Core Educational Qualifications
The fundamental requirement for aspiring ISRO Scientist/Engineers is a strong academic background. Based on recent recruitment notifications, candidates must possess a B.E., B.Tech, or an equivalent qualification in a relevant engineering discipline.
A consistent benchmark set by ISRO is a minimum aggregate of 65% marks or a CGPA of 6.84 on a 10-point scale. It is crucial that this degree is obtained from a recognized university or institution. ISRO is specific that the graduation should be completed within the standard duration prescribed by the university. For candidates with dual or integrated degrees, at least one of the criteria (CGPA or percentage) must meet ISRO's norm.
In-Demand Engineering Disciplines
ISRO recruits for a variety of specialised roles, and the required engineering disciplines reflect this. The most frequently sought-after branches are Electronics and Communication Engineering, Mechanical Engineering, and Computer Science Engineering. However, recruitment drives often include vacancies for other critical fields such as Civil Engineering, Electrical Engineering, Refrigeration & Air Conditioning, and even Architecture. Aspiring candidates should keep a close watch on the official notification, as the specific disciplines in demand can vary with each recruitment cycle based on the organisation's project needs. Some notifications also specify allied disciplines that are considered acceptable for each primary branch.
Age Limit and Relaxation Rules
Age is a key eligibility factor for these coveted government posts. For the Scientist/Engineer 'SC' position, the general upper age limit is typically set at 28 years as of the closing date of the application. However, ISRO adheres to government regulations regarding age relaxation for reserved categories. Candidates belonging to Other Backward Classes (OBC) are usually given a relaxation of three years (up to 31 years), while Scheduled Castes (SC) and Scheduled Tribes (ST) candidates receive a five-year relaxation (up to 33 years). Persons with Benchmark Disabilities (PwBD) and ex-servicemen are also eligible for age relaxation as per Government of India orders.
The Two-Pronged Selection Process
Securing a position at ISRO involves a rigorous two-stage selection process. Historically, this involved a written test conducted by the ISRO Centralised Recruitment Board (ICRB), followed by a personal interview. However, recent recruitment trends for 2026 show a significant shift towards using Graduate Aptitude Test in Engineering (GATE) scores for shortlisting. According to recent notifications, candidates with valid GATE 2025 or GATE 2026 scores will be shortlisted for an interview, often in a 1:5 or 1:7 ratio. The final selection is then based on a composite score, with 50% weightage given to the GATE score and 50% to the interview performance. This interview assesses technical knowledge, communication skills, and academic achievements.
Key Information for Applicants
Candidates who are in their final year of engineering may also be eligible to apply, provided they can produce their final degree certificate by a specified date mentioned in the notification. The application process is conducted exclusively online through the official ISRO careers portal. Applicants must register with a valid email ID and mobile number, which are used for all future correspondence. While there is an application fee for some categories, female candidates, as well as SC/ST, PwBD, and ex-servicemen candidates, are often exempted from payment. Those currently employed in government or public sector roles must produce a No Objection Certificate (NOC) at the time of the interview.
