The Union Public Service Commission (UPSC) follows the reservation policy of the Government of India to ensure fair representation of socially and economically disadvantaged sections in civil services.

Reservation benefits apply at different stages of the Civil Services Examination (CSE), including eligibility, age relaxation, number of attempts, fee exemption, and selection. Understanding UPSC reservation rules is essential for aspirants to correctly assess their eligibility and avoid application errors.
Categories Eligible for Reservation
UPSC provides reservation benefits to candidates belonging to:
Each category has specific rules regarding age limit, number of attempts, exam fees, and vacancies.
UPSC allocates vacancies according to government norms:
PwBD reservation is horizontal, meaning it cuts across all categories (General, OBC, SC, ST, EWS).
The basic age limit for UPSC CSE is 21 to 32 years for the General category. Relaxations include:
Age relaxation is cumulative only in specific cases defined by UPSC.
Reservation also affects the maximum attempts allowed:
Attempts are counted from the year a candidate appears in Prelims, regardless of qualification.
UPSC charges an application fee, but exemptions apply:
Prelims: Reservation applies only for eligibility and cut-off qualification.
Mains & Interview: Category-wise cut-offs and reservation norms apply.
Final Merit List: Prepared category-wise as per total marks, with reserved category candidates eligible for selection under General category if they score above the General cut-off.
This ensures merit is not compromised while maintaining social justice.
OBC candidates must belong to the Non-Creamy Layer (NCL) to claim reservation. Those falling under the creamy layer are treated as General category candidates, even if they belong to an OBC caste.
EWS reservation is available only to candidates not covered under SC/ST/OBC reservations and who meet income and asset criteria notified by the government. Valid EWS certificates are mandatory.
Conclusion
UPSC reservation rules aim to balance merit with inclusivity by providing fair opportunities to underrepresented sections of society. Aspirants must carefully understand category-specific benefits related to age, attempts, fees, and selection to plan their UPSC journey effectively and avoid mistakes during the application and examination process.