UPSC CMS Exam: Eligibility, Pattern, Syllabus, and How Selection Works

UPSC CMS is the Combined Medical Services Examination, the exam through which the Union Public Service Commission recruits medical officers for the Central Health Service, Indian Railways and two Delhi civic bodies. It is a different exam from the UPSC Civil Services Examination, and an MBBS degree is all the qualification it asks for. This guide covers who can apply, the age limit, the exam pattern and marking, the syllabus, how selection works, and how CMS fits next to NEET PG for a graduate choosing between a government job and a postgraduate seat.

What the UPSC CMS exam is

UPSC CMS stands for Combined Medical Services Examination. UPSC holds it once a year to fill Group A medical officer posts. Selection has two stages: a written test of 500 marks and a personality test of 100 marks, which together make a 600-mark merit list.

The posts are medical officer posts, not specialty training seats. A CMS selection does not give you a PG seat, which is why CMS and NEET PG are separate tracks, even though you can prepare for both.

The CMS 2026 notice, published on 11 March 2026, advertised 1,358 vacancies across four services.

Service and post	Vacancies in 2026
Medical Officer, Central Health Service (general duty medical officers sub-cadre)	864
Assistant Divisional Medical Officer, Railways	450
General Duty Medical Officer, New Delhi Municipal Council	14
General Duty Medical Officer Grade II, Municipal Corporation of Delhi	30
Total	1,358

Vacancy numbers differ every year and can be revised, so check the current notice before you plan around them.

UPSC CMS 2026 at a glance

Stage	Date
Notification and applications open	11 March 2026
Last date to apply	31 March 2026
Written examination	2 August 2026
Written result (UPSC press note)	1 September 2026
Personality test	UPSC said the schedule would be uploaded on its website; check it for the current date

After the written result, qualified candidates had a 15-day window to log in to UPSC's portal, update their details and qualification status, and upload proof of passing the qualifying exam. Candidates who missed that window could not take part in the later stages. Shortlisted candidates also carry original documents for age, qualifications, community and disability claims, where applicable. Mark sheets appear on UPSC's website after the final result and stay available for 30 days.

UPSC's tentative calendar for 2027 lists the CMS notification for 3 March 2027 and the written exam for 18 July 2027. Treat both as expected dates until UPSC issues the notice. The 2026 application window ran for about three weeks, from 11 to 31 March, so a candidate who waits for the notice before collecting documents has little slack.

UPSC CMS eligibility

The core rules are short. The details sit in the notice for each cycle, so verify them there before you apply.

• Degree: an MBBS degree. You must have passed the written and practical parts of the final MBBS exam. Final-year candidates and those awaiting the final result can apply provisionally, but they must submit proof of passing within the time UPSC sets.
• Internship: the compulsory rotating internship must be completed before appointment. Check the notice for the date by which proof is due.
• Other degrees: BDS, BAMS and BHMS graduates are not eligible, because the exam requires an MBBS.
• Nationality: Indian citizens, along with a few other categories listed in the notice.
• Foreign medical qualifications: read the recognition and registration clauses in the notice before you apply.
• Attempts: the 2026 eligibility rules, as reported, mention no cap on attempts within the age window.
• Fee: the application fee in 2026 was ₹200, with no fee for women and SC/ST candidates.

The age limit depends on the post group.

Post group	Upper age limit
Most posts	32 years
Medical Officer posts in the Central Health Service (general duty medical officers sub-cadre)	35 years

For the 2026 cycle, age was counted on 1 August 2026. A 32-year limit therefore meant being born on or after 2 August 1994.

Category	Age relaxation
SC/ST	5 years
OBC	3 years
Persons with benchmark disabilities	10 years

Other relaxations, such as for ex-servicemen, defence personnel disabled in operations and certain J&K domiciles, are listed in the notice along with how they combine.

UPSC CMS exam pattern

The written test has two papers held on the same day. Each paper is objective type with four options per question, set in English, 2 hours long and worth 250 marks. UPSC describes both papers as being of MBBS standard.

Paper	Subjects and questions	Marks	Time
Paper I	General Medicine (96) and Pediatrics (24)	250	2 hours
Paper II	Surgery (40), Gynecology and Obstetrics (40), Preventive and Social Medicine (40)	250	2 hours
Personality test	Conducted by UPSC for candidates who qualify in the written test	100	—

The written marks and the personality test marks are added to prepare the final merit list of 600 marks.

A note on older papers: before the 2018 revision, Paper I also had a 30-question General Ability section. When you practice from previous-year papers, prefer post-2018 papers so the subject split matches today's pattern.

Negative marking and how to use it

A wrong answer costs one-third of the marks assigned to that question. Marking more than one option counts as a wrong answer with the same penalty, and an unanswered question costs nothing. UPSC may also set qualifying marks for either paper or both.

Each paper has 250 marks over 120 questions, so a question is worth about 2.08 marks if marks are spread evenly, and a wrong answer costs about 0.69. As an illustration, suppose you answer 100 questions in Paper I, get 80 right and 20 wrong, and leave 20 blank. Your score is about 80 × 2.083 − 20 × 0.694, which comes to roughly 152.8 out of 250.

The penalty also tells you when to guess. With four options, a blind guess has an expected gain of zero: a one-in-four chance of gaining a full question's marks against a three-in-four chance of losing one-third of them. Eliminate one option and the expected gain turns positive, at about one-ninth of a question's marks. Eliminate two and it rises to one-third. So skip questions where you have no idea, and attempt the ones where you can strike out at least one option.

With 120 questions in 120 minutes, you have about one minute per question. A workable approach is a first pass for questions you can answer immediately, then a second pass for the ones where you can eliminate options.

