BSNL JTO Syllabus 2026 – Entire Assessment pattern, Subject-wise Topics & Marking Scheme

BSNL JTO Syllabus 2026 - Exam Pattern, Subject-wise Topics, and Marking Scheme

The BSNL JTO Syllabus 2026 covers three broad sections Engineering Stream I, Engineering Stream II, along with a General Ability Test tested through a Computer-Based Test (CBT) of 120 questions worth 480 marks in 3 hours. This article breaks down every topic, the marking scheme, section-wise qualifying marks, as well as preparation pointers in one place thus you can build a focused study plan without guesswork. Knowing the entire syllabus as well as test structure before you begin preparing is the single most crucial step toward cracking the BSNL Junior Telecom Officer recruitment.

BSNL JTO 2026 - Recruitment Overview

It is informed that, Before diving into the syllabus, here is a quick snapshot of the BSNL JTO 2026 recruitment to give you the full context of the recruitment process.

Follow this link: BSNL JTO Syllabus in addition to Examination format 2026

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BSNL JTO Exam Pattern 2026

The BSNL JTO assessment pattern 2026 follows a structured three-section format, where applicants must perform well both section-wise along with overall to qualify. Understanding this layout is essential before planning your preparation strategy.

The CBT is a single-stage selection exam. There is no separate time limit per section the total duration of 3 hours applies to the entire paper. All 120 questions are objective-type (MCQ), along with each correct answer carries 4 marks, while every wrong answer deducts 1 mark.

Marking Scheme

Correct answer: +4 marks

Wrong answer: −1 mark

Interested applicants should know that, Unattempted question: 0 marks

Section-wise and Overall Qualifying Marks

Interested applicants should know that, Applicants must clear both the sectional cut-off along with the aggregate cut-off to be considered for the final merit list. Meeting only one of the two conditions is not sufficient.

BSNL JTO Syllabus 2026 - Section-wise Breakdown

The BSNL JTO syllabus is divided into two engineering streams along with a general ability component. Together, these sections test both your technical depth as an electronics/telecom engineer as well as your broader aptitude along with awareness. Below is a detailed breakdown of every topic you need to cover.

Section I - Engineering Stream I

The conducting body has announced that, Section I focuses on the foundational as well as applied areas of electronics engineering. It tests test-takers on core concepts that form the building blocks of telecom in addition to electrical systems.

The official notification states that, 1. Materials in addition to Components This topic covers the properties along with behaviour of various engineering materials used in electronic systems.

Electrical in addition to thermal conductivity of metals

Semiconductors: intrinsic in addition to extrinsic types

It is informed that, Magnetic materials as well as their applications

Dielectric materials as well as insulators

As per the official update, Passive components: resistors, capacitors, inductors

2. Physical Electronics, Electron Devices along with Integrated Circuits applicants must be familiar with the working principles of a wide range of electron devices used in modern electronics.

P-N junction diodes, Zener diodes, tunnel diodes

Bipolar Junction Transistors (BJTs) as well as Field-Effect Transistors (FETs)

Silicon-Controlled Rectifiers (SCRs) in addition to CMOS technology

As per the official update, Opto-electronic devices: LEDs, photodiodes, LCDs

Interested applicants should know that, 3. Network Theory This section requires a strong grasp of circuit analysis techniques along with the behaviour of electrical networks.

The department has confirmed that, Network theorems: Thevenin's, Norton's, Superposition, Maximum Power Transfer

Transient along with steady-state analysis of circuits

Two-port network parameters

Transmission line theory along with applications

4. Electromagnetic Theory Covers the principles governing electromagnetic wave propagation in addition to the design of transmission systems.

Maxwell's equations as well as boundary conditions

Wave propagation in free space along with guided media

Waveguides: rectangular along with circular types

Antenna theory in addition to radiation patterns

5. Electronic Measurements along with Instrumentation Tests the candidate's knowledge of measurement techniques in addition to the instruments used in electronics labs in addition to field deployments.

