ISRO Recruitment 2026: 175 Scientist/Engineer 'SC' Posts - Exam Pattern, Eligibility, Apply by 16 Sep
Department of Space  /  ISRO  /  Centralised Recruitment Board Window open 27 Aug – 16 Sep 2026
Government recruitment · Advt ISRO:ICRB:03(EMC):2026

ISRO is hiring 175 Scientist/Engineer ‘SC’ officers

BE/B.Tech graduates in Electronics, Mechanical and Computer Science can apply for Group ‘A’ Gazetted posts in Level 10, starting at ₹56,100 basic. Selection is through ISRO’s own written test and interview — a GATE score is not required and plays no part in the merit panel.

Recruitment parameters
Advt no.ISRO:ICRB:03(EMC):2026
PostScientist/Engineer ‘SC’
GradeGroup ‘A’ Gazetted
Pay levelLevel 10 · ₹56,100 basic
Age as on 16-09-2628 years
Window closes16-09-2026, 23:55
175Total posts
65%Or CGPA 6.84 minimum
100Marks in the CBT
37Test cities
In one paragraph

What is ISRO Scientist/Engineer ‘SC’ recruitment 2026?

ISRO Scientist/Engineer ‘SC’ 2026 (Advt No. ISRO:ICRB:03(EMC):2026, dated 27 August 2026) is a direct recruitment drive by the ISRO Centralised Recruitment Board, Department of Space, for 175 posts in Level 10 of the Pay Matrix with a minimum basic pay of ₹56,100 per month. Vacancies are split as 100 Electronics, 53 Mechanical and 22 Computer Science (each figure including one post at the autonomous body PRL). Eligibility is a BE/B.Tech or equivalent in the relevant branch with at least 65% aggregate marks or CGPA 6.84 out of 10, and age up to 28 years as on 16 September 2026. Selection is a 100-mark written test or CBT followed by an interview, weighted 50:50no GATE score is involved. Online applications run from 27 August to 16 September 2026 (11:55 PM) on isro.gov.in.

Who can apply

Fresh BE/B.Tech graduates

No experience required, but the degree must be completed within the course duration prescribed by the university. Only Indian nationals may apply.

How you are judged

Two stages, equal weight

A discipline paper plus an aptitude paper decide who reaches the interview. The final panel gives 50% to written marks and 50% to the interview.

Where you work

Any ISRO centre

Appointees can be posted at any Centre or Unit of the Department of Space and are liable to transfer between them on a need basis.

Vacancy manifest

ISRO recruitment 2026 vacancy details by discipline

Each post code is a separate competition. Electronics carries well over half the drive, while Computer Science is the narrowest gate of the three.

Post code · BE001 / BE001A 100 posts of 175

Scientist/Engineer ‘SC’ (Electronics)

99 posts at ISRO centres plus one at PRL. Requires BE/B.Tech in Electronics & Communication Engineering with 65% or CGPA 6.84.

PwBD identified: A 1 · B 16 · C 3 · E 1
Post code · BE002 / BE002A 53 posts of 175

Scientist/Engineer ‘SC’ (Mechanical)

52 posts at ISRO centres plus one at PRL. Requires BE/B.Tech in Mechanical Engineering with 65% or CGPA 6.84.

PwBD identified: A 3 · B 9 · C 4 · E 1
Post code · BE003 / BE003A 22 posts of 175

Scientist/Engineer ‘SC’ (Computer Science)

21 posts at ISRO centres plus one at PRL. Requires BE/B.Tech in Computer Science Engineering with 65% or CGPA 6.84. The narrowest list of the three — prepare with the ISRO CS & IT test series 2026.

PwBD identified: A 4 · B 2 · C 1 · D 1
Electronics100
Mechanical53
Computer Science22

Backlog and interchange: several PwBD slots are backlog vacancies. If no suitable candidate is available in a notified disability category, the post may be filled by interchange among the five categories, which is why ISRO encourages all PwBD candidates from categories A to E to apply. Vacancy counts are tentative and any change is notified by corrigendum on isro.gov.in.

22 CS posts, one written test

Computer Science candidates: start mock tests now

The ISRO Scientist/Engineer Test Series 2026 for Computer Science & IT runs full-length papers in the exact 80 + 20 pattern, with the same −1/3 penalty, so exam day holds no surprises.

