1.1 UPSC CMS Examination Overview & Eligibility

Key Takeaways

  • UPSC Combined Medical Services (CMS) is a national competitive examination conducted annually by Union Public Service Commission for recruitment of medical officers into Central Government health services.
  • Candidates must possess a passed MBBS degree (written + clinical rotations completed) from a recognized medical institution, or be in their final year awaiting internship completion prior to appointment.
  • The upper age limit is generally 32 years as of August 1st of the exam year, with statutory relaxations for OBC (3 years), SC/ST (5 years), and PwBD candidates (10 years).
  • Services recruited include Assistant Medical Officer (ADMO) in Railways, Medical Officer in Central Health Service (CHS), and General Duty Medical Officers (GDMO) in MCD and NDMC.
  • The recruitment process is a two-tier selection consisting of a 500-mark Computer Based Test (CBT) written examination followed by a 100-mark Personality Test (Interview).
Last updated: July 2026

1.1 UPSC CMS Examination Overview & Eligibility

High-Yield Core Concept: The UPSC Combined Medical Services (CMS) Examination is India's premier national recruitment test conducted by the Union Public Service Commission under Article 320 of the Constitution of India. It serves as the gateway for qualified MBBS doctors to enter Central Government health services, including the Indian Railway Health Service (IRHS), Central Health Service (CHS), Municipal Corporation of Delhi (MCD), and New Delhi Municipal Council (NDMC).


1. Exam Mandate & Administrative Framework

The Union Public Service Commission (UPSC) notifies the Combined Medical Services Examination annually (typically in April) to fill Medical Officer vacancies across various Central Government Ministries and municipal bodies. The examination process spans two distinct stages: a 500-mark written Computer Based Test (CBT) held usually in July, followed by a 100-mark Personality Test (Interview) conducted between November and January. Final recommendations are published by February.

Key Institutional Stakeholders & Participating Services

Service / CadreControlling AuthorityPost AssignedPrimary Duty / Workplace
Central Health Service (CHS)Ministry of Health & Family Welfare (MoHFW)Medical Officers (GDMO Sub-cadre)Central Govt Hospitals (RML, Safdarjung, LHMC), CGHS Wellness Centres
Indian Railway Health Service (IRHS)Ministry of Railways (Railway Board)Assistant Divisional Medical Officer (ADMO)Railway Divisional Hospitals, Health Units, Production Units, Relief Trains
Municipal Corporation of Delhi (MCD)Ministry of Home Affairs / MCDGeneral Duty Medical Officer (GDMO) Grade-IIMunicipal Hospitals, Polyclinics, Maternity & Child Welfare Centres in Delhi
New Delhi Municipal Council (NDMC)Ministry of Home Affairs / NDMCGeneral Duty Medical Officer (GDMO)NDMC Hospitals, Dispensaries, Chest Clinics, Health Posts

2. Statutory Educational Qualifications

To be eligible for the UPSC CMS Examination, a candidate must meet strict educational parameters established under the National Medical Commission (NMC) Act, 2019 (formerly Indian Medical Council Act, 1956).

A. Degree Requirement

  • Mandatory Qualification: The candidate must have passed both the written and practical/clinical examinations for the final Bachelor of Medicine and Bachelor of Surgery (MBBS) degree from a recognized University or Medical Institution in India incorporated by an Act of the Central or State Legislature.
  • Foreign Medical Graduates (FMGs): Candidates who obtained their primary medical qualification from an institution outside India must have cleared the Foreign Medical Graduate Examination (FMGE) / Screening Test conducted by the National Board of Examinations (NBE) and be registered with the NMC or any State Medical Council.

B. Provisional Eligibility & Internship Rules

  • Appearing Candidates: A candidate who has appeared or intends to appear at the final MBBS qualifying examination is eligible to apply provisionally for the written CBT.
  • Crucial Condition for Final Appointment: Admission to the written exam is strictly provisional. Candidates who qualify in the written test must submit proof of passing the final MBBS examination along with their Detailed Application Form-1 (DAF-1).
  • Compulsory Rotating Internship: Candidates must complete their 12-month Compulsory Rotating Medical Internship (CRMI) prior to final appointment. If a candidate passes the written CBT and interview but has not completed internship at the time of final result declaration, their appointment remains conditional until the internship completion certificate is produced before the specified cutoff date set by the UPSC/Ministry.

3. Age Limits & Relaxation Parameters

Age eligibility is determined against a fixed statutory cutoff date, which is August 1st of the year in which the examination notification is issued.

