A science enthusiast has likely seen stars in the night sky and wondered how to become a scientist at ISRO. The Indian Space Research Organisation (ISRO) is a world-renowned organization in space exploration as well as known for its cost-effective and innovative missions, like Chandrayaan-3 and Mangalyaan. Becoming an ISRO scientist is a dream for many science enthusiasts and want to get the chance to contribute to India’s space legacy. Hence this article by SciAstra will unravel the complete guide on how to become an ISRO scientist, courses to choose, educational eligibility, exams, and the complete roadmap.
Why Join ISRO as Scientist?
While being a kid, having a preliminary thought of become a scientist in ISRO will come across to many science enthusiast minds. Apart from that, one should also know why to join an organization like ISRO as a scientist.
ISRO, the Indian Space Research Organization, is India’s national space agency, with its headquarters located in Bengaluru, Karnataka. Primarily, the organization focuses on the research and development sector of the Department of Space (DoS).
Did you Know?
India is the first Asian nation to reach Mars orbit and the fourth to land on the Moon. On the other hand, ISRO helped the nation in constructing satellites, launching rockets, and exploring other planets, and applications include fields like communication, weather forecasting, and disaster management.
Aspiring students can check out the few reasons for joining ISRO as a scientist from below:
- Being of Space Missions
As an ISRO scientist, you will have the chance to work on missions such as Chandrayaan, Mars Orbiter Mission, and Gaganyaan. You will also be part of launch vehicle engineering, satellite designs, and many other projects.
- World-Class Research & Development
ISRO is considered to have one of the most advanced research and development facilities in the world.
- Significant National Contribution
One will get the opportunity to help the nation in achieving technological independence, whether it is disaster management or agriculture remote-sensing satellites/communication satellites.
- Competitive Salary & Benefits
ISRO employees will be eligible for handsome salary scales, allowances, medical insurance, and pension schemes.
Stream/Degree Required to Become a Scientist in ISRO
When a student aspires to become an ISRO scientist, a strong academic background becomes the foundation stone. Thus, check out the step-by-step educational journey right from high school stream selection to UG/PG and further higher-level studies:
High School (Class 10th and 12th)
In order for ISRO preparation after 12, one must choose the following streams or subjects:
- Stream/Subjects: Students should opt for the science stream in their 11th class grade with either PCM or PCM with computer studies. This will focus on physics, chemistry, mathematics, and computer science in class 11 and 12. Furthermore, these subjects/stream selections are the prerequisites for engineering and science entrance exams.
- Grades/Marks: Aim for high marks to qualify for top colleges.
- Optional Subjects: Computer Science or Electronics can provide an edge.
Undergraduate Degree (BTech/BE)
After attaining the Class 12 degree, one of the best ways to join ISRO as a scientist is opting for an engineering degree, BTech.
- Eligibility: One should be completing their Bachelor’s degree in Engineering or Technology with at least 65% marks or a CGPA of 6.84/10 for general category candidates.
- Preferred Branches:
Here are the list of preferred branches that one can opt for while pursuing their BTech or BE degree:
- Aerospace Engineering
- Electronics and Communication Engineering
- Mechanical Engineering
- Electrical Engineering
- Computer Science Engineering
- Physics or Mathematics
- Top Institutes: A candidate should always prefer to study in one of the finest institutions in technologies. Many institutes such as Indian Institutes of Technology (IITs), National Institutes of Technology (NITs), and Indian Institute of Space Science and Technology (IIST) are ideal, as they are known for their rigorous programmes and ISRO campus placements.
Postgraduate Degree (M.Tech/M.Sc/Ph.D.)
- MTech/MSc: After completing their bachelor’s degree in BSc/Btech/BE one can go for Master’s degree in fields like Space Science, Astrophysics, or Aerospace Engineering. By choosing so, it will enhance the candidate’s education profile.
- PhD: One can choose higher studies in research roles like areas of space technology or material science.
- Eligibility for MTech: A valid GATE score is often required.