Join the test series
Important dates

ISRO ICRB 2026 application timeline

The fee deadline is the same as the application deadline. Age is reckoned as on 16 September 2026, so the closing date doubles as the eligibility cut-off.

Window opens 27 Aug 2026 Online registration begins on isro.gov.in
Window closes 16 Sep 2026 Registration shuts at 11:55 PM
Fee deadline 16 Sep 2026 Last date to pay via Bharatkosh
Age reckoned 16 Sep 2026 Upper age limit 28 years on this date

Answer keys come fast. ISRO publishes the written test answer keys on its website within three working days of the exam. Objections must be raised within five days of publication, with valid justification, and only through the link provided after the test — email or any other route will not be considered.

Eligibility

ISRO Scientist/Engineer ‘SC’ eligibility criteria 2026

Three conditions decide whether your application survives scrutiny: the degree and its marks, the way your university reports those marks, and your age on the closing date.

Educational qualification by post code
Post codeDisciplineRequired degreeMinimum marks
BE001 / BE001AElectronicsBE/B.Tech or equivalent in Electronics & Communication Engineering65% or CGPA 6.84/10
BE002 / BE002AMechanicalBE/B.Tech or equivalent in Mechanical Engineering65% or CGPA 6.84/10
BE003 / BE003AComputer ScienceBE/B.Tech or equivalent in Computer Science Engineering65% or CGPA 6.84/10

The CGPA rule that disqualifies people every cycle

Both CGPA and percentage on the certificate

At least one of the two must meet ISRO's norm — either CGPA 6.84 or 65%. Meeting one is enough.

Only CGPA on the certificate

The CGPA itself must be 6.84 or above. Conversion into a percentage is not permitted, even if your university prescribes a conversion formula. The same logic applies in reverse when only a percentage is shown.

Dual or integrated degrees: if the certificate lists graduation and post-graduation separately, the graduation figure is reckoned. If only one common figure covers the whole course, that final figure is used. If the certificate prescribes nothing, the cumulative figure from the final or consolidated marksheet applies. These rules hold whether or not your institution publishes a conversion formula.

Age limit

28 years as on 16 September 2026. Serving Central Government civilian employees, ex-servicemen and Persons with Benchmark Disabilities are eligible for age relaxation as per Government of India orders. For PwBD reservation, the relevant disability must be at least 40%, and candidates holding manual certificates are advised to get them digitised on the UDID portal in good time.

Selection stage 1

ISRO written test / CBT pattern 2026

Two hours, 100 marks, two separately-qualified parts. Part B is small but it carries its own cut-off, so a strong technical paper cannot carry a weak aptitude paper.

Question paper structure
PartContentDurationQuestionsMarksMarking
Part A Area / discipline specific 90 min 80 MCQs 80 +1 correct · 0 unattempted · −1/3 wrong
Part B Aptitude and ability — numerical, logical, diagrammatic, abstract and deductive reasoning 30 min Up to 15 MCQs 20 No negative marking

Qualifying marks in the written test

Unreserved candidates: 50% in each of Part A and Part B. PwBD candidates, where posts are reserved: 40% in each part. The parts qualify independently.

What the negative marking means in practice

At −1/3 per wrong answer in Part A, three wrong guesses wipe out one correct answer. Blind guessing costs you; informed elimination down to two options is usually still worth it.

Part B is where candidates get caught out. It is only 20 marks and 15 questions, but the 50% cut-off applies to it separately. Reasoning practice is not optional preparation — the IT Officer full course carries a dedicated aptitude and reasoning block alongside the core CS syllabus.

Selection stage 2

ISRO interview shortlisting and marking scheme

Candidates are shortlisted from the written test in a 1:5 ratio against vacancies, with an aggregate minimum of 10 candidates. For reserved vacancies, distinct additional candidates are shortlisted at the same 1:5 ratio, without regard to reserved-category candidates already in the UR list.

