Two Paths: GATE Score vs. Written Test
Historically, ISRO has employed two main channels for recruiting Scientist/Engineer 'SC' posts. The most common method in recent years, and the one active for the 2026 intake, is based on a candidate's GATE (Graduate Aptitude Test in Engineering) score.
However, ISRO also conducts its own written examination through the ISRO Centralised Recruitment Board (ICRB) for certain recruitment drives. For the current 2026 recruitment cycle for 93 posts, selection is based on valid GATE 2025 or GATE 2026 scores, followed by an interview. There is no separate written test for this specific intake. This streamlines the process, allowing ISRO to shortlist candidates who have already proven their fundamental engineering knowledge through the national-level GATE exam.
Meeting the Eligibility Criteria
Before applying, candidates must meet specific eligibility requirements. Academically, this means holding a B.E./B.Tech degree in a relevant discipline—such as Electronics, Mechanical, or Computer Science—with a minimum aggregate of 65% marks or a CGPA of 6.84 out of 10. The age limit is typically 28 years, with relaxations for candidates from SC/ST and OBC categories as per government norms. Critically, applicants for the current drive must have a valid GATE 2025 or 2026 score in the paper corresponding to their engineering discipline. For example, a Mechanical Engineering graduate must have a valid GATE score in the ME paper.
The Application Process Explained
All applications must be submitted online through the official ISRO website, isro.gov.in. The application window for the 2026 recruitment opened on July 28, 2026, and closes on August 17, 2026. During the online registration, applicants provide personal details, educational qualifications, and their valid GATE score. It's crucial to provide a valid email address and preserve the registration number generated after submission for all future correspondence. Candidates registered with the National Career Service (NCS) portal who meet the criteria can also apply through the same process.
From Shortlist to Interview Room
Once the application window closes, ISRO shortlists candidates based on their GATE scores. The organisation typically calls candidates for the interview in a 1:7 ratio for the number of vacancies available. The interview is a purely technical assessment designed to gauge a candidate's practical knowledge, problem-solving skills, and fundamental understanding of their core subjects. The panel usually consists of senior ISRO scientists. The final selection is not based on the interview alone; a merit list is prepared by giving 50% weightage to the candidate's GATE score and 50% to their performance in the interview. To be considered for the final merit list, unreserved candidates must score a minimum of 60% in aggregate.
After Selection: What Comes Next
Candidates who make it onto the final merit list undergo document verification and a medical examination to confirm their suitability. Upon clearing these final checks, they are appointed as a Scientist/Engineer 'SC' in Level 10 of the pay matrix, with a basic pay of ₹56,100 per month plus allowances like DA and HRA. These newly recruited engineers are then posted at one of ISRO's many centres across the country, such as those in Bengaluru, Thiruvananthapuram, or Ahmedabad, where they begin their journey contributing to India's space program.
