Important Abbrevation

• VDU = video display unit
• CRT = cathode ray tube
• CRO Cathode Ray Oscillator
• SARS Severe Accute respitoratry syndrome
• BOT Built operate transfer
• AMU Atomic mass unit
• EMF Electromotive Force or Electromagnetic Field (Most apt is Electromotive Force)
• ADH Anti diuretic harmome
• STP Standard Temperature and Pressure
• NPT Network time protocol
• CRT Cathode ray tube
• SARS Severe Acute Respiratory Syndrome
• BOT Built Operate transfer
• AMU Atomic Mass Unit
• EMF Electromotive force
• ADH Anti Diuretic Hormone
• STP Standard Temperature Pressure
• GeV Giga Electron Volt
• NTP Normal Temperature Pressure
• CRT Cathode Ray Tube
• The ore of mercury metal.–cyanabar
• SARS : severe acute respiratory syndrome
• NTP : network time protocol
• RQ : respiratory quotient
• PVC : polyvinyl chloride
• NPN : negative positive negative
• WAN : wide area network
• ECG: electro cardio gram
• CPU: central processing unit
• BCG : bacillus of calmette –Guerin
• STP standard temperature and pressure/ Shielded Twisted Pair
• ATP Adenosine Tri-Phosphate
• PNP proton – neutron – proton
• [Positive-Negative-Positive (transistor) ]
• LAN local area network
• KWh kilo watt hour
• BTU British Thermal Unit
• LDL Low-density lipoprotein
• [commonly referred to as bad cholesterol]
• ROM Read only memory
• MAF million acre feet
• SONAR Sound Navigation and Ranging
• LCD=LIQUID CRYSTAL DISPLAY
• HDL= HARDWARE DESCRIPTION LANGUAGE/High-Density Lipoprotein
• UHF= ULTRA- HIGH FREQUENCY
• LED= LIGHT EMITTING DIODE
• BASIC= BEGGINER’S ALL PURPOSE SYMBOLIC INSTRUCTION CODE
• HST = HIGH SPEED TECHONOLGY
• DBS=DATA BASE SERVER
• V.L.C.C stands for Very large crude carrier.
• VTOL = vertical take off and landing
• SETI = Search for Extraterrestrial Intelligence = a project to find Aliens
• Fax is the short form of Facsimile which means identical copy
• SETI => Search for Extraterrestrial intelligence.
• On the PH scale what does PH stand for-Potential Hydrogen
• ABM: Anti Ballistic Missiles
ABVP: Akhil Bharatiya Vidyarthi Parishad
AC: Alternating Current; Ashoka Chakra
ACU: Asian Currency Union
AD: anno Domini; in the year of Lord Christ
ADB: Asian Development Bank
ADC: Aide-de-Camp; Access Deficit Charge
ADF: Asian Development Fund
ADS: Air Defence Ship
AJT: Advanced Jet Trainer
AG: Accountant General; Adjutant General
AI: Air India
AIDS: Acquired Immune Deficiency Syndrome
AIIMS: All India Institute of Medical Sciences
AIR: All India Radio; Annual Information Report
AITUC: All India Trade Union Congress
AJT: Advanced Jet Trainer
ALH: Advanced Light Helicopter
AM: ante meridiem; before noon
AMC: Army Medical Corps; Asset Management Companies
AME: Associate Member of the Institute of Engineers
APC: Agricultural Prices Commission
APEC: Asia-Pacific Economic Cooperation
APPLE: Ariane Passenger Payload Experiment
APPU: Asian Pacific Postal Union
ARC: Asset Reconstruction Company
ARDR: Agricultural and Rural Debt Relief
ASAT: Anti-Satellite weapon
ASC: Army Service Corps
ASCI: Advanced Strategic Computing Initiative
ASCII: American Standard Code for Information
ASEAN: Association of South-East Asian Nations
ASEM: Asia-Europe Meeting
ASIMO: Advanced Step in Innovative Mobility
ASLV: Augmented Satellite Launch Vehicle
ASMA: Antarctica Specially Managed Area
ASSOCHAM: Associated Chambers of Commerce and Industry
ATA: Air Time Authority; Allen Telescope Array
ATC: Air Traffic Controller
ATM: Automatic Teller Machine
ATR: Action Taken Report
ATV: Automatic Transfer Vehicle
AUM: Assets Under Management
AVC: Army Veterinary Corps
AVM: Additional Volatility Margin
AWACS: Airborne Warning and Control System

