Important Abbreviations

OBC -Other Backward Class
OECD- Organization for Economic Co-operation and Development
OGL -Open General Licence
OIL -Oil India Limited
OMEGA -Options for making Extra Gains from Actinids
ONGC- Oil and Natural Gas Commission
OPEC -Organization of Petroleum Exporting Countries
OSH -Occupational Safety and Health
OTCEI -Over the Counter Exchange of India

PC- Personal Computer
PCI -Press Council of India
PCS -Provisional Civil Services
Ph.D -Doctor of Philosophy
PIN -Postal Index Number
PIO- Person of Indian Origin
PLO -Palestine Liberation Organization
PM -Prime Minister
POTA -Prevention of Terrorism Act
POTO -Prevention of Terrorism Ordinance
PPSC -Punjab Public Service Commission
PR -Public Relations
PRO -Public Relations Officer
PSC -Parliamentary Select Committee
PSDN -Packet Switched Data
PTO -Please Turn Over
PVC -Param Vir Chakra / Poly Vinyl Chloride
PVSM -Param Vishisht Seva Medal
PWD -Public Work’s Department
PWG- People’s War Group

RADAR- Radio Angle Direction and Range
RAW -Research and Analysis Wing
R&D -Research and Development
RBI -Reserve Bank of India
RCC -Reinforced Cement Concrete
RDX -Research Developed Explosive
RIMC -Rashtriya Indian Military College
RMS- Railway Mail Service
RLEGP- Rural Landless Employment Guarantee Program
RNA -Ribonucleic Acid
RPM- Revolutions Per Minute
RSS- Rashtriya Swayamsevak Sangh
RTO -Regional Transport Officer