UPSC CMS syllabus

The syllabus is grouped by subject as UPSC lists it.

• General Medicine (Paper I): cardiology, respiratory diseases, gastrointestinal and genitourinary diseases, neurology, hematology, endocrinology and metabolic disorders, infections and communicable diseases, nutrition, dermatology, musculoskeletal diseases and psychiatry. It also covers emergency medicine, common poisoning, snakebite, tropical diseases, critical care, the pathophysiological basis of disease, and vaccine-preventable diseases.
• Pediatrics (Paper I): common childhood emergencies, basic newborn care, developmental milestones, childhood accidents and poisonings, birth defects and counselling, immunization, children with special needs, and national child health programs.
• Surgery (Paper II): general surgery (wounds, infections, tumors, head and neck, breast, the alimentary tract, liver, biliary system and pancreas, spleen, abdominal wall and abdominal injuries), along with urology, neurosurgery, ENT, thoracic surgery, orthopedics, ophthalmology, anesthesiology and traumatology. It also includes pre- and post-operative care, wound healing, fluid and electrolyte management, shock, and medicolegal and ethical issues.
• Gynecology and Obstetrics (Paper II): antenatal, intranatal and postnatal conditions, normal and complicated labor, applied anatomy and physiology of menstruation, genital tract infections and tumors, high-risk pregnancy and abortion, plus family planning methods and medical termination of pregnancy.
• Preventive and Social Medicine (Paper II): concepts of health and disease, epidemiology, demography and health statistics, communicable and non-communicable diseases, environmental, nutritional and occupational health, genetics, international health, medical sociology and health education, maternal and child health, and national health programs.

Where the marks come from

Question counts show where to spend your time. The marks column assumes each question carries equal marks within a paper.

Subject	Questions	Share of written questions	Approximate marks
General Medicine	96	40%	200
Pediatrics	24	10%	50
Surgery (with ENT, ophthalmology, orthopedics, traumatology)	40	16.7%	83.3
Gynecology and Obstetrics	40	16.7%	83.3
Preventive and Social Medicine	40	16.7%	83.3
Total	240	All	500

Medicine alone carries 40% of the written marks, and Medicine plus Pediatrics carries half. A candidate who is weak in Medicine cannot make up the gap elsewhere, which is why it comes first in the study plan below.

Personality test and final selection

The selection stages run in this order:

1. The written test (500 marks). UPSC may fix qualifying marks for either paper or both.
2. The detailed application and document update for qualified candidates, within the window UPSC announces after the result.
3. The personality test (100 marks), conducted by UPSC. It supplements the written papers and looks at qualities such as alertness, judgment and initiative.
4. The final merit list on the combined 600 marks.
5. Document verification and a medical examination before appointment.

Allocation of services and posts follows your rank and the preferences you give, so a higher rank widens your choice beyond just clearing the cut-off. Cut-offs are published with the final result and vary by year and category.

Salary and what the posts offer

The Central Health Service junior scale posts and the New Delhi Municipal Council posts were advertised at Pay Level 10 of the central pay matrix, with a basic pay range of ₹56,100 to ₹1,77,500. Allowances are added to basic pay and depend on the service and the city of posting, so in-hand pay differs between posts. Read the pay details in the notice for the specific post you want.

UPSC CMS vs NEET PG: how to decide

CMS and NEET PG answer different questions. CMS is a recruitment exam for medical officer jobs. NEET PG is the entrance exam for postgraduate seats, including MD, MS and DNB.

• If your goal is a specialty: NEET PG is the route. Start with the NEET PG exam pattern and marking scheme and the NEET PG preparation guide.
• If you want a government job soon after internship: CMS is the direct route, and its five subjects are a much smaller syllabus than NEET PG.
• If you are undecided: Medicine, Pediatrics, Surgery, Obstetrics and Gynecology, and Preventive and Social Medicine are core NEET PG subjects too, so preparation in them carries over. CMS has no separate sections for the pre- and para-clinical subjects, although pathophysiology sits underneath many clinical questions.

UPSC's tentative 18 July 2027 date for CMS is an anchor you can plan backward from. NEET PG dates are set by NBEMS, so check its latest schedule before you decide how to sequence the two.

A practical preparation plan

A candidate starting in late 2026 has roughly eight to nine months before the tentative July 2027 date. One way to use that time:

1. Months 1 to 4: cover Medicine and Pediatrics first, since they carry half of the written marks. Then do Surgery, Gynecology and Obstetrics, and Preventive and Social Medicine.
2. Months 5 to 7: move to subject-wise MCQs and post-2018 previous-year papers. MCQ practice in these five subjects, such as the practice question sets, turns reading into recall. Keep an error log that tags each miss as a knowledge gap, a misread, or a bad guess.
3. Final six weeks: take full-length timed sets, Paper I and Paper II back to back at 120 minutes each. Practice the two-pass approach and the elimination rule from the negative marking section.
4. In parallel: keep your documents ready, including MBBS marksheets, the internship certificate and any category certificates, because the 15-day window after the written result is short.

Mistakes that cost marks

• Treating Preventive and Social Medicine as optional. It carries 40 questions, which is about 83 marks if marks are spread evenly, the same as Surgery or Obstetrics and Gynecology.
• Guessing blind. A blind guess has zero expected gain under one-third negative marking, so it adds variance without adding marks.
• Practicing from pre-2018 papers. They include a General Ability section that the current pattern no longer has.
• Leaving the document window to the last day. Missing the 15-day window ends your participation in later stages.
• Relying on third-party pages for dates and vacancies. Check notices on UPSC's own website, because copied pages repeat each other's errors.