SOME IMPORTANT FACTS ASSOCIATED WITH IR... pls continue adding to the list
Fastest train
Bhopal shatabdi

Fastest Rajdhani
Mumbai Rajdhani

Fastest Duronto
NDLS-SDAH duronto

Fastest GR
BDTS-NZM GR

Fastest...
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Janshatabdi
NZM-Kota Janshatabdi

Fastest NG Express
Satpura Express [BTC-JBP]

Fastest Express train
12156 NZM-BPL Shaan-E-Bhopal SF Express

Fastest Sampark Kranti
12907/08 Maharashtra Sampark Kranti Express

Fastest Passenger Service
ET-KTE Fast Passenger

Longest running train
Vivek exp (CAPE DBRG)

Longest Daily running train
Kerala exp

Longest running shatabdi
bhopal shatabdi

Longest running Rajdhani
Trivandrum Rajdhani

Longest daily Running Rajdhani
SDAH raj

Longest running Duronto
NZM-ERS duronto

Longest running GR
NZM-MAS

Longest and ONLY DAILY GR:
SC-VSKP GR

Oldest Railway station
Chhatrapati Shivaji Terminus (Mumbai)

Biggest Railway stn
HWH

Busiest Railway station
CNB..(excluding locals)

Biggest Railway yard
Katni/MGS

Longest Railway platform
Kharagpur...2,733 ft. in length

Cleanest Railway station
TVC

Longest railway bridge
Vallarpadam to idapalli(4.62km) ,kerala

Longest passenger railway bridge
Nehru Setu on Sone River

Longest Railway tunnel
Karbude On Konkan Railway between Bhoke and Ukshi (6.5 km) when completed Pir Panjal tunnel in Kashmir Valley Railway line will be the longest transport tunnel in the country at (11km).

First train Ran ...
16th April 1853 (between Bombay to Thane)

First Shatabdi
NDLS-JHS Shatabdi (Extended to BPL and named BPL Shatabdi)

First Rajdhani
HWH Rajdhani

First Railway bridge
Dapoorie Viaduct on the Mumbai-Thane route

First Railway tunnel
Parsik Tunnel

First underground Railway
Calcutta metro

First Electric train Ran on
3rd Feb' 1925 (between Bombay VT and Kurla)

Toilets introduced
1891 (1st Class) & 1907 (lower classes)

First computerised reservation
New Delhi (1986)

Longest station name
Venkatanarasimharajuvariapeta (Andhra Pradesh)

Shortest Run
Nagpur To Ajni

Shortest station name
IB (orissa)/ G (Gondia)

Trains with maximum no of halts
Howrah-Amritsar Express (115 halts)

Shed with maximum no of Electric loco..
BZA/ET

Shed with maximum no of diesel loco
KTE

Shed with max no of WAP1
GZB/RPM

Shed with max no of WAP4..
ED with 97

Shed with max no of WAP5..
GZB with 43

Shed with max no of WAP7
GZB with 56

Shed with max no of WAM4..
ET or BZA or BIA(not sure wich one)

Shed with max no of WCAM 3
KYN

Shed with max no of WCAM-1 & WCAM-2/2P
BL with 52 WCAM-1 & 20 WCAM-2P

First and Fully electrified route
Bombay Victoria Terminus (CST)-Poona (Pune) and CST-Igatpuri

First & Fully Electrified Trunk Route
NDLS-HWH

Largest Diesel Locomotive Shed
New Katni Junction (NKJ)

Biggest Diesel Locomotive Shed
Visakhapatnam (VSKP)

First Shed to get EMDs
Hubli,SWR

Shed with most no. of WDG4s
Hubli(UBL),SWR

Shed with most no. of WDP-4/4Bs
Krishnarajapuram(KJM),SWR

Shortest raj
JAT Rajdhani

Shortest duronto
HWH-DGHA duronto

Longest non stop run:
TVC Rajdhani from BRC to Kota

Longest run in one state
Maharashtra express

First Train To be Certified For The Quality At The ISO:9000 Level
12155 Bhopal Express (HBJ-NZM)

Shortest Super fast express
Tippu

Line with maximum MPS
faridabad-AGC -155kph

Longest train running with WAP 1
...... ERS NZM millenium epress

Longest train running with WAP4..
Kerala exp/NZM-TVC swarna jayanti... 3000+kms

Longest run with WAP5..
NZM-MAS duronto

Longest run with WAP7...
MAS raj/MAS GR...

Longest run with WCAM 2
Pune NZM Duronto from Pune to BRC (529 kms)

Longest run with WDM 2....
Okha Rameshwaran Express (3194 kms)

Oldest train in india
Deccan queen/Punjab mail

Train with max no of rakes
kerala exp.. 6 running. nd one extra...

India's Oldest Workshop
Kanchrapara (KPA)

Shortest Distance Between Two Stations
Perambur Carriage Works and Perambur 200M or 250M


Longest train of IR:

12417/12418 Prayagraj Express.


The only Train to ignore CNB

Allahabad Duronto express

Shatabdi Train Service Started In
1988

Largest Zone In INDIAN RAILWAYS
Eastern railways

Largest Workshop - INDIAN RAILWAYS
Jamalpur Workshop