Facts about Indian Railways:

First Passenger Train Ran On: 16th April 1853 (between Bombay to Thane)
First Railway Bridge: Dapoorie Viaduct on the Mumbai-Thane route
First Rail Tunnel: Parsik Tunnel
First Ghats Covered by the Rail lines: Thal and Bhore Ghats
First Underground Railway: Calcutta METRO
First Computerized Reservation System started in: New Delhi (1986)
First Electric Train ran on: 3rd Feb' 1925 (between Bombay VT and Kurla)
Toilets on Trains were introduced in: 1891 (1st Class) & 1907 (lower classes)
Shortest Station Name: Ib (Orissa)
Longest Station Name: Sri Venkatanarasimharajuvariapeta (Tamil Nadu)
Busiest Railway Station: Lucknow (64 trains everyday)
Longest Run (Time): Himsagar Express (3751 km in 74 hrs and 55 min)
Shortest Run: Route between Nagpur to Ajni (3km)
Longest Run for Daily Train: Kerala Express (3054 km in 42.5 hrs)
Longest Non-Stop Run (Distance): Trivandrum Rajdhani (528 km in 6.5 hrs)
Longest Railway Platform in the World: Kharagpur (2,733 ft in length)
Longest Railway Bridge: Nehru Setu on Sone River (10044ft in length)
Longest Tunnel: On Konkan Railway between Monkey hill & Khandala (6.5 km)
Oldest Preserved Locomotive: Fairy Queen (1855), still in working order
Gauges of Track: 4 Gauges; BG (5'6"), MG (1 metre), NG (2)
IR Daily Runs: About 14,000 trains
IR Daily Carries: More than 11 million passengers & 1 million tonnes of freight
IR's only line with Rack & Pinion system: From Mettupalayam to Conoor
IR's Fastest Train: Bhopal-Shatabdi (runs at a speed up to 140 Km/ph)
Railway Station with all the Three Gauges: Siliguri Railway Station
Route Kilometers of Track: More than 62,000 kms
People Employed in IR: About 1.6 million people
Train with Maximum Number of Halts: Howrah-Amritsar Express (115 halts)
Trains without Commercial Halts: Sampoorna Kranti Express, Howrah Rajdhani, Bombay Rajdhani, Pragati Express and Pune Shatabdi
Stations across State Lines: Navapur (Maharashtra and Gujarat), Bhawani Mandi (Madhya Pradesh and Rajasthan)
Classes of travel on Indian Railway: Ist AC, 2nd AC, 3rd AC, AC Chair Car IInd sleeper & IInd ordinary