B
BARC: Bhabha Atomic Research Centre
BBC: British Broadcasting Corporation
BC: Before Christ; Board of Control; British Columbia; Battery Commander
BCG: Bacillus Calmette Guerin—Anti-Tuberculosis Vaccine
BICP: Bureau of Industrial Costs and Prices
BIFR: Board of Industrial and Financial Reconstruction
BIOS: Basic Input Output System
BKU: Bharatiya Kisan Union
BMD: Ballistic Missile Defence System
BOLT: BSE On-Line Trading (System)
BOSS: Bharat Operating System Solutions
BPO: Business Process Outsourcing
BPR: Bottom Pressure Records
BRO: Border Road Organisation
BSE: Bombay Stock Exchange
BSF: Border Security Force
BSNL: Bharat Sanchar Nigam Ltd

C
CA: Chartered Accountant
CABE: Central Advisory Board of Education
C & AG: Comptroller & Auditor General
CAIR: Centre for Artificial Intelligence and Robotics
CAPART: Council for People’s Action and Advancement of Rural Technology
CAPES: Computer-Aided Paperless Examination System
CAS: Chief of Army Staff; Chief of Air Staff; Conditional Access System
CB: Citizen Band (Radio)
CBI: Central Bureau of Investigation
CBFC: Central Board of Film Certification
CCPA: Cabinet Committee on Political Affairs
CD: Conference on Disarmament
C-DAC: The Centre for Development of Advanced Computing
CDMA: Code Division Multiple Access
CECA: Comprehensive Economic Cooperation Agreement
CERN: European Organisation for Nuclear Research (Pronounced CERN in French)
CFC: Chlorofluro Carbon
CFS: Container Freight Station
CHOGM: Commonwealth Heads of Government Meeting
CIA: Central Intelligence Agency (of U.S.A.)
CIBIL: Credit Information Bureau (India) Ltd
CIC: Chief Information Commissioner
CID: Criminal Investigation Department
C-in-C: Commander-in-Chief
cif: cost, insurance and freight
CIS: Commonwealth of Independent States
CISF: Central Industrial Security Force
CITES: Convention on International Trade in Endangered Species
CITU: Centre of Indian Trade Unions
CLASS: Computer Literacy and Studies in Schools
CLAWS: Centre for Land Warfare Studies
CM: Command Module; Chief Minister
CMP: Common Minimum Programme
CNG: Compressed Natural Gas
CNN: Cable News Network
CNS: Chief of the Naval Staff
CO: Commanding Officer
COD: Central Ordnance Depot; Cash on Delivery
CPCB: Central Pollution Control Board
CPI: Communist Party of India
CPI(M): Communist Party of India (Marxists)
CPU: Central Processing Unit
CR: Central Railway
CRAC: Cyber Regulation Advisory Council
CRDi: Common Rail Direct injection
CRISIL: Credit Rating Information Services of India Limited
CRM: Customer Relationship Management
CRR: Cash Reserve Ratio
CRPF: Central Reserve Police Force
CSIR: Council of Scientific and Industrial Research
CTBT: Comprehensive Test Ban Treaty
CTT: Commodities Transaction Tax
CVRDE: Combat Vehicles Research and Development Establishment