Types of errors in measurement along with their sources

CRO, signal generators, frequency meters, Q-meters

Aspirants are advised that, Transducers: thermocouple, strain gauge, LVDT

Data acquisition, telemetry, along with remote sensing systems

6. Power Electronics Covers the design in addition to operation of power conversion circuits in addition to control systems used in modern electrical in addition to telecom infrastructure.

Thyristors, TRIACs, GTOs along with their triggering methods

According to the latest notice, AC-to-DC converters in addition to rectifiers

DC-to-AC inverters

Switched-Mode Power Supplies (SMPS) in addition to Pulse Width Modulation (PWM)

Section II - Engineering Stream II

Section II goes deeper into advanced electronics, communication systems, computing, as well as microprocessor-based systems all directly relevant to telecom engineering roles.

1. Analog Electronic Circuits Focuses on the design in addition to analysis of analog signal processing circuits.

Candidates should note that, Small signal along with large signal amplifiers

Feedback amplifiers as well as oscillators (RC, LC, crystal)

It is informed that, Operational amplifiers (Op-Amp) along with their applications

The conducting body has announced that, Regulated along with unregulated power supply circuits

2. Digital Electronic Circuits Tests applicants on logic design in addition to the digital systems used extensively in communication along with computing hardware.

Boolean algebra, logic simplification, Karnaugh maps

It is informed that, Combinational logic: adders, multiplexers, decoders

Sequential circuits: flip-flops, registers, counters

Memory devices: RAM, ROM, EEPROM

Analog-to-Digital (A/D) as well as Digital-to-Analog (D/A) converters

Interested applicants should know that, 3. Control Systems Covers the theory as well as practical aspects of automatic control systems, which are fundamental to telecom network management.

Open-loop in addition to closed-loop (feedback) control systems

Time-domain in addition to frequency-domain analysis

According to the latest notice, Stability: Routh-Hurwitz criterion, Nyquist criterion

Root locus in addition to Bode plot techniques

PID controllers in addition to their tuning

4. Communication Systems One of the most significant sections for a telecom officer, covering all major modulation in addition to transmission techniques.

Analog modulation: AM, FM, PM

Digital modulation: ASK, FSK, PSK, QAM

Interested applicants should know that, Multiplexing techniques: TDM, FDM, WDM

Noise analysis as well as signal-to-noise ratio

Optical fibre communication systems

Satellite communication: VSAT, GPS

5. Microwave Engineering Tests understanding of high-frequency devices along with systems critical to wireless in addition to satellite-based telecom.

Microwave transmission lines along with waveguides

Microwave devices: klystron, magnetron, travelling-wave tube

The official notification states that, Microwave antennas: horn, parabolic dish, patch antennas

MASER, LASER, as well as their telecom applications

Propagation of radio waves: ground wave, sky wave, space wave

6. Computer Engineering Covers digital computing principles that underpin modern telecommunication network infrastructure.

Number systems in addition to data representation

Computer organisation along with architecture

As per the official update, Memory hierarchy: cache, RAM, virtual memory

Input/Output systems along with interfacing

As per the official update, Basics of programming along with algorithm design

Operating system concepts

7. Microprocessors Tests the candidate's practical understanding of microprocessor systems in addition to their role in telecom equipment.

Architecture of 8085 in addition to 8086 microprocessors

Instruction set as well as addressing modes

Interrupts along with interfacing with peripheral devices

Microcontroller applications in telecom systems

Section III - General Ability Test

The General Ability Test assesses applicants on non-technical parameters including language skills, current awareness, as well as general knowledge. Though it carries fewer marks (80 out of 480), performing well here can improve your overall rank as well as you cannot afford to fail the sectional qualifying threshold.

Topics covered in this section include:

As per the official update, English Language: Reading comprehension, grammar, vocabulary, sentence correction, as well as basic written communication

Current Affairs: National in addition to international events, government schemes, science in addition to technology developments

General Knowledge: Indian history, geography, polity, economy, along with Constitution

Everyday Science: Basic scientific principles, everyday observations, in addition to environmental science

Aspirants are advised that, Telecom Awareness: Awareness of India's telecom sector, key policies, along with developments in BSNL