Here there are the list of Abbreviation. These are the short form of long words. Most commonly used abbreviation are given below.
A.A. – Automobile Association (Anti Aircraft) .
A.A.A.A. – Asian Amateur Athletic Association.
A.B.C.– Atomic / Biological And Chemical Warfare .
A.A.F. – Auxiliary Air Force .
A.B.M. – Anti Ballistic Missile .
A.B.S. – Akhil Bhartiya Sena
A.B.S.U. – All Bodo Student Union .
A.B.V.P. – Akhil Bharatiya Vidyarthi Parishad .
A.C.A.S. – Airbome Collision Avoidance System .
A.C.C. – Arab Co-operation Council .
A.C.C. – Auxiliary Cadet Core .
A.D. – Anno Domoni , in the year of Lord Christ .
A.D.B. – Asian Development Bank .
A.D.F – Asian Development Fund .
A.E.C. – Atomic Energy Commission .
A.G. – Accountant General .
A.F.I.C. – Asian Finance and Investment Corporation .
A.I. – Air India .
A.H.Q. – Air Head Quarters/Army Head Quarters .
A.I.A – Associate of the Institute of Actuaries .
A.I.C.C – All India Congress Committee
A.I.D.S – Acquired Immune Deficiency Syndrome .
A.I.L. – Aeronautics India Limited .
A.I.I.M.S – All India Institute of Medical Sciences .
A.I.N.E.C. – All India Newspaper Editors Conference .
A.I.M.A. – All India Manufacturer’s Association .
A.I.J.A – All India Journalists Association .
A.I.S.S.F. – All India Sikh Students Federation .
A.I.R – All India Radio .
A.I.T.U.C. – All India Trade Union Congress .
A.I.W.C – All India Women’s Conference .
A.I.R.F. – All India Railwaymen’s Federation .
A.M. – Anti Meridium (before Noon)
A.M.C. – Army Medical Corps / Asset Management Companies .
A.M.E. – Associate Member of the Institute of Engineers .
A.P.C. – Agriculture Prices Commission .
A.P.E.C. – Asia-Pacific Economic Co-operation .
A.S.C. – Army Service Corp .
A.S.C.I. – Advertising Standard Council of India .
A.S.L.V. – Augmented Satellite Launch Vehicle .
A.S.P.A.C – Asian And Pacific Council .
A.T.C.I. – Air Time Committee of India .
A.T.M. – Automatic Teller Machine .
A.T.N. – Asian Television Network .
A.T.S. — Anti Tetanus Serum(injection) .
A.N.C. – African National Congress .
A.P.S.C. – Army Postal Services Core .
A.O.C. – Air Officer Commanding .
A.V.S.M. – Ati Vishisht Seva Medal .
A.V.C. – Army Veterinary Corps .
A.V.M. – Additional Volatility Margin .
A.W.A.C.S. – Airborne Warning and Control System .
B.A. – Bachelor of Arts/British Academy .
B.B.C. – British Broadcasting Corporation .
B.A.R.C. – Bhabha Atomic Research Center .
B.B.C – British Broadcasting Corporation .
B.C. – Before Christ .
B.C.G. – Bacillus Calmette Guerin .
B.I.C.P. – Bureau of Industrial Costs and Prices .
B.K.U. – Bhartiya Kisan Union .
B.O.A.C. – British Overseas Airways Corporation .
B.E. – Bachelor of Engineering .
B.R.O. – Border Road Organisation .
B.S.E. – Boundary Stock Exchange .
B.S.S. – Bharat Sevak Samaj .
B.S.F. – Border Security Force.
B.S.N.L. – Bharat Sanchar Nigam Limited .
B.M.P. – Bihar Military Police .
B.J.P. – Bhartiya Janta Party .
B.V.O. – Brominated Vegetable Oil .
C.A. – Chartered Accountant .
C & A.G. – Comptroller and Auditor General .
C.A.S. – Chief of Army Staff , Chief of Air Staff
C.A.T. – Center for Advanced Technology .
C.B.I. – Central Bureau of Investigation .