D
DA: Dearness Allowance; Daily Allowance
DAVP: Directorate of Advertising and Visual Publicity
DC: Deputy Commissioner; Direct Current in Electricity
DDT: Dichloro-Diphenyl Trichloro-ethane (disinfectant)
DIN: Director Information Number
DM: District Magistrate; Deputy Minister
DMIC: Delhi-Mumbai Industrial Corridor
DMK: Dravida Munnetra Kazhagam (a regional political party of Tamil Nadu)
DNA: de-oxyribonucleic acid
DO: Demi-official (letter)
DOD: Department of Ocean Development
DPEP: District Primary Education Programme
DPI: Director of Public Instruction
DRAM: Dynamic Random Access Memory
DRDO: Defence Research and Development Organisation
DST: Daylight Saving Time
DRES: Department of Renewable Energy Sources
DTH: Direct to Home (broadcasting)

E
ECG: Electro Cardio-gram
ECS: Electronic Clearing Service
ECT: Electro-convulsant Therapy (electric shock treatment)
EDUSAT: Education Satellite
EEG: Electro-encephalography
EET: Exempt Exempt Taxation
EFA: Education for All
EFF: Extended Fund Facility
e.g.: exempli gratia; for example
EHTP: Electronic Hardware Technology Parks
ELISA: Enzyme Linked Immuno Solvent Assay (used for testing AIDS)
EMI: Equated Monthly Instalment
EMS: European Monetary System
EMU: Electric-Multiple Unit; Extra-vehicular Mobility Unit; (European) Economic and Monetary Union
E & OE: Errors and Omissions Excepted
EPROM: Erasable Programmable Read Only Memory
ER: Eastern Railway
ERM: Exchange Rate Mechanism
ERNET: Educational and Research Network
ESA: European Space Agency
ESCAP: Economic and Social Commission for Asia and the Pacific
ESMA: Essential Services Maintenance Act
ESOP: Employee Stock Option Programme
etc.: et cetera (and other things)
EU: European Union
EVM: Electronic Voting Machine

F
FAO: Food and Agriculture Organisation
FBI: Federal Bureau of Investigation (of the U.S.A.)
FCNR: Foreign Currency (non-resident) Accounts Scheme
FDR: Flight Data Recorder; Fixed Deposit Receipt
FEMA: Foreign Exchange Management Act
FERA: Foreign Exchange Regulations Act
FICCI: Federation of Indian Chambers of Commerce and Industry
FII: Foreign Institutional Investors
FIPB: Foreign Investment Promotion Board (of India)
FLAG: Fibre Optic Link Around the Globe
FM: Field Marshal; Frequency Modulated
FPSB: Financial Planning Standards Boards (India)
FRBM: Fiscal Responsibility and Budget Management
FSSA: Food Safety and Standards Authority (of India)
FTA: Free Trade Area
FTP: File Transfer Protocol

G
GAGAN: GPS-aided Geo-augmented Navigation
GAIL: Gas Authority of India Limited
GAIN: Global Alliance for Improved Nutrition
GATS: General Agreement on Trade in Services
GATT: General Agreement on Tariffs and Trade
GCA: General Currency Area
GCC: Gulf Cooperation Council
GCM: Greatest Common Measure
GEF: Global Environment Fund
GHQ: General Headquarters
GIC: General Insurance Corporation
GIST: Graphics and Intelligence-based Script Technology
GMPS: Global Mobile Personal Communications System
GMRT: Giant Meterwave Radio Telescope
GMT: Greenwich Mean Time
GNSS: Global Navigation Satellite System
GNP: Gross National Product
GOC: General Officer Commanding
GPO: General Post Office
GPRS: General Packet Radio System
GPS: Global Positioning System
GSLV: Geosynchronous Satellite Launch Vehicle
GSP: Generalised Special Preferences
GST: Goods and Service Tax
GSTP: Global System of Trade Preferences

