ISRO ISTRAC Study Material 2026: Syllabus-Based Resources for Technical Assistant, Technician-B & Other Posts

With ISRO Telemetry Tracking and Command Network (ISTRAC) inviting applications under Advertisement No. ISTRAC:02:2026 for Technical Assistant, Scientific Assistant, Library Assistant-A, Technician-B, Draughtsman-B, and Cook-A posts, candidates across India are now searching for the best ISRO ISTRAC study material 2026 to prepare for the Written Test/CBT.

Since the syllabus for every post is curriculum-based — tied directly to the ITI trade, diploma, or degree qualification prescribed for that post — choosing the right study material means going back to your core curriculum books rather than generic competitive exam guides. This blog breaks down exactly what to study, post by post, along with free and paid resources to help you prepare efficiently for the ISTRAC 2026 recruitment exam.

ISRO 2026 Technical Assistant Previous Year Question Paper PDF Download

ISRO 2026 Technician-B Previous Year Question Papers PDF Download

ISRO ISTRAC Recruitment 2026 Overview – Details Here!

Important Dates for ISRO ISTRAC Exam 2026

ISRO ISTRAC 2026 Study Material Must Be Curriculum-Based – Download Syllabus Here!

Unlike many government exams that test general aptitude alone, the ISRO ISTRAC written test/CBT explicitly states that the syllabus is curriculum-based, meaning questions are drawn from the same academic curriculum as your essential qualification — NCVT trade syllabus for Technician-B and Draughtsman-B, diploma syllabus for Technical Assistant, and degree syllabus for Scientific Assistant. This is why your best study material is often the textbook you already used during your ITI, diploma, or degree course, supplemented with revision guides and previous ISRO/DRDO/PSU-pattern question papers for practice.

Download ISRO ISTRAC Syllabus 2026 for topic & mark details

 ISRO ISTRAC SYLLABUS 2026 PDF

ISRO ISTRAC 2026 Study Material for Technician-B (Electronics Mechanic Trade)

For Post Code 001 (ITI Electronics Mechanic), candidates should focus their study material on:

• NCVT/NIMI Electronics Mechanic trade theory books (Semester 1 and 2)
• Basic electronics: semiconductor devices, diodes, transistors, rectifiers
• Electronic measuring instruments: multimeter, CRO, function generator
• Power electronics systems and consumer electronics appliance repair fundamentals
• Industrial electronics basics: relays, sensors, PLC fundamentals
• Workshop calculation and science (standard ITI workshop science textbook)
• Engineering drawing basics related to electronics circuits

Recommended sources: NCVT MIS official trade theory and practical books, NIMI (National Instructional Media Institute) publications, and previous ITI-level competitive exam papers from PSUs like BHEL, ONGC, and ISRO Technician recruitment.

ISRO ISTRAC 2026 Study Material for Technician-B (Carpenter Trade)

For Post Code 002 (ITI Carpenter), study material should cover:

• NCVT/NIMI Carpenter trade theory (Semester 1 and 2)
• Wood types, properties, and seasoning techniques
• Carpentry tools, joints, and furniture-making processes
• Workshop calculation and science
• Basic technical drawing related to carpentry and woodwork

ISRO ISTRAC 2026 Study Material for Draughtsman-B (Civil and Mechanical)

For Post Codes 003 and 004, candidates need:

• NCVT/NIMI Draughtsman (Civil) or Draughtsman (Mechanical) trade theory books
• Engineering drawing fundamentals: orthographic projections, sectional views, dimensioning
• AutoCAD basics (as increasingly used in modern draughtsman roles)
• Building construction and civil engineering drawing basics (for Civil trade)
• Machine drawing and mechanical component drawing (for Mechanical trade)
• Building materials and construction technology fundamentals (Civil)

ISRO ISTRAC 2026 Study Material for Technical Assistant (Electronics)

For Post Code 005, since eligibility requires a First Class Diploma in Electronics, study material should be based on your diploma-level core subjects:

• Basic Electronics Engineering (semiconductor devices, amplifiers, oscillators)
• Analog and Digital Electronics
• Communication Systems (analog and digital communication basics)
• Electronic Measurements and Instrumentation
• Microprocessors and Microcontrollers basics
• Power Electronics fundamentals
• Diploma-level textbooks from your respective State Board polytechnic curriculum are the most reliable source, supplemented with GATE/PSU-level electronics objective question banks for practice.

