Discuss the implications of a caste census for reservation policy and Centre-state relations.

The Cabinet has approved caste enumeration within Census 2027, with caste captured electronically in the second phase of Population Enumeration [1]. Castes other than SC/ST will be recorded through an open free-text column, with a "no-caste" option and a right to decline [2]. Its value will turn less on collection than on classification.

Implications for reservation policy

• Evidence base: quota shares are still argued over using pre-Independence estimates; a fresh count can ground Articles 15(4) and 16(4) classifications in current numbers rather than inference.
• Sub-categorisation: the Rohini Commission (2017, under Article 340) was tasked to examine the "inequitable distribution of benefits of reservation among the OBCs" and devise scientific criteria [3] — impossible without caste-wise population and benefit-share data.
• Risk of unusable data: SECC 2011's open field produced about 46 lakh caste names — sub-castes, synonyms, spellings, surnames, gotras — so much so that the Cabinet created an expert group under Arvind Panagariya (NITI Aayog) only to classify them [4]; its report was never published. For 2027, officials say sorting and tabulation remain undecided [2].
• Judicial defensibility: quota expansion and the 50% ceiling debate (Indra Sawhney) need verified figures; ungrouped names yield no count, and no count means no court-proof justification.

Implications for Centre-state relations

• Uniformity gain: Census is a Union function; one national method [1] makes data comparable, unlike Bihar's and Telangana's state pick-list surveys, built to state-specific lists [2].
• Shared stakes: states, which maintain their own OBC lists and commissions (Article 342A(3), 105th Amendment), will press for access to raw returns.
• Friction points: classification decided centrally without published rules invites charges of opacity, while the data will feed contested demands on quota ceilings and delimitation.
• Cooperative execution: nearly 30 lakh state-deployed functionaries will conduct the enumeration [5].

A caste census is thus an enabling instrument, not an answer in itself. Publishing the classification protocol before Phase 2, releasing the Panagariya group's method, and using state OBC lists as a coding aid would convert raw names into usable evidence — advancing the social justice mandate of Article 340 through transparent, federally consultative statistics.