- Duration: M.Tech/M.Sc (2 years), Ph.D. (3-5 years).
Note: In addition to the above, direct recruitment to become an ISRO scientist after B.Tech is also possible, but postgraduate degrees improve prospects for specialized roles.
Eligibility Criteria to Become ISRO Scientist
Here is the list of elements, or basic eligibility requirements, and that are required for a student to become an ISRO scientist:
| Qualification | Educational Requirement | Minimum Marks/CGPA | Age Limit (General) |
| Engineering (B.Tech/B.E.) | B.E./B.Tech in Mechanical, Electrical, Electronics, Computer Science, Civil, Aerospace, etc. | 65% aggregate or 6.84/10 CGPA | Up to 28 years (relaxation for OBC/SC/ST) |
| Science Stream (after B.Sc.) | M.Sc. / Integrated M.Sc. in Physics, Applied Physics, Space Science, Astronomy, Astrophysics, Mathematics | 65% aggregate | Usually 28–30 years |
| M.Tech / M.E. Holders | M.E./M.Tech in relevant engineering/technology specialization | 65% in B.Tech and M.Tech | Up to 30 years |
| Ph.D. Candidates | Ph.D. in Physics, Astrophysics, Space Science, Atmospheric Science, Planetary Science, or related fields | Good academic record (usually 65%+ in prior degrees) | Varies (generally up to 35 years for post-doc positions) |
| Through IIST (Indian Institute of Space Science and Technology) | B.Tech / Dual Degree from IIST | CGPA ≥ 7.5/10 | As per ISRO norms |
How to Become ISRO Scientist: Recruitment Process
To become an ISRO scientist, there are multiple chances through which they can choose depending upon the type of degree they have chosen in their graduation/postgraduation levels. For instance, ISRO Centralized Recruitment Board (ICRB) exam and GATE scores are of the most favored channels. However, there are other ways also.
Check out the ISRO scientist recruitment process from here:
| Entry Channel / Mode | Eligible Qualification | Selection Process | Position Offered |
| 1. ISRO Centralized Recruitment Board (ICRB) Exam | B.E./B.Tech (Engineering streams) | 1. Apply online through ISRO careers portal
2. Written Test (technical subjects) 3. Interview of shortlisted candidates |
Scientist/Engineer – SC |
| 2. Through GATE Score | M.Tech/M.E. or B.Tech (with valid GATE) | 1. Shortlisting based on GATE score (for certain streams)
2. Direct interview (no written test) |
Scientist/Engineer – SC or SD |
| 3. Campus Placement via IIST | B.Tech/Dual Degree from IIST (Indian Institute of Space Science and Technology) | 1. CGPA ≥ 7.5/10
2. No separate exam, direct selection during final year |
Scientist/Engineer – SC |
| 4. JRF/SRF → Ph.D. → Scientist | M.Sc. (Physics/Space Science) or Integrated M.Sc. | 1. Apply for Junior Research Fellow (JRF) posts at ISRO centres
2. Interview & research work (2–5 years) 3. Completion of Ph.D. within ISRO4. Absorption as Scientist |
Scientist (Research roles) |
| 5. Post-Doctoral Fellowships (PDF) | Ph.D. in Physics, Astrophysics, Atmospheric Science, Planetary Science | 1. Apply for PDF at ISRO research centres (PRL, SAC, VSSC, etc.)