Standard Age Criteria

  • General Upper Age Limit: The candidate must not have attained the age of 32 years as on August 1st of the exam year. (e.g., For CMS 2026, the candidate must have been born not earlier than 2nd August 1994).
  • Special Exemption for CHS Officers: For the post of Medical Officers Grade in the Central Health Service (CHS), the upper age limit is relaxed up to 35 years as on August 1st for specific recruitment notifications as specified in the official annual gazette rules.

Upper Age Relaxations Summary Table

Category CodeCandidate CategoryMaximum Age RelaxationEffective Upper Age Limit
01Scheduled Castes (SC) & Scheduled Tribes (ST)Up to 5 Years37 Years (38 for CHS)
02Other Backward Classes (OBC - Non-Creamy Layer)Up to 3 Years35 Years (36 for CHS)
03Persons with Benchmark Disabilities (PwBD)Up to 10 Years42 Years (45 for CHS)
04Ex-Servicemen (ECOs/SSCOs with min 5 years service)Up to 5 Years37 Years (38 for CHS)
05Domiciled in UT of J&K during 1980–1989Up to 5 Years37 Years (38 for CHS)

4. Nationality & Citizenship Regulations

A candidate must be either:

  1. A Citizen of India, or
  2. A subject of Nepal, or
  3. A subject of Bhutan, or
  4. A Tibetan refugee who came over to India before January 1st, 1962, with the intention of permanently settling in India, or
  5. A person of Indian origin (PIO) who has migrated from Pakistan, Burma, Sri Lanka, East African countries of Kenya, Uganda, the United Republic of Tanzania, Zambia, Malawi, Zaire, Ethiopia, or Vietnam with the intention of permanently settling in India.

Note: Candidates belonging to categories (2), (3), (4), and (5) must possess an official certificate of eligibility issued by the Government of India.


5. Physical Standards & Medical Board Examination

In addition to academic and age eligibility, candidates must be declared medically fit by a duly constituted Central Medical Board after the Personality Test.

Medical Fitness Benchmarks

  • Visual Acuity Standards: Distant vision (with or without glasses) must be at least 6/6 in one eye and 6/9 in the other eye, or 6/6 in both eyes. High myopia (> -6.00D) or hypermetropia (> +4.00D) requires specialized fundus examination to rule out pathological degeneration.
  • Color Vision Requirements: Color vision is mandatory for appointment in Indian Railway Health Service (IRHS - ADMO) due to safety-critical duties associated with railway transportation (Class A-1 and Class A-2 medical standards). Candidates with severe color blindness may be restricted to non-railway cadres such as CHS or MCD.
  • Hearing & General Health: Pure tone audiometry must demonstrate normal hearing without active middle ear pathology. Candidates should be free from chronic systemic illnesses, active tuberculosis, organomegaly, or disabling musculoskeletal deformities.

6. Application Logistics & Document Verification

  • Portal: Applications are processed exclusively through the UPSC online portal (upsconline.nic.in).
  • DAF Stage: Candidates clearing the written CBT must fill out the online Detailed Application Form (DAF-1), uploading self-attested scans of:
    1. Matriculation / Secondary School Certificate (as proof of Date of Birth).
    2. Final MBBS Degree Certificate or Provisional Passing Certificate.
    3. Internship Completion Certificate or certificate from the Head of Institution stating expected completion date.
    4. Community / Category Certificate (SC/ST/OBC-NCL/EWS/PwBD) issued in the prescribed Central Government format by a competent authority before the specified crucial cutoff date.
    5. Photo ID proof (Aadhaar Card, Voter Card, Passport, PAN Card, or Driving License).
Loading diagram...
UPSC CMS Recruitment Pipeline
Test Your Knowledge

What is the standard upper age limit and statutory cutoff date for general candidates appearing in the UPSC Combined Medical Services Examination?

A
B
C
D
Test Your Knowledge

Regarding final year MBBS students appearing for UPSC CMS, which of the following statements correctly describes their eligibility and appointment conditions?

A
B
C
D
Test Your Knowledge

Which participating service recruited through UPSC CMS requires mandatory Class A-1 / Class A-2 color vision medical fitness due to safety-critical transportation duties?

A
B
C
D
Test Your Knowledge

What is the maximum age relaxation permissible for candidates belonging to the Persons with Benchmark Disabilities (PwBD) category applying for UPSC CMS?

A
B
C
D