C.B.F.C. – Central Board of Film Certification .
C.C.I. – Cricket Club of India .
C.C.I.C – Central Cottage Industries Corporation .
C.D. – Conference on Disarmament .
C.E.F. – Commonwealth Equality Fund .
C.E.N.V.A.T – Central Value Added Tax .
C.F.C – Chloroform Carbon .
C.F.S. – Container Freight Station .
C.G.S. – Chief of General Staff / Centimeter Gram Second .
C.I.A – Central Intelligence Agency (U.S.A) .
C.I.B. – Credit Information Bureau .
C.I.D – Criminal Investigation Department .
C-in-C. – Commander-in-Chief .
C.I.S. – Commonwealth of Independent Status .
C.I.S.F. – Central Industrial Security Force .
C.I.T.U – Center of Indian Trade Union .
C.J.M. – Chief Judicial Magistrate .
C.J. – Chief Justice .
C.M.O. – Chief Medical Officer .
C.N.N. – Cabe News Network .
C.N.S. – Chief of The Naval Staff .
C.O. – Commanding Officer/Circle Officer .
C.O.D. – Central Ordnance Depot .
C.P.I. – Communist Party of India .
C.R. – Central Railway .
C.R.A.C. – Cyber Regulation Advisory Council .
C.R.M. – Customer Relationship Management .
C.R.P.F. – Central Reserve Police Force .
C.R.R. – Cash Reserve Ratio .
C.S.I.R. – Council of Scientific and Industrial Research .
C.T.B.T. – Comprehensive Test Ban Treaty .
C.T.O. – Central Telegraph Officer/Central Tractor Organisation .
C.V.C. – Chief Vigilance Commissioner .
D.A. – Dearness Allowance/Daily Allowance .
D.A.V.P. – Directorate of Advertising and Visual Publicity .
D.C. – Direct Current/Deputy Commissioner .
D.C.L. – Doctor of Civil Low .
D.D.T. – Dichloro-Diphenyl-Trichloroethane .
D.I.G. – Deputy Inspector General .
D.Litt. – Doctor of Literature .
D.M. – District Magistrate .
D.M.K. – Dravida Munetra Karhagam .
D.N.A. – De-oxyribonucleic Acid .
D.O. – Demi Offcial (letter)
D.O.D. – Department of Ocean Development .
D.P.I. – Director of Public Instruction .
D.R.D.O. – Defense Research and Development Organisation .
D.R.E.S. – Department of Renewal Energy Source .
D.T.H. – Direct to Home .
D.Sc. – Doctor of Science .
D.V.C. – Damodar Valley Corporation .
D.J. – District Judge .
E.A.R.C. – Economic Administration Reforms Commission.
E.C.I.L. – Electronic Corporation of India Limited.
E.C.U. – European Currency Unit.
E.H.T.P. – Electronic Hardware Technology Park .
E.P.Z. – Export Processing Zone.
E.P.I. – Engineering Project India.
E.R. – Eastern Railway .
E.R.D.A. – Energy Research and Development Administrator.
E.R.M. – Exchange Rate Mechanism.
E.S.A. – European Space Agency.
E.R.P. – European Recovery Programme.
E.S.A. – European Space Agency.
F.A.O. – Food and Agriculture Organisation.
F.B.I. – Federal Bureau of Investigation (of the U.S.A)
F.C.I. – Food Corporation of India/Fertilizer Corporation of India.
F.E.R.A. – Foreign Exchange Regulation Act.
F.I.C.C.I. – Federation of India Chambers of Commerce and Industry.
F.S.I. – Fisheries Survey of India.
F.M. – Field Marshal.
F.T.I.I – Film and Television Institute of India.
G.A.T.T. – General Agreement on Tariffs and Trade.
G.A.I.L – Gas Authority of India Limited .
G.E.A.C. – Genetic Engineering Approval Committee .
G.E.F. – Global Environment Fund .
G.H.Q. – General Headquarters.
G.I. – Government Issue .
G.I.C. – General Insurance Corporation.
G.M.T. – Greenwich Mean Time.
