BSNL JTO Syllabus 2026 & Exam Pattern: CBT Format & Topics

Bharat Sanchar Nigam Limited (BSNL JTO) has released the comprehensive framework for the Junior Telecom Officer CBT recruitment. Aimed at filling 100 vacancies, candidates aiming for this role must understand the intricate subject-wise topics, marking scheme, question distribution, and the complete exam format. For aspirants preparing for the upcoming cycle, reviewing preparation resources like BSNL JTO Previous Year Question Papers- Click to Check and keeping track of updates via the BSNL JTO Exam City Intimation Slip 2026 Out- Click to Download are critical steps toward success.

BSNL JTO Exam Pattern Particulars

The selection process heavily relies on the Computer-Based Test (CBT) structure. Below is the checklist of exam particulars:

• 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)

Exam Structure & Section-wise Distribution

The exam is structured into three distinct sections spanning engineering streams and general ability:

• Section I: Engineering Stream – I (200 Marks, 50 Questions)
• Section II: Engineering Stream – II (200 Marks, 50 Questions)
• Section III: General Ability Test (80 Marks, 20 Questions)

Detailed BSNL JTO Syllabus Topics

Review the thorough topic classification across the different exam streams:

• 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)
• 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)
• 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

Marking Scheme & Qualifying Criteria

Candidates must pay close attention to the marking criteria during the computer-based assessment. Correct answers receive +4 marks, while incorrect answers attract a penalty of -1 mark.

To clear the cutoffs, candidates must satisfy both sectional and overall thresholds:

• Unreserved & OBC (CL): 40% per section, 50% overall
• SC, ST, OBC (NCL), PwBD & EWS: 35% per section, 45% overall

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