Indian Statistical Service (ISS)
Collect and analyse national data for planning, surveys and policy in the Ministry of Statistics.
Facts checked 29/10/2026
Is this for me?
- Working with numbers and finding patterns that explain real life
- Doing work that feeds into national plans and policy
- A steady government career with postings in different ministries
- Very few vacancies each year, so selection is hard and may take several tries
- Long years of Maths and Statistics study before you can even apply
- Much of the work is careful, detailed office and desk work, and you can be transferred between cities
- Class 11–12 subjects
- No fixed Class 12 rule from UPSC for this service. The rule starts at degree level, so you need a degree with Statistics. Most B.Sc Statistics courses ask for Maths in Class 12, so take Maths in Class 11–12 (PCM is the usual route; some colleges also accept Commerce with Maths. Check each college's rules).
- First degree
- Bachelor's degree with Statistics, Mathematical Statistics or Applied Statistics as a subject, or a Master's in one of these. Typically 3 years for a B.Sc, plus 2 years if you do an M.Sc. Final-year students can apply (reported).
- Entrance exams
- Indian Economic Service/Indian Statistical Service Examination, held by UPSC every year. It has a written exam (6 papers, 1000 marks) and an interview. There is no prelims.
- Licence or registration
- None needed to start working.
What the work is like
Designing and running national surveys, building index numbers and national estimates, analysing data, and advising ministries. Officers work in the Ministry of Statistics and Programme Implementation (MoSPI) and in other central ministries and departments.
A day in the work
An ISS officer might start the day checking survey figures that came in from the field and spotting numbers that look wrong. Then they meet colleagues to plan the next survey or fix how a national estimate is calculated. After lunch they may write a note for a senior officer or another ministry explaining what the data show. Some days involve travel to state offices or field visits, and deadlines get tight when a major release is due.
The path, step by step
- Step 1 · Class 11–12Take Maths. Get comfortable with data, graphs, probability and logic. Check that the B.Sc Statistics courses you like accept your subject combination.
- Step 2 · Degree (3–5 years)Do a B.Sc (or M.Sc) with Statistics as a subject. Keep Maths and Statistics strong, and learn a statistics tool such as R or Python. Your degree must be complete before joining (check the notice's rule on final-year students). (reported — check with the official body)
- Step 3 · Apply (Feb–Mar)UPSC publishes one combined notice for IES and ISS and takes online applications for about three weeks. In 2026 the notice came on 11 February, the last date was 3 March, and the age limit was 21–30 on 1 August 2026 (relaxations for some categories; read the notice).
- Step 4 · Written exam (June)In 2026 the exam ran from 19 to 21 June. Six papers: General English (100), General Studies (100), Statistics I and II (objective, 200 each) and Statistics III and IV (descriptive, 200 each). That makes 1000 marks. The 2026 result came out on 4 August.
- Step 5 · InterviewThose who qualify attend the Personality Test at UPSC, New Delhi. In 2026 the interviews began on 2 November. The interview carries 200 marks (reported), and the final merit list adds written and interview marks.
- Step 6 · Medical and allotmentSelected candidates must meet the physical standards in the exam rules and are given the service by merit. The final result and joining dates are announced by UPSC and MoSPI.
- Step 7 · Training and probation (about 2 years)Direct recruits train as probationers at the National Statistical Systems Training Academy (NSSTA), Greater Noida. They also do a foundation course, modules at other institutes and on-the-job attachments in ministries. Each phase has exams you must pass.
Your real chances
In 2026 about 28 ISS posts were reported (16 for IES) (reported). UPSC's interview schedule for ISS lists at least 94 candidates for the personality test from 2 November 2026. UPSC has not published a clear count of how many people applied in the sources I could open.
Time and money
| Stage | Time | Government college or body | Private college | Help available |
|---|---|---|---|---|
| Class 11–12 (Maths, Statistics-friendly subjects) | 2 years | Your school's fees | — | — |
| B.Sc with Statistics (degree route) | 3 years | Check the college's fee page | Check the college's fee page | No official stipend or scholarship found for this route |
| Optional M.Sc in Statistics | 2 years | Check the college's fee page | Check the college's fee page | No official stipend or scholarship found for this route |
| UPSC IES/ISS exam application and written exam (2026 notice) | 1 day exam | ₹200 exam fee (General/OBC/EWS); free for women, SC, ST, PwBD | — | Fee exemption for women, SC, ST and PwBD candidates |
| Interview (Personality Test, New Delhi) | Part of the exam cycle (interview from November) | Check the notice | — | — |
| Probation and training at NSSTA, Greater Noida | About 2 years | Free: paid government probationer; no training fee | — | Paid training as part of the job; entry pay Pay Level 10, ₹56,100–1,77,500 (reported) |
Fees from: UPSC – Exam Notice 07/2026 IES/ISS · MoSPI – Probationary training of ISS · MoSPI: Probationary Training of ISS · MoSPI: Reference Manual for ISS Probationary Training (PDF). Fees change every year — check the college's own fee page before you pay.
What people earn
Entry-level Junior Time Scale: Pay Level 10, ₹56,100–1,77,500 (7th CPC pay matrix) plus allowances. This figure is from MoSPI's posting order for the 2019 batch; the 2026 notice may state it differently, so check the latest one (reported for 2026).
Pay follows government pay levels, so it rises steadily with promotions and years of service, and allowances change with the city of posting.
Myth and fact
For girls and students with disabilities
UPSC says all exam centres cater to candidates with benchmark disabilities, and the candidate must meet the physical standards in the exam rules. Women, SC, ST and PwBD candidates were exempt from the fee in 2026, and age relaxations exist for SC/ST, OBC and PwBD candidates. Read the notice for the exact figures (reported).
Try it now
- Class 7–9Run a small survey in your class or street (for example, how students travel to school). Record the answers and draw a bar chart and a pie chart. Then note what the data tell you and what they do not.
- Class 10–12Open the MoSPI website and read about one national survey or index (such as CPI or the labour force survey). Write five lines on how the data might be collected.Open link ↗
- College or afterTake a free probability or statistics course on NPTEL or SWAYAM and finish one data project using R or Python.Open link ↗
Good to know
- ISS is a Group A central service. Half of the entry-level posts are filled by UPSC (this exam) and the rest by promotion from the Subordinate Statistical Service (reported). That is a separate, slower route for those already in government.
- Vacancies are small and change every year. In 2026 about 28 ISS posts were reported, so a good backup plan matters.
- UPSC runs IES (for Economics postgraduates) and ISS (for Statistics) in the same exam notice. They are different services with different papers.
- Rules for age relaxation, fees and the number of attempts can change each year. Always read the latest UPSC notice at upsc.gov.in.
Sources: UPSC – Exam Notice 07/2026 IES/ISS (11 Feb 2026) · UPSC – Press note: written result IES/ISS 2026 (4 Aug 2026) · UPSC – Personality Test notice IES/ISS 2026 (15 Oct 2026) · MoSPI – Probationary training of ISS · MoSPI – Posting order of ISS 2019 batch (Level 10 pay) · MoSPI – Roles and responsibilities of divisions (NSSTA, ISS cadre)