How the 100 interview marks are distributed

Technical (academic) knowledge40
General awareness in the area of specialisation20
Presentation and communication skill20
Comprehension10
Academic achievements10
The 10 academic achievement marks, broken down
ComponentConditionMarks
Institute typeIIT, IISc, IIST, NIT, or an institute in the NIRF top 20 — otherwise nil3
Academic performanceCGPA above 9 or percentage above 85%4
Academic performanceCGPA 7.5 to 9 or percentage 71% to 85% — otherwise nil2
Institute rankRank 1 to 3 awarded by the institute — otherwise nil3

Final qualifying thresholds and the merit panel

Minimum marks required for final selection
CategoryWritten testInterviewAggregate
Unreserved50%50%60%
PwBD, where posts are reserved40%40%50%

The final panel gives 50% weightage to written test marks and 50% to interview marks. Ties are broken in sequence: marks in the written test first, then marks in the essential qualification, then date of birth with the older candidate placed higher. ISRO reserves the right to change the qualifying criteria for administrative reasons.

40 of the 100 interview marks are technical knowledge and another 20 are general awareness in your area of specialisation — both drawn from the same core syllabus you revise for the written test. That overlap is why a structured subject course pays twice: the IT Officer course and test series covers DSA, DBMS, OS, Computer Networks and Software Engineering to the depth an interview panel probes.

Fee and refund

ISRO application fee 2026: why you pay ₹750 for a ₹250 fee

ISRO front-loads a processing fee and returns it to candidates who actually turn up for the exam. The refund is the incentive to sit the test rather than register and skip it.

What you pay and what comes back
CategoryPaid upfrontNon-refundable feeRefunded if you appear
Women, SC, ST, PwBD, ex-servicemen₹750Nil₹750 (full)
All other candidates₹750₹250₹500
Anyone who does not appear for the test₹750Nil

How to pay

Online only, through the Bharatkosh e-payment gateway. The payment link appears after you submit the online application. Accepted modes: internet banking, UPI and domestic debit cards. Cash, cheque, draft, money order and IPO are not accepted, and service charges are borne by the applicant.

Getting your refund back

The refund goes to the bank account entered in your application, so account holder name, account number and IFSC must be correct. ISRO is not responsible for refund failures caused by wrong bank details, or for pending and failed payment transactions.

Duplicate applications: if you submit more than one application for the same post, only the one against which the application fee was received within the last date will be considered.

Application process

How to apply for ISRO recruitment 2026 online

Applications are accepted online only, on isro.gov.in, between 27 August and 16 September 2026. Candidates registered on the National Career Service (NCS) portal who meet the eligibility conditions may apply following the same procedure.

  1. Register and save your registration number

    You receive an online Registration Number on registering. Preserve it — it is your reference for the rest of the process.

  2. Enter your email ID correctly

    Hall tickets and call letters for the written test and the interview are sent by email only. All further communication goes to your registered email or the ISRO website, so check spam and junk folders regularly.

  3. Upload photograph and signature to spec

    A rejected upload means a rejected application, so match the dimensions and file sizes exactly before you submit.

  4. Pay through Bharatkosh and check every field

    Review all entered fields before submitting, and avoid multiple applications for the same post. The fee deadline is the application deadline: 16 September 2026.

Upload specifications

Photograph and signature requirements
ItemFormatDimensionsFile sizeRules
Photograph .jpg / .jpeg 200 × 230 px preferred 100–200 KB Recent passport-style colour picture on a light, preferably white background. No caps, hats or dark glasses. If you wear spectacles, no reflections and eyes clearly visible.
Signature .jpg / .jpeg 140 × 60 px preferred 80–150 KB Signed on white paper with a black ink pen. Not in capital letters. Clearly visible and appropriately sized.

Only three things are uploaded now: photograph, signature, and the certificate supporting a full fee refund where applicable (women, SC/ST/PwBD, ex-servicemen). Originals for qualification, age, category and the employer's NOC are produced later, when called for — at interview stage.

Test cities

Where is the ISRO written test held?

Across 37 venues nationwide. ICRB reserves the right to cancel or change a venue and reallot candidates to another centre, and no TA is paid for attending the written test.

