List of station codes (with zonal rly name), which have other meanings:
MOU>Manoharpur>SE R>*Other_Corporate_Memorandum of Understanding
CAF>Chanda Fort>SEC R>*Other_Corporate_Composite Application form
CIL>Chilbila>N R>*Other_Corporate_Coal India Ltd
BSL>Bhusaval>C R>*Other_Corporate_Bhilwara Synthetics Ltd
BHEL>Bhel...
more...

Halt>SC R>*Other_Corporate_Bharat Heavy Electricals Ltd
BEML>Beml Nagar>SW R>*Other_Corporate_Bharat Earth Movers Ltd
BAL>Budalur>S R>*Other_Corporate_Bajaj Auto Ltd
ABB>Abada>SE R>*Other_Corporate_Asian Brown Boweri Ltd
AGM>Agaram Sibbandi >S R>*Other_Corporate_Annual General Meeting /
AGM= Astt General Manager
CP>Chitpur>E R>*Other_Connaught Place, New Delhi
PDF>Padampur>W R>*Other_Computer_PDF FILE
DOS>Dehri On Sone>EC R>*Other_Computer_DOS=Disk Operating System
DTP>Diviti Palli>SC R>*Other_Computer_Desktop printer
CD>Chandrapur>C R>*Other_Computer_Compact Disc
PC>Pachora>C R>*Other_COMPUTER_
AD>Adoni>SC R>*Other_Christian year, After Death
KID>Khairar>NC R>*Other_CHILD
CPB>Kanpur Bge L Bk >N R>*Other_Central Parliamentary Board
CAT>Chattar Hat>NF R>*Other_Cat=Billi (In Hindi)
CAP>Chatrapur>ECO R>*Other_Cap=Topi (In Hindi)
BSE>Badshahpur>N R>*Other_Business_Mumbai Stock Exchange
BUS>Badausa>NC R>*Other_Bus = Mode of Transportation
BBC>Bhachhbar>NW R>*Other_British Broadcasting Corp.
BOX>Bhojasar>NW R>*Other_Box
BF>Bagetar>NF R>*Other_BF_Boy Friend
BC>Bareilly City>NE R>*Other_Before Christ
CAR>Chunar>NC R>*Other_Automobile
AND>Andampaliam>S R>*Other_AND
BALI>Bhaili>W R>*Other_an Indonesian island
CIA>Chheharta>N R>*Other_American Agency
ADD>Adas Road>W R>*Other_Algebra_ADD
AC>Armemian Ghat C >SE R>*Other_Air conditioned / Alternate Current
AGE>Angai>NC R>*Other_AGE
AO>Aonla>N R>*Other_Accounts officer
ABLE>Ambale>C R>*Other_able
AAG>Angar>C R>*Other_AAG (in Hindi)= Fire
NRI>Naraina>NW R>*Other_ Non resident Indian