AAFI = Amateur Athletics Federation ofIndia
AAPSO  =   Afro-Asian People’s Solidarity Organisation
AASU =AllAssamStudentsUnion
ABM  = Anti Ballistic Missile
AC      =Alternate Current OR Air Conditioner
ACC   = Ancillary Cadet Core
AD     = Ano Domini (After the birth of Jesus)
ADB  = Asian Development Bank.
AERE =Atomic Energy Research Establishment
AGOC   =  Asian Games Organisation Committee
AICC  =AllIndiaCongress Committee
AICTE  =  AllIndiaCouncil of Technical Education
AIDS  =Acquired Immuno Deficiency Syndrome
AIFE   =AllIndiaFootball Federation
AIIMS   =   All India Institute of Medical Sciences
AIL   =  Aeronautics India Limited
AIMPLB =  AllIndiaMuslim Personal Law Board
AIR   =  AllIndiaRadio (Broadcasting)
AITUE =  AllIndiaTrade Union Congress
AM  = AntiMeridian(Before Noon)
ANC   =African National Congress
APEC =AsiaPacific Economic Cooperation
APSC  =Army Postal Services Core
ASEAN =         Association of South East Asian Nations
ASLV= Augmented Satellite Launch Vehicle
ASI    = Archaeological Survey ofIndia
ASSOCHAM= Associated Chamber of Commerce and Industry (India)
ASWAC         =Airborne Surveillance Warning and Control
ATS    = Anti Tetanus Serum
BAMS= Bachelor of Ayurvedic Medicine and Surgery
BARC =Bhabha Atomic Research Centre
BBC    =British Broadcasting Corporation
BC       =Before Christ (Before the birth of Jesus)
BCG    =Bacillus Calmette Guerin (Anti TB Vaccine)
BCCI = Board of Control for Cricket inIndia
BEL    =Bharat Electronics Limited
BENELUX =   Belgium,Netherlandsand Luxemburg
BHEL= Bharat Heavy Electronics Limited
BIFR    =    Board of Industrial Finance and Reconstruction (Formerly Industrial Reconstruction Finance Board)
BIMSTEC=            Bangladesh,India,Myanmar,Sri Lanka,ThailandEconomic Cooperation
BIS   =   Bureau of Indian Standards
B Pharma =       Bachelor of Pharmacy
BSF    = Border Security Force
CAD   =Command Area Development
CAG  = Comptroller and Auditor General
CARE =Cooperative for American Relief Everywhere
CASE  =Commission for Alternative Sources of Energy
CBI     =Central Bureau of Investigation
CBSE  =Central. Board of Secondary Education
CCEA =Cabinet Committee on Economic Affairs
CCS    =Cabinet Committee on Security
C-DAC =  Centre For Development of Advance Computing
CDMA   =Code Division Multiple Access
CDRI      =Central Drug Research Institute
CHOGM =CommonwealthHeads of Government Meeting
CID    = Criminal Investigation Department
CIS      =Commonwealth of Independent States
CISF   =Central Industrial Security Force
CITU   =Centre of Indian Trade Unions
CLAT  =Common Law Admission Test (Started May 2008)
CNG   =Compressed Natural Gas
COD   =Central Ordnance Depot
COFEPOSA=     Conservation of Foreign Exchange and Prevention of Smuggling Act
CPO =   Central Passport Organisation
CPRI  = Central Power Research Institute
CRPF  =Central Reserve Police Force
CRR    =Cash Reserve Ratio
CSIR   =Council of Scientific and Industrial Research
CSO    =Central Statistical Organisation
CTS     =Computerised Tomography Scanner
CVC    =Central Vigilance Commission
DDT    =Dichloro Diphenyle Tri-chloroethane
DFDR =’Digital Flight Data Recorder (Black box)’
DIG     =Deputy Inspector General
D. Lit. =Doctor of Literature
DM      =District Magistrate
DMK   =Dravida Munetra Kazhagam
DNA   =Di-oxyribo-Nucleic Acid
DPAP  =’Drought Prone Area Programme
DPC    =Dabhol Power Company
DRDO   = Defence Research and Development Organisation
DTH    =Direct to Home
DVD  = Digital Versatile Disk
EAS    =Employment Assurance Scheme
ECD    =European Central Bank
ECG    =Electro Cardiogram
EEC   =European Economic Community
EEG    =Electro Encephalogram
ELISA  = Enzyme Linked Immuno Sorbent Assay
EMF    =Electromotive Force
EPABX  =  Electronic Private Automatic Branch Exchange
EPZ   =Export Processing Zone
ERDA =Energy Research and Development Administration
ESMA =Essential Services Maintenance Act
EVM   =Electronic Voting Machine
EXIM Bank=    Export-Import Bank ofIndia