ISRO Scientist Engineer Exam Date 2026 Revised: CBT Postponed to 29 October — Latest Update
CBT postponed: ISRO’s official ICRB recruitment page says the Computer Based Test (CBT) for Scientist/Engineer ‘SC’ (Advt No. ISRO:ICRB:03(EMC):2026) is postponed from 19 October to 29 October 2026 (Thursday). No reason and no admit card date have been given — call letters go only to your registered e-mail ID, so check your inbox and spam folder. Download the ISRO Scientist Engineer CBT Postponement Notice (29 Oct 2026) | Check Exam Date on the ISRO Application Portal
ISRO Scientist/Engineer Recruitment 2026: 175 Posts in Level 10 Pay Matrix
The ISRO Centralised Recruitment Board has notified a fresh advertisement for Scientist/Engineer ‘SC’ across its Centres and the Physical Research Laboratory. Add up the six rows in the notification and you get 175 posts in all. Selected candidates join in Level 10 of the Pay Matrix with a minimum basic pay of ₹56,100 a month — a Group ‘A’ post among engineering government jobs open to B.Tech graduates.
The online window ran from 27 August 2026 to 16 September 2026 (11.55 PM) and is now closed. Eligibility was a BE or B.Tech in Electronics & Communication, Mechanical or Computer Science with at least 65% marks or CGPA 6.84, and a maximum age of 28 years on 16 September 2026. The Written Test / CBT is now on 29 October 2026. This guide from GovtJobsAlert.in covers the vacancies, the two-part written test, the ₹750 refund rule, and the conditions that quietly end candidatures.
What are the Key Highlights of ISRO Scientist/Engineer Recruitment 2026?
ISRO’s Centralised Recruitment Board is hiring for the Department of Space under advertisement ISRO:ICRB:03(EMC):2026 dated 27 August 2026. Posts at constituent ISRO Centres are Group ‘A’ Gazetted, while the three posts at the Physical Research Laboratory, an autonomous body under DOS, are Group ‘A’ Non-Gazetted.
| Detail | Information |
|---|---|
| Organisation | ISRO Centralised Recruitment Board (ICRB) |
| Advertisement Number | ISRO:ICRB:03(EMC):2026 |
| Post | Scientist/Engineer ‘SC’ |
| Total Vacancies | 175 |
| Pay Level | Level 10, minimum basic ₹56,100 per month |
| Application Window | 27 August 2026 to 16 September 2026 (closed) |
| Written Test / CBT Date | 29 October 2026 (Thursday), postponed from 19 October |
| Job Location | Any ISRO Centre or Unit across India |
| Selection | Written Test or CBT, then Interview |
How Many Vacancies Are There in ISRO Scientist/Engineer Recruitment 2026?
The advertisement does not print a grand total anywhere. The figure of 175 is the sum of the six notified rows below, so check the row for your own discipline.
| Post (Discipline) | Unit | Vacancies |
|---|---|---|
| Scientist/Engineer ‘SC’ (Electronics) | ISRO Centres | 99 |
| Scientist/Engineer ‘SC’ (Mechanical) | ISRO Centres | 52 |
| Scientist/Engineer ‘SC’ (Computer Science) | ISRO Centres | 21 |
| Scientist/Engineer ‘SC’ (Electronics) | PRL | 1 |
| Scientist/Engineer ‘SC’ (Mechanical) | PRL | 1 |
| Scientist/Engineer ‘SC’ (Computer Science) | PRL | 1 |
| Total across the six notified posts | — | 175 |
There is no UR, OBC, SC, ST or EWS community-wise split anywhere in this notification. The only category-wise table ISRO has printed is for Persons with Benchmark Disabilities, and those numbers sit inside the totals above rather than on top of them.
