In the case of M.R. Balaji v. State of Mysore (1963), the Supreme Court examined the extent of reservations provided under Article 15(4) (provision for advancement of socially and educationally backward classes and Scheduled Castes and Scheduled Tribes). The Court held that while the state can make reservations, it must be reasonable and cannot be excessive. The Court observed that a reservation of 68% was excessive and would amount to a "fraud on the Constitution" as it would practically destroy the guarantee of equality of opportunity. This case is significant for introducing the idea of a 50% ceiling on reservations (except in extraordinary circumstances) and for using the phrase "fraud on the Constitution" in relation to excessive reservation.