  • Agartala
  • Ahmedabad
  • Bengaluru
  • Bhopal
  • Bhubaneshwar
  • Chandigarh / Mohali
  • Chennai
  • Dehradun
  • Delhi
  • Ernakulam
  • Gorakhpur
  • Gurugram
  • Guwahati
  • Hyderabad
  • Indore
  • Jaipur
  • Jammu
  • Jodhpur
  • Kanpur
  • Kavaratti
  • Kolkata
  • Lucknow
  • Mangaluru
  • Mumbai
  • Mysore
  • Nagpur
  • Patna
  • Port Blair
  • Pune
  • Raipur
  • Ranchi
  • Shillong
  • Tiruchirapalli
  • Thiruvananthapuram
  • Varanasi
  • Vijayawada
  • Visakhapatnam

Interview travel

Second-class train fare is reimbursed both ways by the shortest route from the city stated in your online application to the interview venue. A change of address or city for this purpose is not entertained.

NOC for serving employees

Candidates working in Central or State Government, PSUs or autonomous bodies must produce an NOC at the interview. Failure to produce it in original means no interview and no travel allowance.

Pay and benefits

Level 10, minimum basic ₹56,100, plus DA, HRA and Transport Allowance. New Pension Scheme, medical cover for self and dependents, subsidised canteen, limited quarters in lieu of HRA, LTC, group insurance and House Building Advance.

Watch for fraud: ISRO explicitly warns candidates not to take cognisance of fake offers of appointment for jobs at ISRO. Every genuine communication comes through your registered email or the official website. Canvassing in any form is a disqualification, and legal matters fall under Bengaluru, Karnataka jurisdiction.

Frequently asked

ISRO recruitment 2026: common questions answered

Do I need a GATE score to apply for ISRO Scientist/Engineer ‘SC’ 2026?

No. ISRO's Centralised Recruitment Board runs its own written test and interview. A GATE score plays no part in eligibility or in the final merit panel. What you need is a BE/B.Tech or equivalent in the relevant discipline with at least 65% aggregate marks or CGPA 6.84 out of 10.

How many vacancies are there in ISRO recruitment 2026?

175 posts under advertisement ISRO:ICRB:03(EMC):2026 — 99 Electronics, 52 Mechanical and 21 Computer Science at ISRO centres, plus one post each in the same three disciplines at the autonomous body PRL. The count is tentative and can be revised by corrigendum.

What is the ISRO Scientist/Engineer ‘SC’ exam pattern?

100 marks in two parts. Part A is discipline-specific: 80 MCQs in 90 minutes, +1 for correct, 0 for unattempted, −1/3 for wrong. Part B is aptitude and ability: up to 15 MCQs in 30 minutes for 20 marks, covering numerical, logical, diagrammatic, abstract and deductive reasoning, with no negative marking.

What are the qualifying marks for the ISRO written test?

Unreserved candidates need at least 50% in each of Part A and Part B separately. PwBD candidates, where posts are reserved, need 40% in each part. A high score in one part does not compensate for falling short in the other.

What is the age limit for ISRO recruitment 2026?

28 years as on 16 September 2026. Serving Central Government civilian employees, ex-servicemen and Persons with Benchmark Disabilities are eligible for age relaxation as per Government of India orders.

What is the salary of an ISRO Scientist/Engineer ‘SC’?

Level 10 of the Pay Matrix with a minimum basic pay of ₹56,100 per month, plus Dearness Allowance, House Rent Allowance and Transport Allowance. Employees come under the New Pension Scheme and receive medical facilities for self and dependents, subsidised canteen, limited quarters in lieu of HRA, Leave Travel Concession, group insurance and House Building Advance.

Why does ISRO charge ₹750 when the fee is ₹250?

Everyone pays ₹750 upfront as a processing fee; only ₹250 is the non-refundable application fee. Candidates who appear for the written test get money back — the full ₹750 for women, SC, ST, PwBD and ex-servicemen candidates, and ₹500 for everyone else. Skip the test and nothing is refunded.

Can I convert my CGPA into a percentage to meet the 65% requirement?

No. If your certificate shows only CGPA, that CGPA must itself be 6.84 or above — conversion is not permitted even when the university prescribes a formula. If both CGPA and percentage appear, at least one of them must meet ISRO's norm.

How are candidates shortlisted for the ISRO interview?

On written test performance, in a 1:5 ratio against vacancies with an aggregate minimum of 10 candidates. For reserved vacancies, distinct additional candidates are shortlisted at the same 1:5 ratio, without regard to reserved-category candidates already shortlisted under the UR list.

