// ABOUT THIS HUB

Built for the field,
not just the exam.

A reference designed to be read on a phone, in a relay room, five minutes before you need the answer.

IR TeleKnow covers every subject in the official SNT3 curriculum with field-ready explanations โ€” flowcharts, diagrams, LED tables, fault guides. Content is based on the Revised Training Module for Non-Gazetted S&T staff (Ref: 2024/E(Trg)/41/7 I/3137363/2025).

๐Ÿ“–Official SNT3 curriculum โ€” all 19 subjects
๐Ÿ”งField-first: LED tables, fault guides, diagrams
๐Ÿš‚IR-specific: SCR zone, WEBFIL, TEJAS, FABIO
๐Ÿ“กTheory + Field progress tracked per subject
Reference: Revised Training Module for Non-Gazetted Staff of S&T Department, Indian Railways ยท Ref. No. 2024/E(Trg)/41/7 I/3137363/2025. Content is prepared for educational and revision purposes only and does not replace official manuals or institute instruction.
Institutional Training
17 Weeks ยท 900 Marks
Field Training (Zonal)
35 Weeks ยท 500 Marks
Total Duration
52 Weeks
Grand Total Marks
1400 Marks
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Browse the Full Syllabus
Phase I Phase II Full Syllabus โ†’