G.M.R.T. – Giant Meter wave Radio Telescope.
G.N.P. – Gross National Product .
G.O.C. – General Officer Commanding.
G.P.F. – General Provident Fund.
G.P.O. – General Post Office.
G.P.S. – Global Positioning System.
G.S.L.V. – Geosynchronous Satellite Launch Vehicle .
G.T.O. – Geosynchronous Transfer Orbit.
H.A.L. – Hindustan Aeronautics Limited.
H.E.C. – Heavy Engineering Corporation.
H.E.L. – Heavy Electricals Limited.
H.M.T. – Hindustan Machine Tools.
H.M.S. – Hybrid Mail Service.
H.S.L. – Hindustan Steel Limited.
H.T.R. – High Temperature Reactor.
H.T.M.L. – Hyper Text Markup Language.
H.U.D.C.O. – Housing and Urban Development Corporation.
H.V.D.C. – High Voltage Direct Current.
I.A. – Indian Airlines.
I.A.A.I. – International Airport Authority of India.
I.A.A.S. – India Audit and Accounts Service.
I.A.S. – Indian Airlines Corporation.
I.A.F. – Indian Air Force.
I.A.M.C. – Indian Army Medical Corps.
I.A.E.A. – International Atomic Energy Agency.
I.A.S. – Indian Administrative Service.
I.C.C. – International Chamber of Commerce.
I.C.C.R. – Indian Council of Culturer Relations.
I.C.M.R. – Indian Council of Medical Research.
I.C.C.W — Indian Council of Child Welfare.
I.C.J – International Court of Justice.
I.C.R.C.—International Committee of the Red Cross.
I.D.A. – International Development Association.
I.I.S.CO. – Indian Iron and Steel Company.
I.D.B.I. – Industrial Development Bank of India.
I.D.P.L. – Indian Drugs and Pharmaceuticals Limited.
I.E.A. – International Energy Agency.
I.F.A. – Indian Football Association.
I.F.S. – Indian Foreign Service/Indian Forest Service.
I.G.F. – Indian Growth Fund.
I.G.N.O.U. – Indira Gandhi National Open University .
I.I.P.A. – Indian Institute of Public Administration.
I.I.T. – Indian Institute of Technology.
I.L.O. – International Labour Organisation.
I.M.A. – Indian Military Academy.
I.N. – Indian Navy.
I.N.A. – Indian National Army.
INTESAT. – International Tele-Communication Satellite.
I.N.S.A. – Indian National Science Academy.
INTERPOL. – International Police.
I.N.T.U.C. – Indian National Trade Union Congress.
I.O.C. – International Olympic Committee/Indian Oil Corporation.
I.P.C. – Indian Penal Code.
I.P.S. – Indian Police Service/Indian Postal Service.
I.P.U. – Inter-Parliamentary Union.
I.Q. – Intelligence Quotient.
I.R.A. – Insurance Regulatory Authority.
I.R.C. – International Red Cross.
I.R.E.P. – Integrated Rural Energy Planning.
I.S.C. – Inter-State Council.
I.S.R.O – Indian Space Research Organisation.
I.S.O. – International Standardization Organisation.
I.S.T. – Indian Standard Time.
I.T.D.C. – Indian Tourism Development Corporation.
I.T.I. – Industrial Training Institute/Indian Telephone Industries.
I.T.O – International Trade Organisation /Income Tax Officer.
I.T.U. – International Tele-Communication Union.
I.U.N.C. – International Union for Nature Conservation.
J.A.L – Japan Air Lines.
J.C.O – Junior Commissioned Officer.
J.K.L.F – Jammu and Kashmir Liberation Front.
J.M.M. – Jharkhand Mukti Morcha.
J.P. – Justice of Peace.
J.P.C – Junior Parliamentary Committee.
K.A.N.U. – Kenya African National Union.
K.C. – Kirti Chakra.
K.G. – Kinder Garten.
K.g. – Kilogram.
K.V.K. – Krishi Vigyan Kendra.
L.B.W. – Leg Before Wicket.
