BSNL JTO Syllabus and Exam Pattern 2026, Junior Telecom Officer Syllabus

If you are preparing for the BSNL Junior Telecom Officer exam, the first thing you need to know is the latest syllabus and exam pattern. As this time, there will be a computer-based test (CBT) with 120 questions for 480 marks. This article provides you with complete insight into the BSNL Junior Telecom Officer syllabus, including subject-wise topics, the exam pattern, and the marking scheme.

BSNL JTO Syllabus and Exam Pattern 2026

Bharat Sanchar Nigam Limited (BSNL) will conduct a computer-based test for a duration of 3 hours. Candidates have to score minimum qualifying marks for each section to be shortlisted for the recruitment process.

Particulars	Details
Organisation	Bharat Sanchar Nigam Limited (BSNL)
Post	Junior Telecom Officer (JTO)
Vacancies	100
Duration of Exam	3 hours
Mode of Exam	Online
No. of Questions	120
Marks	480
Negative Marking	-1
Selection Process	Computer Based Test (CBT)

BSNL Junior Telecom Officer Exam Pattern 2026

Duration: 3 hours

Marking Scheme

Correct Answer: +4 marks.
Wrong Answer: -1 mark

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

Minimum Qualifying Marks

Category	Minimum Marks (per section)	Minimum Overall (Combined)
Unreserved & OBC (CL)	40%	50%
SC, ST, OBC (NCL), PwBD & EWS	35%	45%

Note- Candidates must meet both the sectional and the overall minimum qualifying marks to be considered for the final merit list.

BSNL JTO Syllabus 2026

Below, we have a detailed topic-wise syllabus for all three sections included in BSNL JTO Exam.

Section	Topics
Section I – Engineering Stream	Materials and Components (conductors, semiconductors, magnetic materials, passive components, etc.)
	Physical Electronics, Electron Devices & ICs (diodes, BJTs, FETs, SCRs, CMOS, opto-electronics)
	Network Theory (network theorems, transient/steady state, transmission lines)
	Electromagnetic Theory (waveguides, transmission lines, antennas)
	Electronic Measurements & Instrumentation (errors, measuring instruments, transducers, telemetry)
	Power Electronics (thyristors, converters, inverters, SMPS, PWM)
Section II – Engineering Stream	Analog Electronic Circuits (amplifiers, oscillators, OP-AMP, power supplies)
	Digital Electronic Circuits (Boolean algebra, logic gates, flip-flops, counters, memories, A/D & D/A)
	Control Systems (feedback, stability, root locus, frequency response, controllers)
	Communication Systems (modulation, multiplexing, optical fiber, satellite communication)
	Microwave Engineering (waveguides, microwave devices, antennas, MASER/laser, propagation)
	Computer Engineering (data representation, programming, architecture, memory, I/O systems)
	Microprocessors (architecture, instruction set, interfacing, telecom applications)
Section III – General Ability Test	English comprehension, grammar and basic communication
	Current affairs and general knowledge
	Everyday science and observation
	Indian history and geography
	Telecom-related awareness and basic scientific events

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