RADAR Radio Angle Direction and Range
RAF Rapid Action Force
RAM Random Access Memory
RAW Research and Analysis Wing
RBI Reserve Bank of India
RCC Reinforced Concrete Cement
R & D Research and Development
RDF Rapid Development Force
RDS Radio Data Servicing
RDSS Radio Determination Satellite Service
RDX Research Developed Explosive
REACH Rehabilitate, Educate and Support Street Children
RIMC Rashtriya Indian Military College
RLO Returned Letter Office
RLV Reusable Launch Vehicle
RPM Revolution Per Minute
RPO Recruitment Process Outsourcing; Regional Passport Officer
RRB Regional Rural Bank
RRPI Rural Retail Price Index
RSS Rashtriya Swyamsevak Sangh
RSVP Repondez s'il vous plait (Fr.) reply, if you please
RTGS Real Time Gross Settlement System
RMS Railway Mail Service
RLEGP Rural Landless Employment Guarantee Programme
RNA Ribonucleic Acid
RPM Revolutions Per Minute
RSS Rashtriya Swayamsevak Sangh
RTO Regional Transport Officer