L.C.A. – Light Combat Aircraft.
L.D.C. – Lower Division Clerk.
L.I.C. – Life Insurance Corporation.
L.L.B. – Bachelor of Low.
L.L.D. – Doctor of Low.
L.P.S.U. – Liquid Propulsion System Unit.
L.O.A.C. – Line of Actual Control(in Kashmir)
L.T.A.—Light Transport Aircraft.
L.T.T.E. – Liberation Tigers of Tamil Eelam.
M.A. – Master of Arts.
M.A.P.P. – Madras Atomic Power Project.
M.B.A. – Master of Business Administration.
M.B.B.S. – Bachelor of Medicine and Bachelor of Surgery.
M.B.M. – Master of Business Management.
M.C.C. – Marylebone Committee /Managing Committee.
M.D. – Doctor of Medicine.
M.E.P. – Minimum Export Price.
M.E.S. – Military Engineering Service.
M.F.N.—Most Favoured Nation.
M.L.A – Member of Legislative Assembly.
M.L.C. – Member of Legislative Council.
M.M.S. – Multimedia Messaging Service.
M.N.C. – Multi National Corporation.
M.Net. – Mobile Internet.
M.N.F. – Mizo National Front.
M.P. – Member of Parliament.
M.R.M. — Medium Range Missiles
M.Sc. – Master of Science.
M.T.O. – Multilateral Trade Organisation.
M.V.C. – Maha Vir Chakra.
N.A.A. – National Airport Authority.
N.A.E.P. – National Adult Education Programme.
N.A.G. – National Air Guard.
N.A.R.O. – National Amnesty and Redemption Organisation.
N.A.S.A – National Aeronautics and Space Administration.
N.A.T.O. – North Atlas and Thematic Mapping.
N.A.V. – Net Asset Value.
N.C.C. – National Cadet Corps.
N.C.D.C.—National Coal Development Corporation.
N.C.E.R.T.—National Council of Educational Research and Training.
N.C.O. – Non-Commissioned Officer.
N.D.A. – National Defense Academy/ National Democratic Alliance.
N.E.P. – National Education Policy.
N.E.R. – North Eastern Railway.
N.I.S. – National Institute of Sports.
N.I.O – National Institute of Oceanology.
N.I.I.T – National Institute of Information Technology.
N.L.F.—National Liberation Front.
N.M.D. – Nuclear Missile Defense.
N.P.B. – Nuclear Power Board.
N.P.L. – National Physical Laboratory.
N.P.T.C. – National Power Transmission Corporation.
N.R.D.C – National Research and Development Corporation.
N.S.E. – National Stock Exchange.
N.T.P.C. – National Thermal Power Corporation.
N.W.R.C. – National Water Resources Council.
O.A.S. – Organisation of American States.
O.A.U. – Organisation of African Unity.
O.A.N.A. – Organisation of Asian News Agencies.
O.E.E.C. – Organisation for European Economic Co-Operation.
O.I.C. – Organisation of Islamic Countries.
O.N.G.C. – Oil and Natural Gas Commission.
O.P.E.C. – Organisation of Petroleum Exporting Countries.
P.A. – Personal Assistant.
P.A.C. – Political Affairs Committee/Public Accounts Committee.
P.A.T.A – Pacific Asia Travel Association.
P.B.S. – Public Broadcasting System.
Ph.D. – Doctor of Philosophy.
P.C.C. – Pradesh Congress Committee.
P.C.S. – Public Civil Service/Punjab Civil Service.
P.S.C. – Public Service Commission.
P.T.I. – Press Trust of India.
P.T.O. – Please Turn Over.
P.I.A. – Pakistan International Airlines.
P.I.B. – Press Information Bureau.
P.I.N. – Postal Index Number.
P.M. – Prime Minister.
P.M.G. – Post Master Number.
P.O.T.A. – Prevention of Terrorism Act.
P.P. – Public Prosecutor.
P.V.C. – Param Vir Chakra.
P.V.S.M. – Param Vishista Seva Medal.
P.W.D. – Public Works Department.
