. The entire reservation quota will be intact and available in addition to those selected under open competition category. (Vide Indra Sawhney, R.K. Sabharwal v. State of PunjabUnion of India v. Virpal Singh Chauhan and Ritesh R. Sah v. Dr. Y.L. Yamul.) But the aforesaid principle applicable to vertical (social) reservations will not apply to horizontal (special) reservations. Where a special reservation for women is provided within the social reservation for Scheduled Castes, the proper procedure is first to fill up the quota for Scheduled Castes in order of merit and then find out the number of candidates among them who belong to the special reservation group of ‘Scheduled Caste women’. If the number of women in such list is equal to or more than the number of special reservation quota, then there is no need for further selection towards the special reservation quota. Only if there is any shortfall, the requisite number of Scheduled Caste women shall have to be taken by deleting the corresponding number of candidates from the bottom of the list relating to Scheduled Castes. To this extent, horizontal (special) reservation differs from vertical (social) reservation. Thus women selected on merit within the vertical reservation quota will be counted against the horizontal reservation for women.”

Paragraph 9 of Rajesh Kumar Daria etc. v. Rajasthan Public Service Commission and others referred to the well-established principle that a candidate belonging to any of the vertical reservation categories, on the basis of his own merit, is entitled to be selected in the Open or General Category and in such eventuality his selection is not to be counted against the quota reserved for such vertical reservation category. We may for the sake of clarity reproduce the following extract from the decision in Ritesh R. Sah v. Dr. Y.L. Yamul and Others which noted the larger Bench decisions in Indra Sawhney v. Union of India and R. K. Sabharwal v. State of Punjab and stated:-

“13. There cannot be any dispute with the proposition that if a candidate is entitled to be admitted on the basis of his own merit then such admission should not be counted against the quota reserved for Scheduled Caste or Scheduled Tribe or any other reserved category since that will be against the constitutional mandate enshrined in Article 16(4).

In a case Indra Sawhney v. Union of India commonly known as Mandal case, Supreme Court held thus: (SCC p. 735, para 811)

“In this connection it is well to remember that the reservations under Article 16(4) do not operate like a communal reservation. It may well happen that some members belonging to, say, Scheduled Castes get selected in the open competition field on the basis of their own merit; they will not be counted against the quota reserved for Scheduled Castes; they will be treated as open competition candidates.”

In R.K. Sabharwal v. State of Punjab the Constitution Bench of Supreme Court considered the question of appointment and promotion and roster points vis-a-vis reservation and held thus: (SCC p. 750, para 4)

“When a percentage of reservation is fixed in respect of a particular cadre and the roster indicates the reserve points, it has to be taken that the posts shown at the reserve points are to be filled from amongst the members of reserve categories and the candidates belonging to the general category are not entitled to be considered for the reserved posts. On the other hand the reserve category candidates can compete for the non-reserve posts and in the event of their appointment to the said posts their number cannot be added and taken into consideration for working out the percentage of reservation. Article 16(4) of the Constitution of India permits the State Government to make any provision for the reservation of appointments or posts in favour of any Backward Class of citizens which, in the opinion of the State is not adequately represented in the Services under the State. It is, therefore, incumbent on the State Government to reach a conclusion that the Backward Class/Classes for which the reservation is made is not adequately represented in the State Services. While doing so the State Government may take the total population of a particular Backward Class and its representation in the State Services. When the State Government after doing the necessary exercise makes the reservation and provides the extent of percentage of posts to be reserved for the said Backward Class then the percentage has to be followed strictly. The prescribed percentage cannot be varied or changed simply because some of the members of the Backward Class have already been appointed/promoted against the general seats.

As mentioned above the roster point which is reserved for a Backward Class has to be filled by way of appointment/promotion of the member of the said class. No general category candidate can be appointed against a slot in the roster which is reserved for the Backward Class. The fact that considerable number of members of a Backward Class have been appointed/promoted against general seats in the State Services may be a relevant factor for the State Government to review the question of continuing reservation for the said class but so long as the instructions/rules providing certain percentage of reservations for the Backward Classes are operative the same have to be followed. Despite any number of appointees/promotees belonging to the Backward Classes against the general category posts the given percentage has to be provided in addition.”

In Union of India v. Virpal Singh Chauhan (SCC at p. 705) it has been held that while determining the number of posts reserved for Scheduled Castes and Scheduled Tribes, the candidates belonging to reserved category but selected/promoted on the rule of merit (and not by virtue of rule of reservation) shall not be counted as reserved category candidates.”

Reference

Suarav Yadav v. State of UP(2020)