The Foundation: Educational Qualifications
The primary requirement for the Scientist/Engineer 'SC' position is a Bachelor's degree in Engineering or Technology (B.E./B.Tech) or an equivalent qualification. The specific engineering discipline required depends on the vacancy. Common streams include
Electronics & Communication, Mechanical, Computer Science, Civil, and Electrical Engineering. Some recruitment cycles may also have openings for specialized fields like Architecture or Refrigeration & Air-Conditioning. It's crucial for applicants to ensure their specific degree discipline matches the one mentioned in the recruitment notification, as allied or related degrees may not always be considered eligible.
Academic Performance Matters
Strong academic performance is non-negotiable. Candidates must have secured an aggregate minimum of 65% marks across all semesters or a Cumulative Grade Point Average (CGPA) of 6.84 on a 10-point scale. ISRO is strict about this rule; conversion of CGPA to percentage is not permitted to determine eligibility. If a university provides only a CGPA, it must meet the 6.84 threshold. This requirement applies to most entry-level scientist positions filled through the ISRO Centralised Recruitment Board (ICRB).
Age Limit and Category Relaxations
For most Scientist/Engineer 'SC' posts, the maximum age limit for general category candidates is 28 years as of the closing date of the application. However, there are provisions for age relaxation for candidates from reserved categories. Typically, there is a relaxation of up to five years for Scheduled Castes (SC) and Scheduled Tribes (ST) candidates, and three years for Other Backward Classes (OBC) candidates, for posts reserved for them. This brings the upper age limit to 33 years for SC/ST and 31 years for OBC candidates in such cases.
The Selection Gauntlet: ICRB Exam and GATE
Eligibility extends beyond just degrees and marks. The selection process itself is a major hurdle. Traditionally, ISRO conducts its own written test through the ICRB, followed by a rigorous personal interview. The written test assesses core knowledge in the specific engineering discipline. In recent recruitment cycles, ISRO has also started using valid GATE (Graduate Aptitude Test in Engineering) scores for shortlisting candidates for interviews, sometimes forgoing a separate written test. For these recruitments, the final selection may be based on a 50-50 weightage given to the GATE score and the interview performance. Candidates must be Indian citizens to apply for any position.
Alternative Paths and Higher Qualifications
While the B.E./B.Tech route is the most common, there are other pathways. A direct route for undergraduates is through the Indian Institute of Space Science and Technology (IIST). Students who complete their B.Tech from IIST with a high CGPA (often 7.5 or above) may be directly absorbed into ISRO, subject to vacancies. Additionally, ISRO recruits candidates with postgraduate qualifications (M.E./M.Tech) and doctorates (Ph.D.) for more specialized, senior roles like Scientist/Engineer 'SD'. For these positions, the eligibility criteria, including age limits and required experience, are different and typically involve a direct interview based on their research and academic profile.