2. Screening & Interview 3. After fellowship, internal absorption or direct recruitment |
Scientist/Engineer – SD |
| 6. Lateral Entry / Experienced Professionals | Experienced researchers/engineers in specialized fields | Shortlisting based on experience, publications & interview | Scientist/Engineer – SD/SE |
How to Become a Scientist in ISRO: BTech vs BSc
One of the best ways to join ISRO as a scientist is by choosing a BTech course as their graduation degree. However, due to many reasons, one may not be able to pursue a BTech and choose a BSc course but can also aspire to become an ISRO scientist. So, check out the ways to become an ISRO scientist via BTech and BSc courses through the following section:
| Aspect | B.Tech Route | B.Sc. Route |
| Eligibility to Apply for ISRO Scientist/Engineer ‘SC’ | Directly eligible after B.Tech (in Aerospace, Mechanical, Electronics, CS, Electrical, etc.) through ISRO Centralised Recruitment Board (ICRB) exam. | Not directly eligible after B.Sc. (3-year degree). |
| Entry Level Exam | ISRO ICRB written exam (similar to GATE level) followed by interview. | No exam directly after B.Sc. Need higher qualifications. |
| Typical Path | 1. B.Tech (Engineering stream)2. Appear for ISRO ICRB exam3. Clear written + interview4. Join as Scientist/Engineer ‘SC’. | 1. B.Sc. (Physics/Maths)2. Pursue M.Sc. (Physics/Space Science) OR Integrated M.Sc.3. Enter ISRO as JRF → Ph.D. → Scientist OR Do M.Tech and then appear for ISRO ICRB. |
| Alternative Route | Via GATE + M.Tech (if not selected after B.Tech). | After M.Sc. → Join ISRO JRF/SRF → Do Ph.D. inside ISRO → Get absorbed as Scientist. |
| Minimum Education for Scientist Post | B.Tech/B.E. (65% and above) | M.Tech/Ph.D. required (B.Sc. alone is not enough). |
| Time to Enter ISRO | Directly after graduation (approx. 4 years) | Minimum 5–8 years (B.Sc. + M.Sc. + Ph.D. or M.Tech). |
| Focus Areas | Engineering & technology roles – Satellite design, launch vehicles, robotics, electronics. | Research-focused roles – Physics, astronomy, planetary sciences, atmospheric science. |
| Advantage | Fastest route to Scientist/Engineer position. | More suited for pure research roles but longer and more competitive. |
How to Apply for ISRO Scientist Positions
Follow these steps to apply for ISRO jobs:
- First of all, regularly visit the official website of ISRO, which is www.isro.gov.in
- Navigate to the “Careers” section for the latest job vacancies and notifications.
- If one found the relevant job post, can register and complete the online application form.
- Uploading the documents (e.g., marksheets, ID proof) is must.
- Pay the application fee, if applicable.
- Save the application form for reference.
Therefore, it is highly advised for the candidates to regularly check ISRO’s website for updates on exam dates, admit cards, and results.
Skills and Qualities Required for ISRO Scientists
Students aspiring to become an ISRO scientist need to understand that attaining certain required skills for the job is the prerequisite for having an amazing career. Similarly, a blend of technical and soft skills is a must that they need to incorporate in themselves. Here, check out the skills required from here.
- Technical Skills:
- Programming (Python, MATLAB).
- Knowledge of satellite systems, rocket science, or space technology.
- Strong grasp of Mathematics and Physics.
- Soft Skills:
- Analytical thinking and problem-solving.
- Teamwork and communication.
- Attention to detail and resilience under pressure.
- Research Skills: Ability to conduct experiments and analyze data.
Specialized Roles at ISRO
Hence, ISRO is known for offering diverse roles for scientists as per the educational qualifications. Now, check out the list of specialized roles from here:
- Astronomer: Study celestial bodies (requires an astrophysics background).
- Astrophysicist: Research space phenomena.
- Geophysicist: Analyze Earth’s properties using satellite data.
- Junior Research Fellow (JRF): Entry-level research for M.Sc/PhD holders.
Conclusion:
Becoming a scientist at ISRO is a dream of many people among us. And, to become an ISRO scientist with an M.Sc or Ph.D. involves a keen interest in advanced education, excelling in exams like NET or GATE, and building a strong research profile. Hence, in order to join ISRO’s mission to advance the space exploration, one can target roles like JRF or Scientist/Engineer. As a result, it is highly advised to start early by focusing on their academics, publishing research, and staying updated on ISRO’s career opportunities.
