UPSC Service Guide

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

The Services Guide

23 services via UPSC CSE 2026 (Notice No. 05/2026-CSE) + 1 via separate IFoS exam — classified as per official UPSC notifications, with deep-dive guides published one service at a time.

UPSC CSE 2026 (Notice 05/2026-CSE) · Prelims: 24 May 2026 · Mains: 21 Aug 2026 · Vacancies: 933  |  IFoS 2026 (Separate notification) · Prelims: 24 May 2026 (shared) · Mains: 22 Nov 2026 · Vacancies: ~80
CSE: 933 Vacancies 23 CSE Services 2 All India 13 Group A 3 Railway 5 Group B IFoS: ~80 Vacancies
★ All India Services 2 services via CSE · IAS & IPS · Serve both Centre & States · Constitutional status · IFoS via separate IFoS exam (see below)
✦ Published
S.No 1 · Most preferred service
IAS
All India Service
Indian Administrative Service
The steel frame of India — 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
✦ Published
S.No 2 · All India Service
IPS
All India Service
Indian Police Service
Law enforcement, internal security, and intelligence. Training at SVPNPA, Hyderabad. Career spans state police to heading CBI, IB, NSG, BSF, and CRPF; deputation to intelligence agencies including RAW.
SVPNPA, Hyderabad CBI / IB / RAW 26 State Cadres ~150 vacancies/yr
🌳 Indian Forest Service — Separate IFoS Exam All India Service · NOT part of CSE 23 · Shares Prelims with CSE · Separate Mains & Notification · IFoS Mains 2026: 22 Nov 2026
✦ Published
All India Service · Separate IFoS Exam
IFoS
IFoS — Not in CSE List
Indian Forest Service
Custodians of India's forests, wildlife, and environment — managing 23% of India's land. Shares Prelims with CSE but has entirely separate Mains, personality test, and UPSC notification. Science/engineering degree mandatory.
IGNFA · Dehradun State Forest Cadres Separate IFoS Mains ~80 vacancies/yr (IFoS)
Central Services — Group 'A' 13 services (incl. IFS & IRPFS) · Gazetted · Central government deployment
✦ Published
S.No 4 · Group A Central
IFS
Group A · Central
Indian Foreign Service
India's diplomatic corps. Officers serve as Ambassadors, High Commissioners, and Permanent Representatives at 193 missions. Compulsory foreign language. Two-thirds of career spent abroad.
MEA · New Delhi Ambassador / HC No State Cadre ~30 vacancies/yr
✦ Published
S.No 5 · Group A Central
IA&AS
Group A · Central
Indian Audit and Accounts Service
India's supreme audit institution arm. Officers audit Union & State government accounts, PSUs, and autonomous bodies under the CAG — a constitutional authority independent of the executive. Postings span AG offices in state capitals, CAG HQ Delhi, and international audit offices in London, Washington DC & Kuala Lumpur.
CAG of India AG Offices · Intl Postings No State Cadre ~25 vacancies/yr
✦ Published
S.No 6 · Group A Central
ICAS
Group A · Central
Indian Civil Accounts Service
Manages payments, accounting, budgeting, and internal audit for all civil ministries of the Union Government under the Controller General of Accounts (CGA). Handles ~90% of India's budgetary receipts & payments via a network of 28,000+ bank branches.
CGA · Min. of Finance Civil Accounts No State Cadre ~20 vacancies/yr
✦ Published
S.No 7 · Group A Central
ICLS
Group A · Central
Indian Corporate Law Service
Regulates India's corporate sector under the Ministry of Corporate Affairs — as Registrar of Companies, Official Liquidator, or NCLT member. Enforces the Companies Act 2013, LLP Act, and IBC 2016. Cadre strength ~300; first UPSC batch inducted in 2009.
Min. of Corporate Affairs ROC · OL · NCLT No State Cadre ~15 vacancies/yr
