ISRO Scientist/Engineer

ISRO CS Coaching — Scientist/Engineer Computer Science | BTechTutor

Dedicated ISRO CS preparation for the Scientist/Engineer 'Computer Science' post — complete technical syllabus, free PYQs, mock tests, and video classes.

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Exam-focused Syllabus

Part A technical + Part B aptitude coverage

Free PYQs & Mocks

10+ years of ISRO papers and pattern mocks

GATE-to-ISRO Edge

70-85% syllabus overlap, leveraged fully

Overview

ISRO Preparation

ISRO recruits Computer Science Engineers for software development, ground station systems, mission control software, onboard computer systems, embedded software for spacecraft, satellite data processing, and IT systems. The ISRO CS written test covers the core CS curriculum — Data Structures, Algorithms, OS, DBMS, Computer Networks, Compiler Design, Theory of Computation, Digital Logic, and Computer Organisation — at GATE CS equivalent depth.

For KTU CS graduates, the ISRO CS syllabus maps very closely to your B.Tech core subjects from S3 to S6. The GATE CS and ISRO CS syllabi overlap by approximately 85% — the highest overlap of any discipline. Strong GATE CS preparation translates almost directly to ISRO CS readiness. BTechTutor offers ISRO CS preparation with free PYQs and structured video classes.

ISRO Syllabus — Key Topics

Subject AreaKey Topics
Data Structures & AlgorithmsArrays, linked lists, trees (BST, AVL, heap), graphs, sorting, searching, hashing, complexity analysis, DP, greedy
Theory of ComputationFinite automata, regular languages, context-free grammars, PDAs, Turing machines, decidability, complexity classes
Operating SystemsProcesses, threads, scheduling, memory management (paging, segmentation), virtual memory, file systems, deadlocks
Database SystemsER model, relational algebra, SQL, normalisation (1NF to BCNF), B+ trees, transactions, concurrency control, recovery
Computer NetworksOSI/TCP-IP model, routing, switching, IP addressing, subnetting, transport protocols, DNS, HTTP, network security
Computer OrganisationISA, CPU design, pipelining, cache memory hierarchy, memory organisation, I/O systems, interrupts
Digital LogicBoolean algebra, combinational circuits, sequential circuits, minimisation, number representations
Compiler DesignLexical analysis, parsing (LL, LR), semantic analysis, intermediate code, code optimisation, code generation
Aptitude — Part BNumerical, logical, abstract and diagrammatic reasoning — 15 questions
01

How to Prepare — Tips

  • Data Structures and Algorithms is the single highest-weightage area in ISRO CS. Trees, graphs (BFS, DFS, shortest paths), dynamic programming, and complexity analysis are must-master topics.
  • Operating Systems and DBMS together account for a large portion of ISRO CS marks. CPU scheduling algorithms, page replacement, SQL queries, and normalisation appear every year.
  • Theory of Computation — Turing machine problems, CFL/regular language proofs, and complexity classes (P, NP) are high-weightage ISRO CS topics.
  • Computer Networks — TCP/IP layers, routing protocols, subnetting, and transport layer concepts are consistently tested.
  • ISRO CS and GATE CS share approximately 85% syllabus — the highest overlap of any discipline. GATE CS toppers consistently perform well in ISRO CS.
  • Solve ISRO CS PYQs from the last 10+ years. ISRO CS questions have strong pattern repetition and solving PYQs is the most direct preparation activity.

ISRO Resources

Notes, PYQs, mocks, and video classes.

ISRO Syllabus PDF

Official

FREE

Previous Year Papers

PYQs

FREE

Mock Tests

Practice

FREE

Video Classes (Full Course)

Coaching

PAID

Demo Class (YouTube)

YouTube

FREE

Download and enrolment links are shared by the team — reach out on WhatsApp or call to get access.

Related ISRO Pages

Continue exploring branch-wise coaching, syllabus, and resources.

ISRO Coaching HubISRO SyllabusPrevious Year PapersMock Tests
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FAQ

Frequently Asked Questions

Quick answers to questions ISRO aspirants most often ask.

Q01

What is the ISRO CS syllabus?

ISRO CS covers Data Structures and Algorithms, Theory of Computation, Operating Systems, Database Systems, Computer Networks, Computer Organisation and Architecture, Digital Logic, and Compiler Design in Part A (80 marks), plus Aptitude in Part B (15 marks).

Q02

Is GATE CS preparation enough for ISRO CS?

Yes, for the most part. GATE CS and ISRO CS overlap by approximately 85%. Students with strong GATE CS preparation need only targeted ISRO PYQ practice and aptitude preparation to be ready for ISRO CS.

Q03

What ISRO CS cutoff is typically needed?

ISRO CS is competitive. For cycles using GATE scores, the CS cutoff was in the 800+ range (out of 1000) in 2025. For written test cycles, general category candidates typically need 60+ out of 80 in Part A.

Q04

Does BTechTutor offer ISRO CS coaching?

Yes. Free PYQs, syllabus, and mock tests are available. Paid video classes for the complete ISRO CS syllabus are available. Call +91 9895006772.

Q05

What work do ISRO CS Engineers do?

ISRO CS Engineers develop mission control software, satellite data processing systems, onboard computer software for spacecraft, IT infrastructure, and ground station systems for ISRO's space missions.

Q06

Can KTU CS graduates apply for ISRO?

Yes. KTU B.Tech CS graduates with 65% or above are eligible. The KTU CS 2024 scheme curriculum (Theory of Computation, DSA, OS, DBMS, Computer Networks, Compiler Design) directly covers the ISRO CS syllabus.