Where can I check the BSNL JTO Syllabus 2026?

Candidates can check the BSNL JTO Syllabus 2026 for various Posts in this article.

What are the total questions in the BSNL JTO Exam 2026?

In BSNL JTO Exam 2026, a total of 120 questions will be asked.

BSNL JTO Syllabus 2026, Check Exam Pattern & Important Topics

Table of Contents

Bharat Sanchar Nigam Limited (BSNL) has released the official syllabus & Exam Pattern for Junior Telecom Officer (JTO) Posts on its website at bsnl.co.in. Interested candidates applying for these posts should check the BSNL JTO Syllabus 2026. This article explains the detailed topic-wise syllabus & exam pattern. Candidates should read this article for all important details regarding the exam syllabus & pattern.

BSNL Syllabus 2026: Overview

The candidates must refer to the table below to check the key details regarding the BSNL 2026 Syllabus:

BSNL JTO Syllabus 2026
Organization	Bharat Sanchar Nigam Limited (BSNL)
BSNL Exam Pattern	MCQ Based 480 Marks 120 Questions
Selection Process	Computer-Based Test Document Verification
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BSNL JTO Exam Pattern 2026

Candidates must know the BSNL JTO Exam Pattern 2026 well to understand the paper structure. The exam pattern includes the number of questions, total marks, duration, etc. The total marks for the Exam will be 480, and 1 mark will be deducted for each wrong answer. Candidates can review the BSNL exam pattern to understand it.

Part	Particulars	Marks	Number of Questions	Negative Mark	Duration
Part I	Engineering Stream – I	200 Marks	50 Questions	01	3 Hours (Total Exam)
Part II	Engineering Stream – II	200 Marks	50 Questions
Part III	General Ability Test	80 Marks	20 Questions
Total		480 Marks	120 Questions		3 Hours

BSNL JTO Syllabus 2026

Bharat Sanchar Nigam Limited will conduct the Computer-Based Test for selecting candidates for various positions. The aspirants should check the Syllabus and prepare for every topic rigorously. Below is an in-depth breakdown of the syllabus outlining the specific subjects and key topics candidates should focus on in preparation for the examination.

Section	Subject	Topics
Engineering Stream I	Materials and Components	Structure and properties of electronic engineering materials; conductors, semiconductors, and insulators; magnetic, ferroelectric, piezoelectric, ceramic, optical, and superconducting materials; passive components and characteristics; resistors, capacitors, and inductors; ferrites; quartz crystal; ceramic resonators; electromagnetic and electromechanical components.
	Physical Electronics, Electron Devices and ICs	Electrons and holes in semiconductors; carrier statistics; mechanics of current flow in a semiconductor; Hall effect; junction theory; different types of diodes and their characteristics; bipolar junction transistor; field effect transistors; power switching devices like SCRs, CTOs and power MOSFETs; basics of ICs-bipolar, MOS and CMOS types; basics of opto-electronics.
	Network Theory	Network analysis techniques; network theorems; transient and steady-state sinusoidal response; transmission criteria including delay and rise time; Elmore’s and other definitions; effect of cascading; elements of network synthesis.
	Electromagnetic Theory	Transmission lines; basic theory; standing waves; matching applications; microstrip lines; basics of waveguides and resonators; elements of antenna theory.
	Electronic Measurements and Instrumentation	Basic concepts, standards, and error analysis; measurements of basic electrical quantities and parameters; electronic measuring instruments and their principles of working; analog and digital comparison; characteristics and applications; transducers; electronic measurements of non-electrical quantities like temperature, pressure and humidity; basics of telemetry for industrial use.
	Power Electronics	Power semiconductor devices; thyristor; power transistor; MOSFETs; characteristics and operation; AC to DC converters; 1-phase and 3-phase DC to DC converters; AC regulators; thyristor-controlled reactors; switched capacitor networks; inverters; single-phase and 3-phase; pulse width modulation; sinusoidal modulation with uniform sampling; switched mode power supplies.
Engineering Stream II	Analog Electronic Circuits	Transistor biasing and stabilization; small signal analysis; power amplifiers; frequency response; wide band techniques; feedback amplifiers; tuned amplifiers; oscillators; rectifiers and power supplies; operational amplifier; other linear integrated circuits and applications; pulse shaping circuits and waveform generators.
	Digital Electronic Circuits	Transistor as a switching element; Boolean algebra; simplification of Boolean functions; Karnaugh Map and applications; IC logic gates and their characteristics; IC logic families: DTL, TTL, ECL, NMOS, PMOS and CMOS gates and their comparison; combinational logic circuits; half adder, full adder; digital comparator; multiplexer; demultiplexer; ROM and applications; flip-flops: R-S, J-K, D and T; different types of counters and registers; waveform generators; A/D and D/A converters; semiconductor memories.
	Control Systems	Transient and steady-state response of control systems; effect of feedback on stability and sensitivity; root locus techniques; frequency response analysis; concepts of gain and phase margins; Constant-M and Constant-N Nichol’s Chart; approximation of transient response from Constant-N Nichol’s Chart; approximation of transient response from closed-loop frequency response; design of control systems; compensators; industrial controllers.
	Communication Systems	Basic information theory; modulation and detection in analogue and digital systems; sampling and data reconstruction; quantisation and coding; time division and frequency division multiplexing; equalisation; optical communication in free space and fibre optic; propagation of signals at HF, VHF, UHF and microwave frequencies; satellite communication.
	Microwave Engineering	Microwave tubes and solid-state devices; microwave generation and amplifiers; waveguides and other microwave components and circuits; microstrip circuits; microwave antennas; microwave measurements; MASERS and LASERS; microwave propagation; microwave communication systems, terrestrial and satellite-based.
	Computer Engineering	Number systems; data representation; programming; elements of a high-level programming language PASCAL/C; use of basic data structures; fundamentals of computer architecture; processor design; control unit design; memory organization; I/O system organization; personal computers and their typical uses.
	Microprocessors	Microprocessor architecture; instruction set and simple assembly language programming; interfacing for memory and I/O; applications of microprocessors in telecommunications and power systems.
GAT (Section III)	General Ability Test	Candidate’s comprehension and understanding of General English; questions on knowledge of current events; matters of everyday observation and experience in scientific aspects expected of an educated person; events and developments in telecommunications; history of India and geography; questions answerable without special study by an educated person.

BSNL JTO Minimum Qualification Marks

Category	Minimum Qualifying Marks
Category	Each Section	Overall
UR/OBC(CL)	40%	50%
SC/ST/OBC (NCL)/PwBD/EWS	35%	45%

BSNL JTO Preparation Tips 2026

Check the BSNL JTO syllabus and exam pattern to understand how the exam works.
Make a proper study plan to finish the full syllabus on time.
Prepare short notes to help with quick revision.
Practice mock tests to understand the exam format better.
Solve previous year question papers to find important topics and frequently asked questions.