List of Full Important Abbreviations
| ABM – Anti Ballistic Missile |
| AD – Anno Domini (After the birth of Jesus) |
| ADF – Asian Development Fund |
| AERE – Atomic Energy Research Establishment |
| AFSPA – Armed Forces Special Power Act |
| AGOC – Asian Games Organising Committee |
| AIDS – Acquired Immuno Deficiency Syndrome |
| ALH – Advanced Light Helicopter |
| APPLE – Ariane Passenger Payload Experiment |
| ASAT – Anti-Satellite Weapon |
| ASEAN – Association of South-East Asian Nations |
| ASCI – Advanced Strategic Computing Initiative |
| ASCII – American Standard Code for Information Interchange |
| ATM – Automated Teller Machine |
| APEC – Asia Pacific Economic Cooperation |
| BIS – Bureau of Indian Standards |
| BIT – Binary Digit (Basic unit of information in computing and telecommunication) |
| BMDS – Ballistic Missile Defence System |
| BRO – Border Roads Organisation |
| BRT – Bus Rapid Transit |
| CAA – Civil Aviation Authority |
| CABE – Central Advisory Board of Education |
| CAG – Comptroller and Auditor General |
| CAD – Computer Aided Design |
| CAIR – Centre for Artificial Intelligence and Robotics |
| CAPES – Computer-Aided Paperless Examination System |
| CAZRI – Central Arid Zone Research Institute |
| CAT – Central Administrative Tribunal |
| CBI – Central Bureau of Investigation |
| CECA – Comprehensive Economic Cooperation Agreement |
| CERT – Computer Emergency Response team |
| CHOGM – Commonwealth Heads of Government Meeting |
| CISF – Central Industrial Security Force |
| CITES – Convention on International Trade in Endangered Species |
| CLASS – Computer Literacy and Studies in School |
| CNG – Compressed Natural Gas |
| COLA – Cellular Operator Association of India |
| CPCB – Central Pollution Control Board |
| CPRI – Central Power Research Institute |
| CSIR – Council of Scientific and Industrial Research |
| CVC – Central Vigilance Commission |
| DAVP – Directorate of Advertising and Visual Publicity |
| DDT – Dichlorodiphenyl Trichloroethane |
| DFDR – Digital Flight Data Recorder (Black Box) |
| DIG – Deputy Inspector General |
| DPSA – Deep Penetration Strike Aircraft |
| DPT – Diphtheria Pertussis Tetanus |
| DRDO – Defence Research and Development Organisation |
| ECG – Electro Cardiogram |
| ECT – Electro Concvulsive Therapy (electric shock treatment) |
| EEG – Electro-Encephalography |
| EET – Exempt Exempt Taxation |
| ELISA – Enzyme Linked Immuno Sorbent |
| ECGC – Export Credit Guarantee Corporation |
| ESCAP – Economic and Social Commission for Asia and the Pacific |
| EVM – Electronic Voting Machine |
| EPZ – Export Processing Zone |
| FDI – Foreign Direct Investment |
| FII – Foreign Institutional Investor |
| FBI – Federal Bureau of Investigation |
| FERA – Foreign Exchange Regulation Act |
| FEMA – Foreign Exchange Management Act |
| FICCI – Federation of Indian Chambers of Commerce and Industry |
| FRIBA – Fellow of the Royal Institute of British Architects |
| FLAG – Fibre Optic Link Around the Globe |
| GAIN – Global Alliance for Improved Nutrition |
| GATS – General Agreement on Trade in Services |
| GATT – General Agreement on Tariffs and Trade |
| GEF – Global Environment Fund |
| GMPS – Global Mobile Personal Communications System |
| GMT – Greenwich Mean Time |
| GNSS – Global Navigation Satellite System |
| GPS – Global Positioning System |
| GSLV – Geosynchronous Satellite Launch Vehicle |
| HAC – Hindustan Aluminium Corporation |
| HAL – Hindustan Aeronautics Limited |
| HIV – Human Immunodeficiency Virus |
| HRIDAY – National Heritage City Development and Augmentation Yojana. |
| HYVS – High Yield Variety Seeds |
| IAAI – International Airport Authority of India |
| IAEA – International Atomic Energy Agency |
| IBRD – International Bank for Reconstruction and Development |
| ICAO – International Civil Aviation Organisation |
| ICAR – Indian Council of Agricultural Research |
