The Railway stations where one has to compulsory use FOB to reach any of the platform:
1. Bhatinda BTI
2. Tundla TDL (Earlier only, now new pf 5 is accessible directly from Ticket counter )
3. Anand Vihar Terminus ANVT
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Krishnarajapuram KJM
5. New Jalpaiguri NJP
Add more if any

First/Longest/Oldest in Indian Railways
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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
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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
Longest Run (Time) = Vivek Express (3715 km in Approx 71 hrs)
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 = gorakhpur
Longest Railway Bridge = The Vembanad Rail Bridge(Kerala) length of 4.62 km
Longest Tunnel = Karbude On Konkan Railway between Monkey hill & Khandala (6.5 km)
Oldest Preserved Locomotive = Fairy Queen (1855), still in working order
Indian Railway's Fastest Train = Bhopal-Shatabdi (runs at a speed up to 140 Km/ph)
Train with Maximum Number of Halts = Howrah-Amritsar Express (115 halts)

if any one is incorrect plz correct.

list of all trains in which you'ed experienced for the 1st ever time? Mine is as follows
My 1st ever train----hirakhand exp (when I was 3 years old) (also 1st train to travel in general)
My 1st train to travel in sleeper in non sf----HWH-MAS MAIL (between BBS-MAS) (those days this train was not upgraded to SF category i.e in the year 2000) (also my 1st ever long distance journey)
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1st ever train to travel in FC---- sri jagannath exp between KUR-HWH (those days FC was common in 1999)
My 1st train to travel in 1A----not yet experienced
My 1st train to travel in 2A---maurya express (very recently from MURI to CPR) IN 1-5-2015
My 1st train to travel in 3A---Bhubaneswar rajdhani between BBS-NDLS (Also 1st train to experience in LHB rake i.e in 3-9-2009)
My 1st train to travel in A/C Chaircar----Ratnachal exp (in 2007)
My 1st train to travel in CC (NON A/C)---ranchi-HWH intercity exp (via ASN) In 2011
My 1st train to travel in sf exp category---HWH-TPJ SF EXP Between KUR-TPJ in sleeper class (2007)
My 1st rain to experience in WAP7 (actually a mega offlink)---HWH-TPJ SF EXP (Between VSKP-VM)---In 2009
My 1st ever duronto train I'VED experienced ---- MAS-NZM duronto exp in december 2011 by sleeper class
My 1st train to travel in shatabdi/Jan shatabdi----- HWH-RNC Shatabdi/Hubli-Bangalore Jan shatabdi exp
My 1st train to travel in EC--- not yet experienced
My 1st train to experience in Garib rath exp---BBS-RNC Garib rath exp between BBS-RNC. in 2007. (those days this train was not extended to DHN)
Any Ideas u've have??