The full form of 'GATT' is-

ABM- Anti-Ballistic Missile

ACC - Asian Cricket Council.

ACD- Asia Cooperation Dialogue.

AFC- Asian Football Confederation.

AI- Amnesty International.

AIDS- Acquired Immune Deficiency Syndrome

AIT- Asian Institute of Technology

AME- Arab Monetary Fund 

APEC- Asia-Pacific Economic Cooperation.

AESM- Asia Europe Summit Meeting.

B Pharm- Bachelor of Pharmacy.

BCCI- Board of Control for Cricket in India.

 BIS- Bank for International Settlements 

CIA - Central Intelligence Agency.

CID- Criminal Investigation Department.

 CNN- Cable News Network.

 CSE- Certificate of Secondary Education. 

D.Lit- Doctor of Literature.

DV- Diversity Visa 

ECG- Electro Cardio Gram

FM- Frequency Modulation. 

GMT- Greenwich Mean Time.

HDC- Human Development Centre.

HDI- Human Development Index.

HIV- Human Immunodeficiency Virus. 

IBA- Institute of Business Administration.

ICC- International Conference Center.

ICC- International Chamber of Commerce.

ICC-  International Cricket Council.

ICC- International Criminal Court.

ICDDRB- International Centre for Diarrhoeal Diseases Research Bangladesh.

ICI- Imperial Chemical Industries.

ICJ-  International Court of Justice.

IJC- International Jute Corporation.

IIT- Islamic Institute of Technology.

ILO- International Labour Organization.

IMO- International Maritime Organization. 

IMO- International Mathematical Olympiad.

IMO- International Meteorological Organization

IPO- International Police Organization. 

IOC- International Olympic Committee

IOJ- International Organization of Journalists

IPUC- International Parliamentary Union Conference. 

IRRI- International Rice Research Institute.

ISI- Inter-Services Intelligence.

ITU- International Telecommunication Union

JP- Justice of the Peace. 

LLB- Bachelor of Law.

LMG- Light Machine Gun

MA- Master of Arts 

MBBS- Bachelor of Medicine and Bachelor of Surgery.

MP- Member of Parliament.

M. Phar- Master of Pharmacy.

MSC- Master of Science.

NDI- National Democratic Institute

NP- Notary Public

PC- Personal Computer.

PHD- Doctor of Philosophy

PM- Prime Minister

PNC- Palestine National Council

PTO- Please Turn Over

RA - Royal Academy

RAW- Research and Analysis Wing

RMS- Railway Mail Service

SDI- Strategic Defence Initiative

SEATO- South East Asian Treaty Organization

SIM- Subscriber Identity Module

SIS - Secret Intelligence Service

SMS- Short Message Service

TI- Transparency International 

TTE- Traveling Ticket Examiner

UK- United Kingdom

USA- United States of America

USSR- Union of Soviet Socialist Republic. 

VAT- Value Added Tax.

VHF- Very High Frequency

VIP- Very Important Person

WB- World Bank

WFC- World Food Council

WFP- World Food Programme

WTC- World Trade Centre

X-mas- Christmas