H
HAWS: High Altitude Warfare School
HCF: Highest Common Factor
HDI: Human Development Index
HDTV: High Definition Television
HE: His (or Her) Excellency; His (or Her) Eminence; High Explosive; Horizontal Equivalent
HITS: Headend In The Sky
HMMWV: High Mobility Multipurpose-Wheeled Vehicle
HMS: Hybrid Mail Service
HP: Himachal Pradesh; Horizontal Plane; Horse Power
HTML: Hyper Text Markup Language
HTTP: Hypetext Transfer Protocol
HUDCO: Housing and Urban Development Corporation
HVDC: High Voltage Direct Current

I
IAAI: International Airport Authority of India
IAAS: Indian Audit and Accounts Service
IADF: International Agricultural Development Fund
IAEA: International Atomic Energy Agency
IAF: Indian Air Force
IAMC: Indian Army Medical Corps
IAS: Indian Administrative Service
IATA: International Air Transport Association
IATT: Inland Air Travel Tax
IBRD: International Bank for Reconstruction and Development
IBEX: Interstellar Boundary Explorer Mission
ICANN: Internet Corporation for Assigned Names and Numbers
ICAO: International Civil Aviation Organisation
ICAR: Indian Council of Agricultural Research
ICCR: Indian Council of Cultural Relations
ICCW: Indian Council for Child Welfare
ICDS: Integrated Child Development Service
ICJ: International Court of Justice (with Headquarters at the Hague)
ICL: Indian Cricket League
ICMR: Indian Council of Medical Research
ICPA: Indian Cricket Players’ Association
ICRC: International Committee of the Red Cross
IDA: International Development Association
IDBI: Industrial Development Bank of India
IDSA: Institute of Defence Studies and Analysis
i.e.: id est; that is
IEA: International Energy Agency
IES: Indian Economic Service
IEX: Indian Energy Exchange
IFRS: International Financial Reporting Standard
IFS: Indian Foreign Service; Indian Forest Service
IFTU: International Federation of Trade Unions
IFWJ: Indian Federation of Working Journalists
IGNOU: Indira Gandhi National Open University
IIPA: Indian Institute of Public Administration
IISS: International Institute of Strategic Studies
IIT: Indian Institutes of Technology
ILO: International Labour Organisation
IMA: Indian Military Academy
IMET: International Military Education Training Programme
IMF: International Monetary Fund
IMO: International Maritime Organisation
IN: Indian Navy; Intelligent Network
INA: Indian National Army
INK: International Newspaper Kiosks
INMARSAT: International Maritime Satellite Organisation
INMAS: Institute of Nuclear Medicines and Allied Sciences
INS: Indian Naval Ship; Indian Newspaper Society
INSAS: Indian Small Arms System
INSAT: Indian National Satellite
INTERPOL: International Police Organisation
INTUC: Indian National Trade Union Congress
IOC: International Olympic Committee
IP: Indian Police
IPC: Indian Penal Code
IPCC: Intergovernmental Panel on Climate Change
IPEC: International Programme on Elimination of Child Labour
IPR: Intellectual Property Right
IPS: Indian Police Service; Indian Postal Service
IPTV: Internet Protocol Television
IPU: Inter-Parliamentary Union
IQ: Intelligence Quotient
IR: Infra-red
IRA: Insurance Regulatory Authority
IRBM: Intermediate Range Ballistic Missile
IREP: Integrated Rural Energy Planning
IRS: Indian Remote Sensing Satellite; Indian Revenue Service
ISAF: International Stabilization and Assistance Force (in Afghanistan)
ISC: Inter-State Council
ISCS: Integrated Smart Card System
ISD: International Subscriber Dialled (telephone)
ISH: Information Super Highway
ISKCON: International Society for Krishna Consciousness
ISO: International Standardisation Organisation
ISP: Internet Service Provider
ISRO: Indian Space Research Organisation
ISS: International Space Station
IST: Indian Standard Time
ISTRAC: ISRO Telemetry, Tracking and Command Network
ITDC: Indian Tourism Development Corporation
ITO: International Trade Organisation; Income-tax Officer
ITU: International Tele-communication Union
IUC: Interconnect User Charge

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