The Union Government has deferred its proposal to include the Karnataka Scheduled Castes and Scheduled Tribes (Reservation of Seats in Educational Institutions and of Appointments or Posts in the Services under the State) Act, 2022 in the Ninth Schedule of the Constitution, citing pending judicial proceedings. The Ninth Schedule shields laws from fundamental rights challenges under Article 31-B. Karnataka's 2022 Act sought to increase OBC, SC, and ST reservations beyond the 50% ceiling set in Indra Sawhney.

The Karnataka Reservation Act, 2022 significantly enhanced reservation quotas for OBCs, SCs, and STs in state government jobs and educational institutions, pushing total reservations well past the 50% ceiling established by the Supreme Court in Indra Sawhney v. Union of India (1992). Legally, any law breaching that ceiling is vulnerable to Article 14, 15, and 16 challenges in court.

Inclusion in the Ninth Schedule, introduced by the First Constitutional Amendment Act, 1951, immunises a law from judicial review on fundamental rights grounds under Article 31-B — a protection the Supreme Court itself qualified in I.R. Coelho v. State of Tamil Nadu (2007), holding that even Ninth Schedule laws enacted after April 24, 1973 (Kesavananda Bharati date) are subject to basic structure review.

The Union Government's decision to defer Ninth Schedule inclusion while Karnataka's Act faces active litigation is constitutionally significant: it acknowledges the Coelho caveat. If courts strike down the Act, Ninth Schedule inclusion would be moot. If courts uphold it, inclusion becomes a protective shield against future challenges.

For aspirants, this episode crystallises three intersecting doctrines — the 50% reservation ceiling, Ninth Schedule immunity, and its basic structure qualification — all of which examiners repeatedly mine. It also raises federalism questions: state reservation expansions require central backing for Ninth Schedule protection, revealing the Centre-State legislative interplay on social justice policy.