| Post at ISRO Centres | PwBD-identified Vacancies (already counted above) |
|---|---|
| Electronics | A 1 backlog, B 16 backlog, C 3 backlog, D 0, E 1 backlog |
| Mechanical | A 3 backlog, B 9 backlog, C 4 (3 backlog), D 0, E 1 backlog |
| Computer Science | A 4 (3 backlog), B 2 (1 backlog), C 1, D 1 backlog, E 0 |
| All three PRL posts | Nil in every category |
| Notation or Category | What it means |
|---|---|
| Backlog | A vacancy carried forward, marked with an asterisk in the advertisement |
| A figure like 4 (3 backlog) | Four vacancies, of which three are backlog |
| Category A | Blindness and low vision |
| Category B | Deaf and hard of hearing |
| Category C | Locomotor disability, including cerebral palsy, dwarfism and acid attack victims |
| Category D | Autism, intellectual disability, specific learning disability and mental illness |
| Category E | Multiple disabilities from among A to D, including deaf-blindness |
| Interchange rule | Backlog PwBD vacancies may be interchanged among categories A to E |
| If nobody suitable is found | The post will be filled by a candidate who is not a person with disability |
| Minimum disability | 40% relevant benchmark disability is required for reservation |
| Certificate | Prescribed format, showing the percentage of disability, produced at the interview |
Because of that interchange rule, the advertisement expressly encouraged PwBD candidates of all five categories, A to E, to apply.
What is the Eligibility for ISRO Scientist/Engineer ‘SC’ Recruitment 2026?
Educational Qualification
| Post | Requirement |
|---|---|
| Scientist/Engineer ‘SC’ (Electronics) | BE or B.Tech or equivalent in Electronics & Communication Engineering |
| Scientist/Engineer ‘SC’ (Mechanical) | BE or B.Tech or equivalent in Mechanical Engineering |
| Scientist/Engineer ‘SC’ (Computer Science) | BE or B.Tech or equivalent in Computer Science Engineering |
| All six posts | Aggregate minimum 65% marks, or CGPA 6.84 out of 10 |
Two further rules apply alongside the 65% bar. Conversion of CGPA into a percentage is not permitted to decide eligibility, and your graduation must have been completed within the stipulated duration of the course. Originals are checked at the interview, so read the table below against your own marksheet.
| Rule in the notification | What it means for you |
|---|---|
| CGPA cannot be converted | If your certificate shows only a CGPA, that CGPA must itself be 6.84 or more — whatever conversion formula your university prescribes |
| Both CGPA and percentage printed | At least one of the two must meet the ISRO norm |
| Course duration | Graduation completed beyond the duration the university prescribes does not count |
| Dual degree with separate figures | The graduation-level CGPA or percentage is reckoned |
| Dual degree with one common figure | That final figure for the whole course is reckoned |
| Dual degree with no figure prescribed | The cumulative figure on the final consolidated marksheet is used |
| Nationality | Only Indian nationals need apply |
Allied disciplines accepted under each of the three branches are listed in the FAQs published on the ISRO website, so computer and IT graduates holding a closely-named degree should read those before ruling themselves out.
Age Limit
| Category | Maximum Age as on 16 September 2026 |
|---|---|
| All candidates | 28 years |
| Serving Central Government civilian employees | Relaxation as per Government of India orders |
| Ex-servicemen and PwBD candidates | Relaxation as per Government of India orders |
🎂 Not sure if you meet the age criteria? Use our free Age Calculator for Government Exams to find your exact age on the cut-off date and instantly check your eligibility — including any age relaxation you qualify for. →
The notification prints no minimum age, and no numeric relaxation figures either — it only says relaxation applies as per Government of India orders for those three groups. Age is reckoned as on 16 September 2026.
What is the Salary for ISRO Scientist/Engineer ‘SC’ 2026?
| Component | Detail |
|---|---|
| Pay Level | Level 10 of the Pay Matrix |
| Minimum Basic Pay | ₹56,100 per month |
| Allowances | Dearness Allowance, House Rent Allowance, Transport Allowance |
| Pension | New Pension Scheme |
| Medical | Facilities for self and dependents |
| Canteen and housing | Subsidised canteen, limited quarters facility in lieu of HRA |
| Other benefits | Leave Travel Concession, Group Insurance, House Building Advance |
Two honest notes. The posts are described as temporary but likely to continue, and the vacancy count is provisional — ISRO may increase or decrease it, and reserves absolute rights not to fill the posts at all without giving any reason.
