UPSC Services That Require the Same Prelims Examination

Published: Sunday, December 21, 2025, 18:14 [IST]

The UPSC Civil Services Preliminary Examination is a common screening test for multiple prestigious services under the Government of India. A single Prelims exam serves as the gateway for IAS, IPS, IFS, and other Group A and Group B services. Understanding which services share the same Prelims helps aspirants plan preferences, eligibility, and preparation more effectively.

UPSC: Services That Require the Same Prelims

The Union Public Service Commission (UPSC) conducts the Civil Services Examination (CSE) annually to recruit officers for various administrative, police, diplomatic, and revenue services. One of the most important features of the UPSC CSE is that a single Preliminary Examination is used to shortlist candidates for multiple services.

Purpose of a Common Prelims Examination

The UPSC Prelims acts as:

A screening test
A uniform benchmark of aptitude and awareness
A fair shortlisting mechanism for lakhs of candidates

The Prelims consists of:

GS Paper I (Merit-based)
CSAT Paper II (Qualifying - 33%)

Prelims marks are not counted in the final merit list but decide eligibility for Mains across all services.

Group A Services Covered Under the Same Prelims

Candidates clearing the same Prelims examination become eligible for Mains and final selection into the following Group A services:

All India Services

Indian Administrative Service (IAS)
Indian Police Service (IPS)
Indian Forest Service (IFS)*

(*IFS has a separate Mains exam but shares the same Prelims GS Paper I with CSE.)

Central Services Group 'A'

Indian Foreign Service (IFS - Foreign)
Indian Revenue Service (IRS - Income Tax & Customs)
Indian Audit and Accounts Service (IA&AS)
Indian Defence Accounts Service (IDAS)
Indian Civil Accounts Service (ICAS)
Indian Corporate Law Service (ICLS)
Indian Ordnance Factories Service (IOFS)
Indian Railway Management Service (IRMS)

Group B Services Using the Same Prelims

Several Group B services also recruit candidates through the same Prelims:

Indian Police Service (DANIPS)
Delhi, Andaman & Nicobar Islands Civil Service (DANICS)
Pondicherry Civil Service (PCS)
Pondicherry Police Service (PPS)

These services are allotted based on final rank and preference order.

Special Case: Indian Forest Service (IFS)

IFS shares the same GS Paper I of Prelims
CSAT qualification is also mandatory
However, IFS Mains is conducted separately with different optional subjects
Candidates must submit a separate application for IFS

This allows aspirants to prepare for both CSE and IFS simultaneously.

How Service Allocation Works After Prelims

Clearing Prelims does not guarantee a specific service. Final service allocation depends on:

Mains marks
Interview marks
Final rank
Category-wise reservation
Service preference order

Higher-ranked candidates get top services like IAS, IPS, IFS, while others are allotted remaining services based on availability.

Advantages of a Common Prelims

Reduces exam burden
Ensures equal opportunity
Allows aspirants to aim for multiple services with one preparation
Encourages holistic understanding of governance and society

Common Misconceptions

Different Prelims for IAS and IPS
Prelims marks affect service choice
Separate exams for each service

In reality, one Prelims exam opens doors to all services under UPSC CSE.

Conclusion

The UPSC Civil Services Prelims is a single, common gateway to multiple elite services of the Indian government. From IAS and IPS to IRS and allied services, all candidates begin their journey through the same Preliminary Examination. Success in Prelims allows aspirants to compete for a wide range of services based on merit, preference, and final rank.