✦ Published
S.No 8 · Group A Central
IDAS
Group A · Central
Indian Defence Accounts Service
Financial audit, accounts, and internal audit for Army, Navy, Air Force, DRDO, BRO, and Ordnance Factories under the CGDA. Officers posted at cantonment towns across India.
CGDA · Delhi Cantt Cantonment Postings NADFM, Pune ~20 vacancies/yr
✦ Published
S.No 9 · Group A Central
IDES
Group A · Central
Indian Defence Estates Service
Manages 17+ lakh acres of defence land and 62 Cantonment Boards across India. Entry officers serve as CEOs of cantonments — urban governance meets strategic land protection.
DGDE · Raksha Sampada 62 Cantonment CEOs NIDEM, New Delhi ~10 vacancies/yr
✦ Published
S.No 10 · Group A Central
IIS
Group A · Central
Indian Information Service
India's government media service under MIB. Officers manage PIB press briefings, AIR broadcasts, Doordarshan news, and 148+ Field Outreach Bureaus. 20-month training at IIMC + FTII.
PIB · AIR · DD News IIMC, New Delhi FTII, Pune ~15 vacancies/yr
✦ Published
S.No 11 · Group A Central
IPoS
Group A · Central
Indian Postal Service
Manages India Post — world's largest postal network with 1.6 lakh post offices. Expanding mandate: IPPB banking, e-commerce logistics, and MGNREGA wage disbursement across 22 Postal Circles.
1.6L Post Offices IPPB · Rural Banking RAKNPA, Ghaziabad ~25 vacancies/yr
✦ Published
S.No 12 · Group A Central
IP&TAFS
Group A · Central
Indian Post & Telecommunication Accounts and Finance Service
Accounts and finance for DoT and DoP. Key role: assessing and collecting spectrum licence fees and SUC from Airtel, Jio, Vodafone, BSNL. Training at NIFM Faridabad (48 weeks).
DoT · DoP · CGCA Spectrum SUC Collection NIFM, Faridabad ~10 vacancies/yr
✦ Published
S.No 13 · Group A Central
IRS-IT
Group A · Central
Indian Revenue Service (Income Tax)
Administers direct taxes — income tax, corporate tax, and search & seizure — under CBDT. 16-month training at NADT, Nagpur. Officers earn a Masters in Taxation & Business Laws from NALSAR.
CBDT · Direct Taxes IT Raids · DTAA NADT, Nagpur ~80 vacancies/yr
✦ Published
S.No 14 · Group A Central
IRS-C&IT
Group A · Central
Indian Revenue Service (Customs & Indirect Taxes)
Administers GST, customs duty, and anti-smuggling under CBIC. Officers posted at ports, airports, and ICDs. Training at NACIN, Palasamudram, AP. Officers earn PG Diploma in Commercial Laws (PGDCL) from NLSIU, Bengaluru.
CBIC · GST · Customs Ports · Airports NACIN, Palasamudram ~70 vacancies/yr
✦ Published
S.No 15 · Group A Central
ITS
Group A · Central
Indian Trade Service (Grade III)
India's foreign trade policy service under DGFT. Officers handle FTP implementation, WTO negotiations in Geneva, export licensing, and anti-dumping investigations. Training at IIFT, New Delhi.
DGFT · Commerce Min. WTO Geneva Postings IIFT, New Delhi ~10 vacancies/yr
✦ Published
S.No 16 · Group A Central
IRPFS
Group A · Central
Indian Railway Protection Force Service
Uniformed service securing railways, passengers, and railway property. 65,000+ personnel, 12 RPSF battalions. Nanhe Farishtey rescued 80,000+ trafficked children. NDPS Act powers since 2019.
Uniformed · RPF Act 65,000+ Personnel JRRPFA, Lucknow ~20 vacancies/yr
Indian Railway Management Service (IRMS) 3 non-technical cadres via UPSC CSE · Engineering cadres moved to UPSC ESE from 2026
✦ Published
S.No 17 · Railway Group A
IRMS-T
Railway · Group A
IRMS — Traffic Service
Train operations, commercial revenue, and station management across Indian Railways. Entry as ADRMN (Traffic); career peak is Divisional Railway Manager and General Manager of a zonal railway.