What is the Selection Process and Exam Pattern for ISRO Scientist/Engineer 2026?
| Stage | Detail |
|---|---|
| 1. Written Test or CBT | 100 marks, in two parts |
| 2. Shortlisting | Ratio of 1:5, with a minimum of 10 candidates |
| 3. Interview | 100 marks |
| Part | Questions and Marks | Duration |
|---|---|---|
| Part A — area or discipline specific | 80 MCQs, 80 marks | 90 minutes |
| Part B — aptitude and ability | Maximum 15 MCQs, 20 marks | 30 minutes |
| Marking Rule | Detail |
|---|---|
| Part A — correct answer | Plus 1 mark |
| Part A — unattempted | Zero |
| Part A — wrong answer | Minus one-third of a mark |
| Part B | Wrong answers here cost you nothing — the one-third deduction applies only to Part A |
| Part B topics | Numerical, logical, diagrammatic, abstract and deductive reasoning |
Part B tests reasoning, not your branch, so prepare for it separately before the 29 October CBT. Attempt every Part B question. Our exam syllabus guides are a sensible place to start on the reasoning half.
| Criterion | Unreserved | PwBD (where posts are reserved) |
|---|---|---|
| Written Test — each part | 50% | 40% |
| Interview | 50% | 40% |
| Aggregate | 60% | 50% |
| Interview Component | Marks |
|---|---|
| Technical (academic) knowledge | 40 |
| General awareness in your specialisation | 20 |
| Presentation and communication skill | 20 |
| Comprehension | 10 |
| Academic achievements | 10 |
| Academic Achievement (within those 10 marks) | Marks |
|---|---|
| Studied at an IIT, IISc, IIST, NIT or NIRF top-20 institute | 3 |
| CGPA above 9, or percentage above 85% | 4 |
| CGPA between 7.5 and 9, or percentage 71% to 85% | 2 |
| Rank 1 to 3 awarded by your institute | 3 |
| Anything else under these three heads | Nil |
| Final Panel Rule | Detail |
|---|---|
| Weightage | 50% written test marks, 50% interview marks |
| First tie-break | Marks scored in the Written Test or CBT |
| Second tie-break | Marks scored in the essential qualification |
| Third tie-break | Date of birth, with the older candidate placed higher |
| ISRO’s reserved right | It may change the qualifying criteria for interview and final selection for administrative reasons |
Where Will the ISRO Scientist/Engineer 2026 Written Test (CBT) Be Held?
| Detail | Written Test or CBT Venues |
|---|---|
| Number of cities | Thirty Seven, as listed in the advertisement |
| Cities A to G | Agartala, Ahmedabad, Bengaluru, Bhopal, Bhubaneshwar, Chandigarh or Mohali, Chennai, Dehradun, Delhi, Ernakulum, Gorakhpur, Gurugram, Guwahati |
| Cities H to P | Hyderabad, Indore, Jaipur, Jammu, Jodhpur, Kanpur, Kavaratti, Kolkata, Lucknow, Mangaluru, Mumbai, Mysore, Nagpur, Patna, Port Blair, Pune |
| Cities R to V | Raipur, Ranchi, Shilong, Tiruchirapalli, Thiruvananthapuram, Varanasi, Vijayawada, Vishakhapatnam |
ICRB reserves the right to cancel or change a venue and re-allot candidates to any other test centre. Hall tickets and call letters for both the written test and the interview are sent by e-mail only. Check the e-mail ID you registered, including the spam folder, and remember that ISRO will not be held responsible if an intimation sent that way never reaches you.
How to Apply Online for ISRO Scientist/Engineer Recruitment 2026? (Application Now Closed)
The portal closed on 16 September 2026. The steps are kept for reference.
| Step | Action |
|---|---|
| 1 | Candidates opened the ISRO online registration page (link in Essential Links) |
| 2 | They registered with a correct e-mail ID and had to preserve the registration number |
| 3 | They filled every field and checked it before submitting |
| 4 | Photograph and signature were uploaded in .jpg or .jpeg format |
| 5 | ₹750 was paid through the Bharatkosh gateway link shown on submission |
| 6 | Bank name, branch, account holder name, account number and IFSC were entered for the refund |
| Upload or Payment | Specification |
|---|---|
| Photograph | Recent colour passport-size, 4.5cm by 3.5cm, 100 kb to 200 kb, light-coloured and preferably white background, no cap, hat or dark glasses |
| Signature | 80 kb to 150 kb, signed on white paper in black ink, not in capital letters |
| Category certificate | SC, ST, disability or ex-servicemen certificate, needed only for the full refund |
| Payment modes allowed | Internet banking, UPI, domestic debit card |
| Payment modes not allowed | Cash, cheque, draft, money order and IPO |
| Service charges | Borne by the applicant |
| Failed or pending transaction | ISRO is not responsible for it |
If those uploads were missing or unclear, the application will be rejected — the advertisement says so in plain words.
