What is the selection process for ISRO Scientist/Engineer SC?

ISRO Scientist/Engineer SC recruitment involves a written test (CBT) followed by a rigorous Technical Interview. The written test has 80 questions covering technical subject, general science & maths, and general awareness. Candidates who clear the written test cutoff are called for a face-to-face technical interview at ISRO centres. The interview is highly technical and may include problem-solving, analytical questions, and discussion of the candidate's final year project. Final selection is merit-based from the combined score.

What is the salary for ISRO Scientist/Engineer SC?

ISRO Scientist/Engineer SC positions carry a pay band of approximately Rs. 56,100–1,77,500 per month (Level 10, 7th CPC). The total CTC including allowances and benefits is approximately Rs. 12–16 lakh per annum for a fresh SC-level scientist. ISRO also provides subsidised housing at its campuses, medical benefits, and an annual professional development budget. Scientists with demonstrable research output can earn performance awards additionally.

What is it like to work as a Scientist/Engineer at ISRO?

ISRO Scientist/Engineers work on challenging national space projects including launch vehicles (PSLV, GSLV, LVM3), satellites (communication, remote sensing, navigation), and deep space missions (Chandrayaan, Mangalyaan, Gaganyaan). The work culture is research-oriented with a flat hierarchy at the technical level. Most positions are based at ISRO centres in Bangalore, Thiruvananthapuram, Ahmedabad, Shriharikota, Hassan, or Hyderabad. Work involves both design/analysis and hands-on hardware integration.

Is there a bond period for ISRO Scientist/Engineers?

ISRO Scientist/Engineer appointments are Central Government equivalent posts and do not have a financial bond like PSU Engineer Trainees. However, selected candidates go through a probation period of two years. ISRO scientists who receive sponsored higher education (M.Tech/PhD through IIST/other institutes) are bound by service contracts for the duration of their sponsored programme plus additional service period. Resignation within probation or sponsorship period has service-rule implications.

How should I prepare for the ISRO technical interview?

The ISRO technical interview panel consists of senior scientists who test fundamental engineering concepts rigorously. Prepare all subjects from your B.Tech curriculum, not just GATE syllabus topics. Be ready to explain your final year project in detail, including design choices, calculations, and real-world constraints. Study ISRO missions in your domain — for example, Electronics candidates should know ISRO's satellite communication systems, while Mechanical candidates should understand launch vehicle propulsion and structures. Practice deriving equations from first principles as interviewers often ask conceptual "why" questions.

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ISRO Scientist/Engineer SC Preparation Guide

ISRO Centralised Recruitment Board (ICRB)

Your Complete Preparation Guide for ISRO Scientist/Engineer SC 2027 — strategy, study plan, tips & more.

DifficultyVery Hard

Total Marks80

Duration90 min

Start Practising Now →Free Mock Tests

Exam Overview

Mode

Online CBT + Interview

Frequency

Irregular — ISRO recruits in batches based on project requirements

Next Exam Date

To be announced

EEligibility Criteria

B.E./B.Tech in relevant discipline with minimum 65% marks (CGPA 6.84/10); age up to 35 years for S/E SC level; GATE score preferred but not always mandatory

ANumber of Attempts

No cap on attempts within age limit

Study Plan by Subject

Technical Subject (50 Questions)

Week 1-4: Foundation

Core concepts & basics

Week 5-8: Deep Practice

Advanced problems & revision

Week 9-12: Mock Tests + Revision

Full-length tests & weak-area focus

Refer to official syllabus for complete topic list

General Science & Mathematics (20 Questions)

Week 1-4: Foundation

Core concepts & basics

Week 5-8: Deep Practice

Advanced problems & revision

Week 9-12: Mock Tests + Revision

Full-length tests & weak-area focus

Refer to official syllabus for complete topic list

General Awareness (10 Questions)

Week 1-4: Foundation

Core concepts & basics

Week 5-8: Deep Practice

Advanced problems & revision

Week 9-12: Mock Tests + Revision

Full-length tests & weak-area focus

Refer to official syllabus for complete topic list

Expert Preparation Tips

ISRO written test is more difficult than GATE in terms of applied and interdisciplinary questions; study all subjects of your B.Tech final year, not just the GATE syllabus topics.

The General Science & Maths section tests applied mathematics (differential equations, linear algebra, probability) and fundamental physics/chemistry — these are scoring if studied well.

For General Awareness, focus specifically on ISRO missions, space science news, and government space policy updates; questions often connect current events to technical concepts.

Preparation for the technical interview should start from day one — collect ISRO previous year interview questions from forums and practice explaining your core subject concepts verbally.

Exam Pattern at a Glance

Section	Questions	Marks	Duration (est.)
Technical Subject (50 Questions)	27	27	30 min
General Science & Mathematics (20 Questions)	27	27	30 min
General Awareness (10 Questions)	27	27	30 min
Total	80	80	90 min

Important Dates

Registration Opens

To be announced

Next Exam Date

To be announced

Conducted By

ISRO Centralised Recruitment Board (ICRB)

Frequently Asked Questions

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