Train Ops · Commercial NAIR, Vadodara ADRMN → DRM → GM ~30 vacancies/yr
✦ Published
S.No 18 · Railway Group A
IRMS-P
Railway · Group A
IRMS — Personnel Service
HR management for Indian Railways' 1.3 million+ employees — recruitment, promotions, industrial relations, and welfare. Entry as APO; officers oversee Railway Recruitment Boards at zonal level.
HR · Industrial Relations 1.3M Workforce NAIR, Vadodara ~20 vacancies/yr
✦ Published
S.No 19 · Railway Group A
IRMS-A
Railway · Group A
IRMS — Accounts Service
Financial management and internal audit for Indian Railways' ₹2.5+ lakh crore budget. Entry as ADFM (Asst Divisional Finance Manager); career path to Member (Finance), Railway Board.
Railway Finance · Audit ₹2.5L Cr Budget NAIR · IRIFM ~20 vacancies/yr
Central Services — Group 'B' 5 services · Union Territory & Armed Forces HQ administration
✦ Published
S.No 20 · Group B Central
AFHCS
Group B · Central
Armed Forces Headquarters Civil Service (Section Officer's Grade)
Administrative backbone of Army, Navy, Air Force, and IDS HQ. Only Group B Gazetted entry in CSE — enters as Section Officer (Level 7), promotes to Group A Deputy Director after ~6 years. Delhi-based career.
Army · Navy · AF HQ Section Officer (Level 7) Delhi Only · DHTI ~20 vacancies/yr
✦ Published
S.No 21 · Group B Central
DANICS
Group B · Central
Delhi, Andaman & Nicobar Islands, Lakshadweep, Daman & Diu and Dadra & Nagar Haveli Civil Service
Civil service for Union Territories under MHA. Entry as SDM / Asst Collector in Delhi, A&N, Lakshadweep, or Daman–Diu. IAS (AGMUT cadre) eligibility after ~8–9 years of service.
Delhi · A&N · Lakshadweep IAS (AGMUT) Pathway SDM / Asst Collector ~25 vacancies/yr
✦ Published
S.No 22 · Group B Central
DANIPS
Group B · Central
Delhi, Andaman & Nicobar Islands, Lakshadweep, Daman & Diu and Dadra & Nagar Haveli Police Service
Police service for Union Territories under MHA. Entry as DSP / SDPO. Delhi Police postings expose officers to cyber crime, economic offences, and major metro policing. IPS eligibility after qualifying service.
Delhi · A&N · Lakshadweep IPS Pathway DSP / SDPO Entry ~15 vacancies/yr
✦ Published
S.No 23 · Group B Central
PONDICS
Group B · Central
Pondicherry Civil Service
Civil service for Puducherry UT — India's only UT with an elected legislature and CM. Covers 4 non-contiguous enclaves across Tamil Nadu, Kerala, and Andhra Pradesh with French-era heritage laws.
Puducherry · 4 Enclaves Elected UT Govt French Heritage Admin ~3 vacancies/yr
✦ Published
S.No 24 · Group B Central
PONDIPS
Group B · Central
Pondicherry Police Service
Police service for Puducherry UT across 4 non-contiguous enclaves. Unique coastal security challenges, cross-border coordination with Tamil Nadu, Kerala & AP police, and tourism-area law enforcement.
Puducherry · 4 Enclaves Coastal Security Cross-state Coordination ~2 vacancies/yr
📋 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. CSS and IOFS have also been removed from the CSE list. — About IFoS: Although IFoS is constitutionally one of the three All India Services (alongside IAS & IPS), it is recruited via a separate UPSC notification and a separate Mains examination. It does not appear in UPSC CSE Notice No. 05/2026-CSE. Candidates write the same Prelims (GS + CSAT) for both CSE and IFoS, but must apply separately. CSE Mains 2026: 21 Aug 2026 · IFoS Mains 2026: 22 Nov 2026 · Vacancies are notified separately: ~80 IFoS vacancies vs 933 CSE vacancies in 2026.

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