When is the ISRO Scientist Engineer Exam Date 2026? Important Dates and CBT Schedule
| Event | Date |
|---|---|
| Advertisement date | 27 August 2026 |
| Online application opens | 27 August 2026 |
| Last date to apply | 16 September 2026 (11.55 PM), closed |
| Last date for fee payment | 16 September 2026 |
| Age reckoned as on | 16 September 2026 |
| Written Test / CBT | 29 October 2026 (Thursday), postponed from 19 October 2026 (ISRO ICRB recruitment page) |
| Call letter for CBT | By e-mail only; release date not announced |
| Interview date | Not announced yet |
| Answer keys published | Within three working days of the written test |
| Objection window on answer keys | Within 5 days of answer key publication |
The advertisement itself printed no test date. ISRO’s ICRB recruitment page has since postponed the CBT from 19 October to 29 October 2026. The interview date is still not announced, so keep our exam calendar handy. Objections are accepted only through the link provided after the test. Anything received thereafter, or through any other mode, will not be considered under any circumstances.
What is the ISRO Scientist/Engineer Application Fee 2026 and ₹750 Refund Rule?
The real application fee is ₹250 and it is non-refundable. But at the time of applying, every candidate paid ₹750 as a processing fee. What differs between candidates is how much of that ₹750 comes back afterwards.
| Category | Pay at Application | Refund if You Appear |
|---|---|---|
| Women, SC, ST, PwBD and Ex-servicemen | ₹750 | ₹750, in full |
| All other candidates | ₹750 | ₹500, after the ₹250 fee |
The refund comes only if you actually sit for the 29 October written test. Miss it and nothing comes back, whichever category you belong to. The money is sent to the bank account you typed into your form, so one wrong digit in the account number or IFSC and the refund goes astray — ISRO will not be held responsible for that. And if you submitted more than one application for the same post, only the one against which the fee was received within the last date will be considered.
What Can Cancel Your ISRO Scientist/Engineer 2026 Candidature?
Every line below is printed in the advertisement.
| Condition | What it means for you |
|---|---|
| Incomplete applications | Applications not in conformity with the advertisement, and incomplete ones, will not be entertained |
| Missing uploads | Clear scanned copies of the required documents had to be uploaded, failing which the application will be rejected |
| Procedural deviation | Any deviation from the notified procedure results in cancellation of candidature, and no representation will be considered |
| No Objection Certificate | Government, PSU and autonomous body employees who fail to submit the NOC in original at the interview shall not be permitted to appear, and no TA will be paid |
| Employer’s permission | You had to apply only with the prior permission of your employer and under intimation to them |
| False information | If anything furnished online is found false you will not be allowed for the interview and no TA is paid; a false NOC claim noticed at any stage results in disqualification of candidature or employment |
| Canvassing | Canvassing in any form will be a disqualification |
| Travelling allowance | No TA at all for the written test; interview TA is second-class train fare from the city shown in your application, and a change of city will not be entertained |
| Original documents | All originals proving the details you filled online must be produced at the interview |
| Language of record | If the Hindi and English versions differ, the English version is final |
| Posting and transfer | You are liable to be posted at any ISRO or DOS Centre or Unit, and transferred to any other at any time on need basis |
Essential Links — ISRO Scientist/Engineer Exam Date 2026
- Check Exam Date for ISRO Scientist Engineer Exam Date 2026 Revised
- Official Notification Page for ISRO Scientist Engineer Exam Date 2026 Revised
- Visit ISRO Scientist Engineer Official Website
- ISRO Scientist Engineer CBT Postponement Notice (29 Oct 2026)
- Download Original Advertisement PDF – Advt No. ISRO:ICRB:03(EMC):2026
- Join WhatsApp Channel for Government Jobs
- Join Telegram Channel for Government Jobs
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If you applied, your next date is 29 October 2026. Revise your own branch for Part A, practise reasoning for Part B, and watch the e-mail ID you registered for the call letter, because ISRO sends it no other way. Sitting the test also decides your fee refund. Keep visiting GovtJobsAlert.in for more central government job updates.