| ICMR – Indian Council of Medical Research |
| ICRC – International Committee of the Red Cross |
| IDPL – Indian Drugs and Pharmaceuticals Limited |
| IMO – International Maritime Organisation |
| INSAS – Indian Small Arms System |
| INSAT – Indian National Satellite |
| IPC – Indian Penal Code |
| IPCC – Intergovernmental Panel on Climate Change |
| KYC – Know Your Customer |
| KG – Kinder Garten |
| LCA – Light Combat Aircraft |
| LOC – Line of Control |
| LOAC – Line of Actual Control |
| LTA – Light Transport Aircraft |
| LIGO – Laser Interferamenter Gravitational-wave Observatory |
| MAT – Minimum Alternative Tax |
| METSAT – Meteorological Satellite |
| MMS – Multimedia Message Service |
| MRTS – Mass Rapid Transit System |
| MTCR – Missile Technology Control Regime |
| NACO – National AIDS Control Organisation |
| NADA – National Anti-Doping Agency |
| NAFTA – North American Free Trade Agreement |
| NASA – National Aeronautics and Space Administration |
| NATA – Natural Aptitude Test for Architecture |
| NATO – North Atlantic Treaty Organisation |
| NCEP – National Committee on Environmental Planning |
| NeGP – National e-Governance Plan |
| NEP – National Education Policy |
| NEPA – National Environment Protection Act |
| NTPC – National Thermal Power Corporation |
| OCI – Overseas Citizen of India |
| OAS – Organisation of American States |
| OAU – Organisation of African Unity |
| ODS – Ozone Depletion Substances |
| OIC – Organisation of Islamic Countries |
| OSCE – Organisation for Security and Cooperation in Europe |
| OROP – One Rank One Pension |
| PURA – Provision of Urban Amenities in Rural Areas |
| PATA – Pacific Asia Travel Association |
| PIB – Press Information Bureau |
| PN – Participatory Note |
| POTA – Prevention of Terrorism Act |
| PSLV – Polar Satellite Launch Vehicle |
| PWD – Public Works Department |
| QIB – Qualified Institutional Buyer |
| QIP – Qualified Institutional Placement |
| RAF – Rapid Action Force |
| RBI – Reserve Bank of India |
| RCC – Reinforced Cement Concrete |
| RDSS – Radio Determination Satellite Service |
| RLV – Reusable Launch Vehicle |
| RTGS – Real Time Gross Settlement System |
| SAFTA – South Asian Free Trade Area |
| SAIL – Steel Authority of India Limited |
| SAPTA – SAARC Preferential Trading Agreement |
| SATNAV – Satellite Navigation |
| SAVE – SAARC Audio Visual Exchange |
| SCO – Shanghai Cooperation Organisation |
| SCOPE – Standing Commitiee of Public Enterprises |
| SEBI – Securities and Exchange Board of India |
| SIDBI – Small Industries Development Bank of India |
| SMART – Simple Moral Accountable Responsive and Transparent |
| SPIN – Software Process Improvement Networks |
| STARS – Satellite Tracking and Ranging Station |
| STARTS – Strategic Arms Reduction Treaty Station |
| SWIFT – Society for Worldwide Interbank Financial Telecommunications |
| TADA – Terrorist and Discruptive Activities (Prevention) Act |
| TAPS – Tarapur Atomic Power Station |
| TIN – Tax Identification Number |
| TNT – Tri Nitro Toluene (high explosive) |
| TRAI – Telecom Regulatory Authority of India |
| TRIPS – Trade Related Intellectual Property Rights |
| UAV – Unmanned Aerial Vehicle |
| UNCTAD – United Nations Conference on Trade and Development |
| UNDP – United Nations Development Programme |
| UNEP – United Nations Environment Programme |
| UNFPA – United Nations Fund for Population Activities |
| VAT – Value Added Tax |
| VLSI – Very Large Scale Integration |
| VOIP – Voice Over Internet Protocol |
| VSAT – Very Small Aperture Terminals |
| WADA – World Anti-Doping Agency |
| WAVE – Wireless Access for Virtual Enterprise |
| WFP – World Food Programme |
| WFTU – World Federation of Trade Unions |
| WLL – Wireless in Local Loop |
| WWF – World Wide Fund for Nature |
| YMCA – Young Men’s Christian Association |
| YWCA – Young Women’s Christian Association |
| ZSI – Zoological Survey of India |
| ZIP – Zone Improvement Plan |
