UPSC Service Guide

UPSC CSE 2026 Β· Notice No. 05/2026-CSE Β· Released 4 Feb 2026

The Services Guide

All 23 services you can be allocated through UPSC CSE 2026 β€” classified exactly as per the official UPSC notification, with deep-dive guides published one service at a time.

UPSC CSE 2026 Β· Prelims: 24 May 2026 Β· Mains: 21 Aug 2026 Β· Total vacancies: ~933
933 Vacancies 23 Services 2 All India 17 Group A 4 Group B
β˜… All India Services 2 services Β· Serve both Centre & States Β· Constitutional status
✦ Published
S.No 1 Β· Most preferred service
IAS
All India Service
Indian Administrative Service
The steel frame of India β€” the premier generalist service. From District Collector to Cabinet Secretary, the IAS is the only civil service that commands the full pyramid of Indian governance.
District Collector Cabinet Secretary LBSNAA, Mussoorie 24 State Cadres ~180 vacancies/yr
S.No 2
IPS
All India Service
Indian Police Service
Law enforcement, internal security, and intelligence. Training at NPA, Hyderabad. Career spans state police hierarchy to heading CBI, IB, RAW, NSG, BSF, and CRPF at national level.
NPA, Hyderabad CBI / IB / RAW 24 State Cadres
Central Services β€” Group ‘A’ 14 services (incl. IFS & IRPFS) Β· Gazetted Β· Central government deployment
S.No 3
IFS
Group A Β· Central
Indian Foreign Service
Diplomacy and international relations under MEA. Postings every 3–4 years globally. Officers serve as Ambassadors, High Commissioners, and Consul Generals. Foreign language mandatory.
MEA Ambassador No State Cadre
S.No 4
IA&AS
Group A Β· Central
Indian Audit and Accounts Service
Constitutional audit of all government accounts under the CAG of India. Highly intellectually demanding, no field postings. One of the most underrated services given its constitutional significance.
CAG of India Govt Audit No Field Posting
S.No 5
ICAS
Group A Β· Central
Indian Civil Accounts Service
Manages civil government accounts, payments, and internal audit under the Controller General of Accounts (CGA). Covers all Union ministries and departments.
CGA Civil Accounts
S.No 6
ICLS
Group A Β· Central
Indian Corporate Law Service
Regulatory oversight of corporate affairs under MCA β€” ROC offices, NCLT, and Companies Act enforcement. A niche, specialist service with growing relevance post-IBC 2016.
MCA Companies Act NCLT / ROC
S.No 7
IDAS
Group A Β· Central
Indian Defence Accounts Service
Financial management and internal audit of defence expenditure under CGDA. Officers are posted with the Army, Navy, Air Force, and defence establishments across India.
CGDA Defence Finance Army / Navy / AF
S.No 8
IDES
Group A Β· Central
Indian Defence Estates Service
Management of defence lands, cantonments, and military estates under DGES. Administers approximately 1.8 million acres of defence land and 62 cantonment boards across India.
DGES 62 Cantonments 1.8M Acres
S.No 9
IIS
Group A Β· Central
Indian Information Service
Government communications, media management, and public relations under MIB. Officers work with PIB, Doordarshan, All India Radio, DAVP, and NFDC β€” managing India’s official media narrative.
PIB Doordarshan / AIR MIB
S.No 10
IPoS
Group A Β· Central
Indian Postal Service
Managing India Post β€” the world’s largest postal network with 1.6 lakh post offices. Growing mandate spans India Post Payments Bank (IPPB), e-commerce logistics, and rural financial inclusion.
India Post IPPB Rural Fintech
S.No 11
IP&TAFS
Group A Β· Central
Indian Post & Telecommunication Accounts and Finance Service
Financial management and accounts for telecom and postal sectors under DoT and DoP. Handles budgeting, internal audit, and financial advisory for these major government departments.
DoT / DoP Telecom Finance
S.No 12
IRS-IT
Group A Β· Central
Indian Revenue Service (Income Tax)
Direct tax assessment, investigation, and enforcement under CBDT. Handles high-profile evasion cases and policy. Training at NADT, Nagpur. Often preferred over IPS for work-life balance.
CBDT IT Raids NADT, Nagpur
S.No 13
IRS-C&IT