How is the ISRO interview marked?

Out of 100: technical or academic knowledge 40, general awareness in the area of specialisation 20, presentation and communication skill 20, comprehension 10, and academic achievements 10. The last block rewards institute type, your CGPA or percentage band, and an institute rank between 1 and 3.

How is the final ISRO merit list prepared?

Written test and interview carry 50% weightage each. Unreserved candidates need 50% in the written test, 50% in the interview and 60% aggregate; PwBD candidates against reserved posts need 40, 40 and 50%. Ties break on written test marks, then essential qualification marks, then date of birth with the older candidate higher.

How should I prepare for the ISRO written test?

Build depth in the core discipline syllabus first, because Part A carries 80 of the 100 marks and its −1/3 penalty rewards accuracy over volume. Then treat Part B as a separate exam — its own 50% cut-off has ended otherwise strong candidacies. Finish with timed full-length mocks in the 80+20 pattern so the two-hour split becomes automatic. For Computer Science candidates that means the ISRO Scientist/Engineer Test Series 2026 (CS & IT) for the mocks, and the IT Officer full course if you still need the subject teaching underneath them.

Can the same preparation work for ISRO, SBI SO and IBPS SO?

To a large extent, yes, for Computer Science and IT candidates. Data Structures, Algorithms, DBMS, Operating Systems, Computer Networks and Software Engineering form the technical core of ISRO's CS paper and of the IT Officer papers for SBI SO, IBPS SO and SEBI alike. The IT Officer course and test series is built on that shared core, so one round of preparation can be pointed at several notifications in the same year.

Where will I be posted after selection?

At any Centre or Unit of the Department of Space or ISRO, with liability to transfer to any such Centre or Unit at any time on a need basis. Only Indian nationals may apply, and the posts are described as temporary but likely to continue.

Who do I contact for clarifications?

Check the FAQs published on the ISRO website against this advertisement first. If a doubt remains, email rmticrb@isro.gov.in. Queries about information already available in the advertisement or FAQs, and frivolous queries, are not answered.

Preparation

175 posts, one two-hour paper standing in the way

Everything after the CBT is an interview you cannot reach without clearing both parts. That makes the written test the only stage worth optimising hard — and it is entirely learnable, because the pattern is fixed and published.

Core subject depth for Part A

Subject-wise coverage of the discipline syllabus with MCQ drills tuned to the −1/3 penalty, so you learn when to attempt and when to leave.

Reasoning practice for Part B

Numerical, logical, diagrammatic, abstract and deductive reasoning sets for the 20-mark section that carries its own cut-off.

Full-length mocks in the real pattern

80 plus 20 questions in a 90 plus 30 minute split, so exam day is a repeat of something you have already done.

Test series

ISRO Scientist/Engineer Test Series 2026 — Computer Science & IT

Built specifically for this notification. Full-length papers in the official structure so the clock, the split and the penalty are all familiar before you sit the real one.

  • 80 discipline MCQs in 90 minutes, −1/3 marking applied exactly as ISRO does
  • 20-mark aptitude section in 30 minutes, scored against its own 50% cut-off
  • Detailed solutions and section-wise analysis so weak topics surface early
View the test series
Full course

IT Officer Course & Test Series — SBI, IBPS, SEBI, PSUs

The teaching layer beneath the mocks. If your CS fundamentals need rebuilding rather than just testing, start here — and reuse the same preparation across every IT Officer notification this year.

  • DSA, DBMS, Operating Systems, Computer Networks, Software Engineering, Programming
  • Quantitative and logical reasoning for the aptitude sections these exams share
  • One syllabus pointed at SBI SO, IBPS SO, SEBI, ISRO and PSU technical papers
View the full course
Written and taught by

Piyush Wairale

Founder of PiyushAI Edtech, teaching technical recruitment and entrance preparation for engineering graduates targeting ISRO, PSU and GATE routes.

  • M.Tech, IIT Madras
  • Ex-instructor, IIT Madras BS Degree Programme
  • 44,000+ YouTube subscribers
  • Vidarbha Ratna Puraskar 2026

Courses and test series: ISRO CS & IT Test Series 2026 · IT Officer Course & Test Series