ISRO Recruitment Eligibility — Age, Qualification & Reservation

ISRO Recruitment Eligibility — this page summarises the evergreen eligibility framework for the ISRO Recruitment examination conducted by Indian Space Research Organisation (ISRO). The cycle-specific minimum age, maximum age, age relaxation table and educational qualification cut-off date for any particular cycle are the ones printed in the official ISRO Recruitment notification PDF on isro.gov.in; always confirm exact age relaxation, qualification recognition and post-wise reservation against the official document.

Nationality and citizenship

ISRO Recruitment is open to Indian citizens. Persons of Indian origin who have migrated from certain notified countries with the intention of permanently settling in India may also be considered, subject to a certificate of eligibility from the Government of India. The exact wording of the nationality clause is the one in the official notification.

Educational qualification

ISRO recruitment requires the prescribed engineering / diploma / ITI qualification in the relevant discipline with the minimum percentage / CGPA prescribed in the notification, plus the age limit on the cut-off date of the cycle. Indian nationality is required.

The minimum educational qualification for ISRO Recruitment depends on the specific post. As a broad indication, ISRO recruitment cycles include posts that range from Class 10 plus ITI for trade-related cadres, Class 12 for undergraduate-level posts and a recognised graduate degree (from a UGC-recognised university or an equivalent institution recognised by the Government of India) for officer-level cadres. The recognising authority of the certifying body and the cut-off date for qualification are non-negotiable — check the eligibility annexure of the official notification.

Age limit guidance

Age limits for ISRO Recruitment are post-specific and are restated in every cycle. The general rule is that the candidate must satisfy both the minimum and maximum age conditions on the cut-off date specified in the official notification (typically the closing date of online registration, but read the notification clause carefully). Check the official notification for exact age relaxation, post-wise upper-age limit and the rules applicable to candidates from notified categories.

Age relaxation framework

Age relaxation for ISRO Recruitment follows the standard Government of India framework, restated in every notification:

• OBC (non-creamy layer): standard relaxation in years, subject to the candidate satisfying the non-creamy-layer income criterion.
• Scheduled Caste / Scheduled Tribe: standard relaxation in years above the upper age limit.
• Persons with Benchmark Disabilities (PwBD): relaxation as per the disability category and post category, cumulative with category-based relaxation where applicable.
• Ex-Servicemen: relaxation as per the service rendered, computed as per the formula in the notification.
• Departmental candidates and J&K domicile candidates: additional relaxations under the relevant Government orders.

The exact number of years, the eligible categories and the documents required to claim each relaxation are spelled out in the eligibility annexure of the official notification. Do not claim a relaxation without the matching certificate in the prescribed format.

Physical and medical standards

Where physical standards are prescribed for the post (for example, defence services, paramilitary cadres and certain ISRO field posts), candidates must satisfy the height, chest, weight and vision standards listed in the official notification on the date of physical measurement. Candidates with PwBD entitlements should refer to the special standards laid out in the notification. Pre-employment medical examination is normally a prerequisite to joining and follows the prescribed medical standards for the cadre.

Number of attempts

Where ISRO Recruitment prescribes a maximum number of attempts (for example, in some all-India examinations and defence services exams), the rule and the categories eligible for additional attempts are spelled out in the official notification. Always count an "attempt" as defined in the notification — appearing for at least one paper in a stage is typically counted as one attempt, even if the candidate did not appear for subsequent stages.

Reservation and category certificates

• SC / ST certificate from a competent revenue authority in the Government of India prescribed format.
• OBC (non-creamy layer) certificate issued not earlier than the date specified in the notification, in the Central Government format.
• EWS certificate, where reservation is applicable, in the format prescribed by the Department of Personnel and Training (DoPT).
• PwBD certificate from a notified medical authority in the prescribed format.
• Ex-Servicemen discharge / service certificate, where applicable.

Certificates must be valid on the cut-off date and at the time of document verification. An old certificate or one not in the prescribed format is treated as no certificate at the verification stage.

Common eligibility mistakes

• Claiming an OBC reservation without a valid non-creamy-layer certificate of the current financial year.
• Filling the education details with a degree from an institution whose recognition has lapsed or is under dispute on the cut-off date.
• Misreading the cut-off date for age calculation — confusing date of birth with the form-submission date.
• Claiming PwBD or Ex-Servicemen relaxation without the matching certificate in the prescribed format.
• Ignoring physical-standards clauses for posts that require them — disqualification at the PET/PMT stage is common.

How to verify any update for ISRO Recruitment

The single authoritative source for ISRO Recruitment updates is the official Indian Space Research Organisation portal at isro.gov.in. Every paragraph on this page is written from the long-term, evergreen structure of ISRO Recruitment — the post profile, the selection process and the broad shape of the syllabus and exam pattern. Specifics such as the exact application window, the cycle-wise vacancy count, the precise application fee, the cut-off marks, the venue allotment, the answer key release schedule and the final result date are always cycle-specific. For those, open the latest official notification PDF on isro.gov.in and read the relevant clause directly.

We refresh this page when Indian Space Research Organisation publishes new ISRO Recruitment information so that the structural details here stay aligned with the latest official guidance. We do not publish unverified release dates, leaked answer keys, rumoured vacancy splits or unofficial cut-off claims. If a date is uncertain, this page will say so plainly and point you to the official notification rather than guess.

Things to avoid while preparing for ISRO Recruitment

• Do not rely on a single coaching prediction for the application window or the exam date — the only binding source is the official ISRO notification on isro.gov.in.
• Do not assume that age relaxation, fee or syllabus weightage from a previous cycle automatically applies to the current cycle. Reservation clauses and fee structures are restated in every notification.
• Do not trust unofficial answer keys, leaked papers or social-media cut-off claims; the official answer key window is the only safe input for raw-score estimation.
• Do not delay document collection. Class 10, Class 12, graduation, category, EWS, PwBD and ID proofs in the prescribed format should be ready before the application window opens — a missing certificate at verification can lead to disqualification.
• Do not skip the official mock test on the ISRO portal before the computer-based stage — familiarity with the testing interface saves crucial minutes on exam day.

Related ISRO pages

Use the related links below to navigate between the eligibility, syllabus, exam-pattern, admit-card and result pages for ISRO Recruitment and other PSU & Engineering Govt Jobs pages on this site. All of these pages follow the same evergreen, verification-first structure.