Group A Β· Central
Indian Revenue Service (Customs & Indirect Taxes)
GST administration, customs duty enforcement, and anti-smuggling under CBIC. Controls ports, airports, and border checkpoints. Also handles anti-evasion of indirect taxes across India.
CBIC GST & Customs Ports & Airports
S.No 14
ITS
Group A Β· Central
Indian Trade Service (Grade III)
Promotes India’s foreign trade under DGFT and Ministry of Commerce. Officers handle export licensing, trade policy, international trade facilitation, and FTA implementation.
DGFT Foreign Trade Commerce Ministry
S.No 15
IRPFS
Group A Β· Central
Indian Railway Protection Force Service
Security of railway property, passengers, and staff β€” one of India’s largest uniformed forces. Physical standards apply. Officers rise from Asst Commandant to Director General level.
Uniformed Force Physical Standards Railway Security
Indian Railway Management Service (IRMS) 3 non-technical cadres via UPSC CSE Β· Engineering cadres moved to UPSC ESE from 2026
S.No 16
IRMS-T
Railway Β· Group A
IRMS β€” Traffic Service
Operations management, train scheduling, commercial and freight management across India’s railway network. Officers rise from ADRMN to Divisional Railway Manager and General Manager of a zone.
Train Operations Non-Technical Β· CSE ADRMN β†’ GM
S.No 17
IRMS-P
Railway Β· Group A
IRMS β€” Personnel Service
Human resources management for Indian Railways β€” one of the world’s largest employers (~1.3 million staff). Handles recruitment, industrial relations, staff welfare, and service matters.
HR Management Non-Technical Β· CSE 1.3M Workforce
S.No 18
IRMS-A
Railway Β· Group A
IRMS β€” Accounts Service
Financial management and internal audit for Indian Railways β€” a budget exceeding β‚Ή2.5 lakh crore. Officers handle budgeting, expenditure control, and accounts across all railway zones and divisions.
Railway Finance Non-Technical Β· CSE β‚Ή2.5L Cr Budget
Central Services β€” Group ‘B’ 4 services Β· Union Territory & Armed Forces HQ administration
S.No 19
AFHCS
Group B Β· Central
Armed Forces Headquarters Civil Service (Section Officer’s Grade)
Administrative and secretarial support to Armed Forces HQ (Army, Navy, Air Force, CDS, DMA). Works on defence procurement, policy coordination, and inter-service administration.
Armed Forces HQ Section Officer Grade
S.No 20
DANICS
Group B Β· Central
Delhi, Andaman & Nicobar Islands, Lakshadweep, Daman & Diu and Dadra & Nagar Haveli Civil Service
IAS-equivalent civil administration for specified Union Territories under MHA. Officers perform field and secretariat roles similar to IAS for these centrally governed territories.
UT Administration MHA Delhi / A&N / Lakshadweep
S.No 21
DANIPS
Group B Β· Central
Delhi, Andaman & Nicobar Islands, Lakshadweep, Daman & Diu and Dadra & Nagar Haveli Police Service
IPS-equivalent policing for specified Union Territories under MHA. Officers manage law and order, criminal investigations, and public security across these centrally governed territories.
UT Police MHA
S.No 22
PONDICS
Group B Β· Central
Pondicherry Civil Service
Civil administration for the Union Territory of Puducherry β€” including Karaikal, MahΓ©, and Yanam. Officers work alongside IAS officers in the UT administration under the Lt. Governor.
Puducherry UT Lt. Governor
S.No 23
PONDIPS
Group B Β· Central
Pondicherry Police Service
Police and law enforcement for the Union Territory of Puducherry across its four geographically separated enclaves β€” Puducherry, Karaikal, MahΓ©, and Yanam.
Puducherry UT UT Police
πŸ“‹ Key changes in UPSC CSE 2026 service list: The IRMS Engineering cadres (IRSEE, IRSME, IRSE, IRSSE) have been moved to the UPSC Engineering Services Examination (ESE) from 2026. The Central Secretariat Service (CSS) and Indian Ordnance Factories Service (IOFS) have also been removed from the CSE list. The Indian Forest Service (IFoS) has shared Prelims with CSE but is a separate examination β€” it is not part of the 23 services listed above.

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