ISRO ISTRAC 2026 Study Material for Technical Assistant (Mechanical)

For Post Code 006, study material should cover diploma-level Mechanical Engineering subjects:

• Engineering Mechanics and Strength of Materials
• Thermodynamics and Heat Engines
• Manufacturing Processes and Machine Tools
• Fluid Mechanics and Hydraulic Machines
• Material Science and Metallurgy
• Engineering Drawing (Mechanical)

ISRO ISTRAC 2026 Study Material for Scientific Assistant (Computer Science)

For Post Code 007, since eligibility requires a First Class B.Sc. with Computer Science as main subject, focus your study material on:

• Programming fundamentals (C, C++, Python basics as typically covered in B.Sc. Computer Science)
• Data Structures and Algorithms
• Database Management Systems (DBMS)
• Computer Networks fundamentals
• Operating Systems basics
• Digital Logic and Computer Organization
• Software Engineering basics

Recommended sources: standard B.Sc. Computer Science university textbooks, NPTEL course notes for Computer Science fundamentals, and previous ISRO Scientist/Engineer ‘SC’ Computer Science papers for practice, since ISRO’s technical recruitment exams tend to follow a similar core-subject weightage.

ISRO ISTRAC 2026 Study Material for Scientific Assistant (Mathematics)

For Post Code 008, since eligibility requires a First Class B.Sc. with Mathematics as main subject, study material should include:

• Calculus (differential and integral)
• Linear Algebra and Matrices
• Real Analysis basics
• Differential Equations
• Statistics and Probability
• Numerical Methods
• Standard B.Sc. Mathematics university textbooks and NPTEL Mathematics course material are ideal, along with previous CSIR-NET/GATE Mathematics objective papers for practice at an appropriate difficulty level.

ISRO ISTRAC 2026 Study Material for Library Assistant-A

For Post Code 009, since eligibility requires a First Class Master’s degree in Library Science/Library & Information Science, study material should cover:

• Library classification systems (DDC, UDC)
• Cataloguing rules (AACR2, RDA basics)
• Information Science and Library Management fundamentals
• Reference and Information Services
• Computer applications in libraries (library automation basics)
• Basic computer literacy (MS Office, internet usage), since the skill test for this post specifically tests computer literacy

ISRO ISTRAC 2026 Study Material for Cook-A

For Post Code 010, while there’s no formal educational curriculum since eligibility is SSLC/SSC plus 5 years of professional cooking experience, study material for the written test/CBT should focus on:

• General knowledge and current affairs
• Basic numerical ability and reasoning
• Food safety and hygiene standards (commonly tested in institutional cook recruitment exams)
• General English/Hindi comprehension

Since the written test is of a general curriculum-based nature for this post, candidates can refer to standard SSLC-level general knowledge and reasoning guides, while the skill test itself should be prepared through hands-on practice of institutional/canteen-scale cooking.

General Study Material Tips for All ISTRAC 2026 Posts

1. Prioritize your original curriculum textbooks over generic guides, since the exam explicitly states the syllabus is curriculum-based.
2. Practice negative-marking-aware mock tests using the +1/-0.33 scheme to build accuracy alongside your subject study.
3. Use NPTEL and SWAYAM free courses for diploma and degree-level technical subjects (Electronics, Mechanical, Computer Science, Mathematics) — these are free, structured, and closely aligned with Indian academic curricula.
4. Refer to previous ISRO, DRDO, and PSU technical recruitment papers for the same trade/discipline, as these organizations often test similar core-subject depth.
5. Keep general awareness updated for the written test’s non-technical component (where applicable), covering space sector current affairs, basic science, and government schemes.
6. Don’t neglect the skill test — study material alone won’t help with the practical, go/no-go skill test; hands-on practice specific to your trade or discipline is equally essential.