SignalApp is the all-in-one knowledge & productivity app built for Railway employees as well as Railway Aspirants — Prepare for RRB NTPC, RRB JE, RRB Group D and once selected prepare for LDCE Exams for promotions.

Your Journey from Aspirant to Employee.

📌 SOURCES OF INFORMATION
Railway rules, circulars, specifications and technical documents shown in this app are collected from the following publicly available official sources:
• Indian Railways / Railway Board / Circulars — https://indianrailways.gov.in/railwayboard/view_section.jsp?lang=0&id=0,1,388
• RDSO (Research Designs & Standards Organisation) — https://rdso.indianrailways.gov.in/view_section.jsp?lang=0&id=0,4
• CAMTECH (Centre for Advanced Maintenance Technology) — https://indianrailways.gov.in/railwayboard/view_section.jsp?lang=0&id=0,1,304,366,538,2713,2718,2722
• Railway Board Telecom (Policy) — https://telerb.railnet.gov.in/wiki/policy
• Govt Press Release, All Ministries — https://www.pib.gov.in/Allrel.aspx?reg=48&lang=1
• Railway Recruitment Boards (RRB) — https://rrb.indianrailways.gov.in
• CBT Q&A and Quiz - https://nair.indianrailways.gov.in/view_section.jsp?lang=0&id=0,1,809

Additional (non-government) content sources:
• Current Affaris and Current Affairs Quiz — https://www.gktoday.in
• Job alerts — https://www.freejobalert.com
• Rail & metro news — https://metrorailnews.in
• Video content — https://youtube.com/@pibindia & https://youtube.com/@ministryofrailwaysindia

Railway Keyword Dictionary, Relay Dictionary, inspection/maintenance checklists, RailGyani and all Quiz, Cards and Study material is designed and compiled in-house by the SignalApp team from the official documents listed above. They are not government publications.

⚠️ DISCLAIMER
SignalApp is an independent, third-party app made for railway employees. It is NOT an official Government of India or Indian Railways application, and is NOT affiliated with, endorsed by, or representing Indian Railways, RDSO, CAMTECH, the Railway Board, or any government entity. All government information is aggregated from the publicly available official sources listed above; for authoritative and up-to-date information, always refer to those official sources. Trademarks and content belong to their respective owners.

⭐ WHAT YOU GET

📗 Railway Aspirants Complete Preparation Module
• RRB JE
• RRB NTPC
• RRB Gr D

📖 Rules & References
• General & Subsidiary Rules (GR&SR) with instant search
• Railway Keyword & Relay dictionaries
• Inspection & maintenance checklists

📜 Railway Board Circulars
• Latest RB circulars by department — Establishment, Pay Commission, Finance, Safety, Commercial, Traffic & more
• Never miss a new circular again

📗 RDSO, CAMTECH & Technical
• RDSO specifications & standards
• CAMTECH publications
• Codes, manuals & rulebooks — download & read offline

🎯 Latest CBT Q&A
• 6,000+ real previous-year exam questions
• Department-wise practice in Study or Exam mode

🧠 Rail Gyani — AI Q&A
• Ask any railway question and get instant answers grounded in real RDSO documents

📲 Status Updates (NEW)
• Share news, images & links with fellow railwaymen — instantly
• Daily GR&SR, quizzes & official updates from SignalApp

💼 Job Alerts
• All-India railway & other recruitment alerts as they drop

Also inside: 8 Indian languages, light & dark themes, Refer & Earn, secure Google sign-in, and dedicated in-app support.

SignalApp is made with ♥️ in India 🇮🇳 for the Railwaymen who drive the nation.

## What's new (release notes, max 500 chars)
A complete rebuild of SignalApp — faster, cleaner and packed with new features:
• NEW Status updates — share & read updates with fellow railwaymen
• 6,000+ CBT previous-year questions
• Rail Gyani AI Q&A over RDSO documents
• Star your favourite sections
• Download notes & manuals for offline reading
• Refer & Earn, dark mode, 8 languages and more
Thank you for being with us since 2019. 🚂