Q.M.S. – Quick Mail Service.
Q.M.G. – Quarter Master General.
R.A.F. – Rapid Action Force.
R.B.I. – Reserve Bank of India.
R.A.P.P. – Rajasthan Atomic Power Project.
R.D.F. – Rapid Development Force.
R.M.S. – Railway Mail Service.
R.S.A. – Russian Space Agency.
R.S.S. – Rashtriya Swayamsevak Sangh.
R.L.V. – Reusable Launch Vehicle.
S.A.A.R.C. – South Asian Association for Regional Co-operation.
S.A.F.T.A. – South Asian Free Trade Area.
S.A.I.L. – Steel Authority of India Limited.
S.A.T.O. – South Atlantic Treaty Organisation.
S.A.L.T. – Strategic Arms Limitation Talks.
S.C. – Security Council/Supreme Court.
S.D.O. – Sub-Divisional Officer.
S.C.I – Shipping Corporation of India.
S.E.B.I. – Securities and Exchange Board of India.
S.I.T. – Special Investigation Team.
S.I.T.E. – Satellite Instructional Television Experiment.
S.M.S. – Short Messaging Service.
S.S.P. – Senior Superintendent of Police.
S.T.C. – State Trading Corporation.
S.T.D. – Sexually Transmitted Disease/Subscribe Trunk Dialing.
S.T.A.R.S. – Satellite Tracking and Ranging Station
S.T.E.P. – Science and Technology Entrepreneurship Park.
T.A. – Territorial Army/Travelling Allowance.
T.A.B.—Technical Assistance Board.
T.A.D.A. – Terrorist and Disruptive Activities (Prevention)Act.
T.A.P.S. – Tarapur Atomic Power Station.
T.E.L.C.O. – Tata Engineering and Locomotive Company.
T.E.R.L.S. – Thumba Equatorial Rocket Launching Station.
T.I.S.CO. – Tata Iron and Steel Company.
T.T.E. – Travelling Ticket Examiner.
T.I.F.R. – Tata Institute of Fundamental Research.
T.M.O. – Telegraphic Money Order.
T.N.T. – Tri Nitro Toluene(high explosive).
U.A.E. – United Arab Emirates.
U.A.V. – Unmanned Aerial Vehicle.
U.F. – United Front.
U.G.C. – University Grants Commission.
U.K. – United Kingdom.
U.L.F.A. – United Liberation Front of Assam.
U.M.S. – Unified Messaging Services.
U.N. – United Nation.
U.N.E.S.C.O. – United Nations Educational Scientific and Cultural Organisation.
U.N.I.C.E.F. – United Nation International Children’s Emergency Fund.
U.N.I. – United News of India.
U.N.O. – United Nations Organisation.
U.P.F. – United People Front.
U.P.S.C. – Union Public Service Commission.
U.S.A. – United States of America.
U.S.A.I.D. – United States Agency for International Development.
U.S.S.R. – Union of Soviet Socialist Republic.
U.S.I.S. – United States Information Services.
V.C. – Vice-Chancellor/Victoria Cross/Vir Chakra.
V.I.P. – Very Important Person.
V.R.C. – Vir Chakra.
V.R.D.E. – Vehicle Research and Development Establishment.
V.O.I.P. – Voice Over Internet Protocol.
W.A.P. – Wireless Application Protocol.
W.D.F. – Wasteland Development Force.
W.E.F. – World Economic Forum.
W.F.T.U. – World Federation of Trade Unions.
W.H.O. – World Health Organisation.
W.L.L. – Wireless in Local Loop.
W.R. – Western Railway.
W.T.O. – World Tourism Organisation.
W.T.U..C. – World Trade Union Congress.
X-Mas – Christmas
X.M.L. – Extensible Markup Language.
Y.M.C.A. – Young Men’s Christian Association.
Y.W.C.A. – Young Women’s Christian Association.
Z.B.B. – Zero-base Budgeting.
Z.E.T.A. – Zero Energy Thermo-Nuclear Assemble.
Z.U.P.O. – Zimbabwe United People’s Organisation.