Indian Railways · S&T Department · SNT3

Know Your Network.
Own the Field.

Knowledge hub for Apprentice Technician (Telecom) Gr.III — covering the full SNT3 curriculum across Phase I & Phase II.

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19Subjects
2Phases
52WDuration
1400Total Marks
ACT-45 Batch at STTC
ACT-45 BATCH STTC / Moula-Ali
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SNT3Course Code
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IRISET / STTCInstitute
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Apprentice Technician (Telecom) Gr.IIIDesignation
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3 Topics LiveUpdated Regularly
// AT A GLANCE

Curriculum Summary

A quick snapshot of the full SNT3 programme — explore any phase or jump straight to a live topic.

📘 12 Phase I subjects
📗 11 Phase II subjects
⏱️ 612 Institutional hours
🟢 3 Topics live now
🏛️ General & Railway Org. ST-01 · Theory + Field 🦺 Safety & First Aid ST-02 · Theory + Field 🌐 Media Converter ST-48 · OFC Field Device
// EXPLORE

Find Your Way In

Each section now lives on its own page — pick where you want to start.

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Phase I
Foundational Telecom — 12 subjects, 288 hours, 450 marks at STTC.
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Phase II
Advanced Telecom & Networks — 11 subjects, 324 hours, 450 marks.
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Full Syllabus
All 19 subjects across both phases in one structured view.
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About This Hub
What this is, how it's structured, and the reference it's built on.
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