The Fifty Per Cent Ceiling

In one line

The best known number in Indian constitutional law appears nowhere in the Constitution.

In the wording a student can write in an exam: the fifty per cent ceiling is the judicially evolved rule that reservations under articles 15(4) and 16(4) should not ordinarily exceed half of the available seats or posts, subject to an exception for extraordinary situations, and it does not apply to the reservation for economically weaker sections under articles 15(6) and 16(6).

Where the figure came from

M.R. Balaji v. State of Mysore, AIR 1963 SC 649, struck down a reservation of sixty eight per cent of medical and engineering college seats. The Court said that a reservation of that size was a fraud on the constitutional power conferred by article 15(4), and that a special provision under that article should be less than fifty per cent, the exact figure depending on the relevant prevailing circumstances in each case.

Note two things. The statement was that the provision should be less than fifty per cent, not that it may go up to it. And the reasoning was not arithmetical: it was that article 15(4) authorises a special provision, and a provision covering more than half the field is not special but general, so the enabling clause would have swallowed the right it qualifies.

Indra Sawhney: the rule and its exception

Indra Sawhney v. Union of India, AIR 1993 SC 477, settled the position for article 16(4). Reservations under that clause should not exceed fifty per cent, that being the rule; the rule is subject to extraordinary situations, which must be approached with extreme caution; and it applies to each year, so the intake of a given year is the unit of measurement.

The extraordinary situation contemplated was of a far flung and remote area whose population is characteristically different, and the Court warned that the exception must not become the rule.

The same judgment held that reservation in promotion is not permitted by article 16(4), which produced the amendments treated in [Reservation in Promotion].

The three qualifications since

Carry forward, article 16(4B). Inserted by the Eighty First Amendment with effect from 9 June 2000, it provides that unfilled vacancies of a year reserved under clause (4) or clause (4A) may be treated as a separate class of vacancies to be filled in succeeding years, and that such vacancies shall not be considered together with the vacancies of the year in which they are filled for determining the fifty per cent ceiling on the total vacancies of that year.

That is a textual carve-out from the judicially created ceiling, and it means the ceiling is measured on current year vacancies alone.

Promotion, article 16(4A). M. Nagaraj v. Union of India, (2006) 8 SCC 212, upheld the amendments while holding that the ceiling of fifty per cent, the creamy layer and the sub-classification limits continue to apply.